Indoor Cannabis Seeds

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Learn how to choose the best cannabis seeds for indoor growing and achieve large harvests of resinous flowers from your grow. Cultivation of cannabis with indoor seeds gives a grower control over the crop. You can micromanage every step of the plant's life cycle. Are you seeking for cannabis seeds to grow in a tent, grow box, or on your windowsill? Browse our selection of premium indoor weed seeds with pure genetics.

How to Choose Cannabis Seeds for Indoor Growing

Starting an indoor grow can seem overwhelming if you’ve never done it before. Choosing the right strain is definitely one of the most important aspects, and some brand-new growers can become lost along the many different offers on the current market. Keep reading in order to learn everything you need to know in order to choose the best strain for your indoor grow.

Table of Contents

You’ve probably taken hours or even days to choose the right seeds for your grow before. This is actually quite expected, and luckily there’s an endless amount of cannabis strains. Do you know how to choose the right cannabis seeds for indoor growing?

Out catalogue includes strains from some of the best seed banks, high quality strains that were created thanks to the work put into crossing and selecting by breeders; strains chosen due to their exceptional characteristics and transfer these traits to their descendance.

Nowadays, after decades of breeding, quality standards have set quite the bar, which is why you should always choose a strain that adapts to your needs. Let’s have a look at a step-by-step guide in order to make the process easier.

Cannabis Seeds for Indoor Growing: Types of Seeds

Years ago, we used to have quite an issue finding the right cannabis seeds that would germinate correctly, and figuring out if seeds were good or not. These used to be basic issues decades ago, but with the appearance of seed banks, and with years’ worth of work, growers no longer have to worry about such issues.

Currently, all seed banks guarantee germination if the process is done correctly. They also do germination tests before selling their seeds in order to guarantee a 99% success rate for growers.

The key question is what seeds should you grow indoors? Before growing a certain strain, make sure to choose it based on your needs, preferences and abilities; this will make sure that you’re happy with your harvest.

There are various types of seeds that can be classified y sex and their main qualities.

  • Photoperiod: which is to say, they have growth and flowering cycles that depend on the amount of light received.

This type of plant needs, ideally, 18h light and 6h darkness during the growth stage (which should be at least a month), 12h of light and 12h of darkness during the flowering period.

In countries which are along the equator or near it, where they have 12h of light all year round, photoperiod cannabis plants will grow until they’re adults* (approx. 1 month) and they’ll begin to flower, meaning that autoflowering plants are of little use in these areas.

*A way to stop plants from growing too small in such areas is to use artificial lighting to complement the lost hours of light up to 18h, allowing them to keep growing. You don’t need to use an incredibly potent light for this, as what you’re doing is essentially tricking your plants, simulating the daytime.

  • Autoflowering: these plants start to flower automatically from the second – fourth week onwards, regardless of the amount of light that they receive.

These plants are ideal for outdoor growers or indoor growers that don’t have much space. In countries such as Spain, where there’s a reduction in daylight towards the middle/end of summer, which tells the plant it should flower, autoflowering plants allow you to harvest while your photoperiod cannabis plants finish growing or flowering.

Usually, autoflowering plants should be ready to harvest after around two and a half to three months.

It’s true that autoflowering plants, because they have less growth time, can end up much smaller than photoperiod plants, which means that they tend to produce less. This is why, in indoor grows we recommend planting fast-flowering photoperiod plants, as you’ll be able to harvest larger amounts of possibly high-quality flowers in less time.

Some growers plant autoflowering strains indoors, although in order to make the most of them, they use 20h of light when growing, which makes for a larger electric bill but also larger yields than photoperiod plants.

Autoflowering plants can also be feminized or regular.

Regular Cannabis Seeds for Indoor Growing

Regular Seeds are those which produce both female and male plants. Remember, if wat you’re looking for is to obtain buds without seeds, you’re only interested in female plants. Once you can distinguish the plants’ sex, you’ll need to get rid of the male plants. In this case, we don’t particularly recommend this type of seed, as you can waste a lot of space and time in the process.

However, this type of seed is ideal for those growers who would like to make their own hybrids; if you want to research and make your own seeds by crossing your favourite strains, regular seeds are your best choice.

When cannabis seeds first began to be commercialized, they were all regular.

As we were saying before, regular seeds can be either photoperiod or autoflowering.

Caution! Don’t confuse regular seeds with brand seeds. In some places in South America (such as Argentina) people call seeds created by seed banks “regular” seeds; until recently many people planted seeds that they got from homegrown or bought flowers. -Some regular seeds can produce female plants, which produce flowers, as well as male plants (like the one shown above), which produce male flowers full of pollen which are designed to pollenate the female flowers and create seeds.

Feminized Cannabis Seeds for Indoor Growing

  • These are the most used seeds by growers and those which we recommend for beginner growers.
  • If you’re looking to obtain flowers, you can grow feminized seeds.
  • You won’t have male plants to get rid of, so you can use up all of your available space in order to grow female plants. This is great for urban indoor or outdoor grows, where space is incredibly important.
  • Additionally, if you grow feminized seeds you can save on soil and fertilizers used for male plants when germinated until you get rid of them.
  • Feminized plants are the same in quality as female regular seeds, even though many people believe the myth that they’re lower in quality.

Among feminized seeds, we can also find photoperiod seeds and autoflowering seeds rich in THC, CBD, as well as other cannabinoids and terpenes.

Seeds Rich in THC

For decades now, the demands of growers and consumers regarding the cannabis market has caused seed banks to specialize in high-THC strains that produce different aromas and flavours.

Via these combinations and selections, they’ve managed to generally increase the levels of THC found in cannabis plants. Analysis done in labs indicate that this cannabinoid has increased in most strains, going from 10 – 15% to 20 -25% approx. in a few decades.

This is the most well-known cannabinoid in cannabis, and it produces a psychoactive effect that is also medicinal.

However, effects produced by cannabis strains don’t only depend on the amount of THC in their buds.

For example, two strains could exist with the exact same proportion of THC. One may have stimulating effects and the other may have more relaxing effects. This is due to what’s called the entourage effect which is produced alongside other cannabinoids (CBG, CBD, CBN) and terpenes (Limonene, Pinene, Caryophyllene etc) which are also found in cannabis plants.

There are many strains which high THC levels, and as we were saying, most of them have THC levels over 18%. Among those with the highest THC content, you’ll find some particularly well-known strains such as Purple Punch, Mimosa EVO, TNT Kush, or Y Griega. Many consumers are looking for a strain high in THC, and although most of them contain over 18% of this cannabinoid, breeders are beginning to specialize in strains rich in other cannabinoids such as CBD or THCV.

Seeds Rich in CBD

A few years ago, it was discovered that there are some strains that, instead of containing high amounts of THC and high psychoactivity, have high CBD (Cannabidiol) contents, and a very low or almost non-existent psychoactive effect, and it’s been researched ever since.

CBD has quite the medicinal value, not just thanks to its multiple properties but also because it allows those who don’t tolerate THC well to benefit from cannabis.

It has been shown throughout many studies that this cannabinoid is efficient in regards to fighting stress, anxiety, inflammation, pains and aches, nicotine addiction and others, dermatitis, migraines and many other issues.

As of now, there are a wide range of products available that contain CBD, on a constantly expanding market; flowers, derivates, vaping liquids and much more, and many more seed banks are also offering more of this particular type of seed.

  • Their effects allow you to go about your daily business without the mental confusion caused by THC.
  • They can help you to reset your THC tolerance; if you’ve been consuming cannabis for a while and it seems like it’s no longer having an effect or that you may be experiencing anxiety with THC strains, you can consume CBD for a while to take a break.
  • Even consumers that are used to consuming THC can benefit from CBD to alleviate anxiety or help sleep easier.
  • THC:CBD 1:1 Ratio

This ratio includes seeds that produce flowers with a balanced THC and CBD content, which is to say, 50/50%.

The psychoactive effect produced by this type of flower is moderate to low, and much softer. According to many medicinal consumers, it’s the best ratio for treating pain such as anxiety, autism, fibromyalgia, pain and for stimulating the appetite.

It’s also apt for recreational users and chronic consumers that are looking for cannabis that allows them to stay active during the day and get their work done.

  • THC:CBD 1:2 Ratio

With this ratio you’ll be consuming strains with twice as much CBD than THC. This is the best ratio if you’re a medicinal or therapeutic consumer that needs more CBD but still a certain amount of THC.

Additionally, this ratio produces quite a soft psychoactive effect in consumers that aren’t used to cannabis. This type of strain is generally quite sought-after by therapeutic and medicinal consumers.

Some of the most well-known strains within this ratio due to their quality and how easy they are to grow are Jamaican Dream CBD, Green Poison CBD or Ice Cool CBD.

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  • THC:CBD 1:20 Ratio

Within this ratio you can find strains with minimum amounts of THC and high amounts of CBD. These strains don’t produce any type of psychoactive effect and they’re the best for patients that only need CBD.

They’re also useful for recreational consumers looking for a strain that satisfies their need to smoke while letting up on the THC for a while.

These strains are also ideal for consumers that don’t enjoy or like the effects of THC but like the favour of cannabis itself.

Some of the best strains in this group are: Only CBD, CBD Charlotte’s Angel and Sweet Pure CBD.

Autoflowering Strains

Autoflowering strains, also called autos or automatic, contain Ruderalis in their genes, a type of cannabis that grows naturally near the river Volga and in other areas with generally bad weather conditions or few hours of daylight.

Ruderalis plants have the particularity that they flower in short periods of time, regardless of the hours of daylight they receive. These plants, which produce almost no psychoactive effect, have been crossed with potent commercial strains designed to produce strains that don’t depend on the light to flower and are ready to harvest approximately 60 – 80 days after germination.

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As we were saying before in this post, these strains are ideal for fast outdoor harvests, while your photoperiod plants go through their necessary growth and flowering cycles.

Why shouldn’t you grow autoflowering seeds indoors?

In order to produce a decent amount of flowers, autoflowering strains need at least 18 hours of light a day during the entire process, growth and flowering. In as far as yield and effect, these strains tend to be lesser than most non autoflowering plants, even regular autoflowering seeds.

The carbon footprint produced by those extra 6 hours and the extra money required to simply turn your lots on is not worth it. Autoflowering strains are idea for growing outdoors, but they don’t make sense to grow in a grow tent that’s tall/large enough for photoperiod plants considering the amount of fast-flowering plants that exist.

If you don’t have much space to grow indoors and you can’t grow photoperiod plants even if you prune them, autoflowering plants can be highly useful when it comes to having some cannabis from your own harvest. One of the issues that autoflowering plants have is that due to the fact that they flower regardless of the amount of light they get, you won’t be able to take clones or cuttings to keep mother plants like you can with photoperiod plants.

Just One Strain or Multiple Strains?

One of the most common mistakes made by cannabis growers, especially beginners, is to grow different cannabis strains in the one setting.

It’s a common occurrence for there to be differences between plants grown from the same seed; they’re sisters, not clones, and they’re living beings that each get similar conditions but they’re not identical. Therefore, it’s safe to assume that there’s a much larger difference between plants grown from different seed strains.

Although it’s true that there are certain strains that, thanks to their structure, flowering time and nutritional needs, fit well with each other (such as Critical and Jamaican Dream); the easiest set up is to plant one strain on each growing area or grow tent.

If you plant different strains they’ll grow at a different rhythm and height, and depending on the chosen strains it may be complicated to correctly place your lighting. Plus, some plants will be ready to harvest earlier than others, so you’ll end up needing to use your lighting to maintain the last few plants, putting off your next round of plants. You’ll also be spending more on the electric bill and getting lower yields, which is exactly what you don’t want.

We recommend growing just one strain each time or choosing different strains with similar characteristics in as far as growing and structure. Even though it’s usually difficult to plant different strains in the same grow, there are strains such as Jamaican Dream and Critical or Jamaican Dream and Lemon King, which have similar structures and flowering times. The image above shows Jamaican Dream flowering indoors.

Important Characteristics for Cannabis Seeds for Indoor Growing

Knowing how to choose the right strain isn’t that hard; let’s have a look at some of the essential characteristics that you’ll need to take into account.

Out seed catalogue includes a filter so that you can search for strains depending on sex, flowering times, entourage effect, strength, flavour and other characteristics.

Effects

The type of effect produced is an aspect to keep in mind when it comes to choosing your cannabis seeds for indoor growing, even more so than the intensity of the high. This means that, apart from strength, you should also consider the type of effect produced by each strain and the fact that this is determined by their amount of cannabinoids and terpene profiles.

In our seed descriptions you’ll find a list of effects produced by each strain. Let’s have a look at the main effects produced by THC rich cannabis plants, as we’ve already talked about CBD-rich strains in this post.

If you would enjoy a mentally psychoactive, active, stimulating and creative effect, you can choose between classics such as Amnesia Haze, Jamaican Dream or Super Silver Haze. These sativas are some of the best for consuming during the day, activities outdoors etc.

If you’re looking for an even more electric and hyperactive effect, you can try out strains such as Psicodelicia, Malawi or High Level.

If you would prefer a euphoric effect with more of a physical high than the previous strains, we recommend Neville’s Haze, Moby Dick or Jack Herer.

Among strains with stimulating effects that aren’t too potent, you can find some gems such as Monster or Tangerine Dream.

More balanced effects can be found in strains such as Black Dream, Skunk 1 or Green Poison; hybrids with approx. 50% sativa and 50% indica.

If you want to relax while you enjoy light euphoria and potent physical effects, you’ll need to choose between Indica-dominant hybrids with a hint of sativa, such as Gorilla Candy, Critical Widow, Channel+ or Mohan Ram. This type of strain produces possibly the most pleasing effect among indica-dominant strains; they are relaxing but they won’t couch lock you after a couple of drags. The ideal high to get rid of stress at the end of the day and enjoy pleasing sensations.

And lastly, within THC-rich strains, if you’re looking for relaxing and narcotic effects you can find it in potent indica strains such as Black Domina, Cream Caramel or Purple Kush; strains that will relax you to the point of inducing sleep. Definitely the best strains for towards the end of the day. Many growers are on the lookout for the most potent cannabis seeds. Keep in mind that the strength of a strain doesn’t just depend on its THC. It also depends on its terpene profile (aromatic profile) and other cannabinoids.

Flavours and Aromas (Terpenes)

As we have already mentioned, the aroma and flavour of each cannabis strain is determined by the proportion of different terpenes in their buds. This, as well as modifying the effect of cannabinoids, also provides unique experiences with each drag, offering a never-ending combination of aromas.

The flavour and aroma of each strain is one of the most highly appreciated characteristics when it comes to choosing the right strain.

*Growing tip for better flavours: in order to conserve the original flavour of each strain we recommend using bio or bio-mineral fertilizers.

Main Cannabis Aromas

Just like with wine and coffee, in order to describe aromas there are certain flavours that are referenced.

Citric flavours which are similar to fruit are quite common among cannabis strains (as they share many terpenes in common).

  • Lemon: present in many stimulating strains (classified as Sativa-dominant) such as Lemon King, Lemon Skunk or Lemon Tree.
  • Orange: such as Orange Sherbet, with a fruity hint that’s also present in California Orange.
  • Mandarine: many strains classified as “Diesel” have hints of mandarine in their aroma, such as the delicious Tangie, Cream Mandarine XL and Red Mandarine F1 Fast Version.
  • Pomegranate: this bittersweet aroma is found in some strains such as Grapefruit, completing its aroma with a hint of fruit, or Jack White, which also has hints of incense.
  • Strawberry: another flavour that you can find in certain strains is strawberry. For example, strains such as Furious Candy or Strawberry Lemonade have delicious aromatic hints of strawberry.
  • Banana: over the last decade, many famous strains have been created with banana aromas such as Tropicanna Banana, Banana Krumble or Strawberry Banana Auto.
  • Haze: these strains are usually a combination of citric aromas (such as lemon or lime) with hints of incense, spices and fruits. Some of the best strains that best represent this aroma are Super Lemon Haze, with an intense lemon aroma with hints of pomegranate and spices, or Gipsy Haze, with a strong lime aroma with hints of incense and mango.
  • Diesel: this group of strains is known for their citric aroma (usually similar to mandarine) and combination of gas or diesel-like flavours. Some of the most famous strains in this group are Sour Diesel or Ice Cool.
  • Kush: the range of Kush aromas goes from more earthy to citric aromas with hints of pine, although all of them have a common flavour due to their high content in the terpene b-Caryophyllene and pungent, citric aromas produced by Limonene and Pinene among others.
  • Skunk: these old-school strains are characterized by their intense fruit aroma with citric hints. Some of the most famous European strains such as Cheese, Skunk 1 or Super Skunk, Triple Cheese or Critical fall into this group.
  • Fruity, sweet flavours such as Critical King or Blueberry (an absolute classic) or tropical fruity flavours such as Txomango or Pineapple Express.
  • Wood and other dryer flavours are also quite popular and can be found combined with different aromas such as Arjan’s Haze 1 or strawberry like Veneno.
  • Nutty aromas are also highly appreciated in many strains, such as the legendary Northern Lights, the potent Thai hybrid Sweet Tai or the famous Super Bud.
  • Caramel or candy-like flavours are also incredibly popular, among which you can find Sweet Zenzation, which has delicious fruit caramel flavours, or the mythical Cream Caramel, combining sweet, deep and fresh earthy flavours, or Mimosa X Orange Punch, which has an orange and mandarine caramel flavour.
  • Over the last decade, many breeders have created strains with intensely sweet and dessert-like flavours. There are many strains with such flavours, such as Biscotti Mintz which tastes deliciously of cookies, chocolate and mint, Purple Punch, with delicious apple pastel flavours, or Blueberry Muffin which tastes deliciously of blueberry.

Growing

Growth strength, flowering times, reaction to stress, extra growth during the flowering period… these are all things that you need to keep in mind when choosing these seeds.

Depending on the growing conditions that are available to you, you’ll need to choose the strain that best fits your needs and limits.

If this is the first time you’re growing cannabis, we recommend looking for seeds to test out that do well with stress and have short flowering times.

Now that you know how to choose your seeds, the next step is to germinate them.

Indoor Seeds

Cultivation of cannabis with indoor seeds gives a grower control over the crop. You can micromanage every step of the plant’s life cycle. An indoor setting allows you to control the plants’ feeding, lighting schedule, temperature, humidity, and other crucial factors for your indoor seeds’ optimum growth. Suppose you want to plant indoor seeds, this guide offers you all the information about growing marijuana indoors. We also provide a list of the best indoor seeds for indoor growth.

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Indoor Seeds

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Table of content

What Are Indoor Cannabis Seeds?

Although all cannabis strains can be cultivated in an indoor setting, some seeds are specifically meant to be cultivated in an indoor environment. Indoor cannabis seeds are sensitive to change in the climate and prefer to be in a controlled room.

Why Should You Grow Indoor Marijuana Seeds?

If you are starting, you may ask yourself, what are the benefits of growing indoor seeds? And how indoor cultivation impacts your plants? Are they better than outdoor seeds? Are they the highest THC seeds in the market? Your response to these questions depends on the indoor strain you choose to cultivate. Indoor seeds have a few advantages over outdoor seeds. Below, we explore the benefits and cons of using indoor seeds.

Pros of Indoor Seeds

    Control Over the Environment
    The good thing about growing indoor seeds is the ability to control their growth conditions, such as temperature, humidity, water, nutrients, lighting, and airflow. It allows you that your plants grow under optimal conditions, which translates to better and higher yields.
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Cons of Indoor Seeds

    Tiring, Time-Consuming, and Expensive
    Setting the grow room is a lot of work and requires a substantial investment because you need to purchase the grow kit, form the tents, lights, pots, air conditioning system, and grow medium. You may also need to hire professionals because doing a DIY setup may lead to some setbacks, affecting yields and quality of your indoor marijuana.

Tools and Equipment Used in Growing Indoor Cannabis Seeds

Suppose you want to grow indoor marijuana from the indoor seeds, you will need:

  • Grow room/grow tent
  • Growing lights
  • Air conditioning
  • Fans
  • Filters
  • Thermometer and hygrometer
  • pH test kits for test soil pH
  • LUX Meter for measuring and optimizing light in the grow room
  • Timer for automating light cycle
  • String/gardening wire for training your plants
  • Containers such as fabric pots for growing your plants
  • Seedling starter kit

Best Places for Growing Indoor Seeds

Now that you have all the equipment needed to grow your weed seed indoors, you need to choose the best place to grow your indoor cannabis seeds. These places include:

  • The basement
  • Garage
  • Attic
  • Grow box
  • Closet, or
  • Build a grow room

Choosing a Growing Medium for Indoor Seeds

When growing indoor marijuana seeds, you can use either soil or hydroponics as the growing medium. Soil is the most straightforward growing medium used by most cannabis growers, especially beginners. You can either buy the soil mix or create your own.

Hydroponic uses water or another soilless substrate, such as coco coir or pear as the growing medium. In this method, plants are fed with nutrients directly into the roots, giving the total grower control over the nutrient intake. This method is ideal for experienced growers and leads to improved yields.

Choosing Indoor Seeds

There are many weed seeds for indoor growing for sale, therefore, growers need to select quality indoor weed seeds. Discussed below are the 10 best marijuana seeds for indoor growing:

Sour Diesel

Sour Diesel is a well-known strain from the Diesel family that is highly potent. It is a cross between Chemdawg and Super Skunk. This strain is not recommended for beginner growers and prefers dry and warm climates. However, know how to control powdery mildew since Sour Diesel is susceptible. Therefore, it is recommended that you cultivate this cannabis strain indoors.

Sour Diesel indoor marijuana seeds grow into tall plants that can be monstrous if not trained. The strain’s flowering time lasts from 9 to 10 weeks, with 1.5 – 1.6 oz/ft² (450 – 500 g/m²) yield when it is grown indoor.

Hellfire OG

Hellfire OG is a perfectly balanced hybrid strain that gives a couch locking high. This strain was created by mixing Rascal’s OG Kush and SFV OG Kush. Hellfire OG boasts a THC content of 28 to 30% and has potent euphoric effects. Hellfire OG indoor weed seeds grow up to 7 feet (2 meters) high with compact and dense buds. Hellfire OG flowering time lasts 55 – 65 days with high yields of 1.3 – 1.6 oz/ft² (400 – 500 g/m²).

Granddaddy Purple

Granddaddy Purple is a beautiful purple colored strain that is a cross between Big Bud and Purple Uncle. These are top-shelf seeds that are highly sought after by both novice and veteran growers. Granddaddy Purple seeds give perfect weed plants for growing indoors because their height reaches up to 3.5 feet (100 cm) with a flowering time of 9 – 10 weeks. The strain’s buds are thick and dense with a layer of rich THC (15 – 19 %) trichomes. You can expect to reap high indoor yields of 1.3 – 1.6 oz/ft² (400 – 500 g/m²).

Chocolate Thai

Chocolate Thai is a 100% Sativa strain from Dutch Flowers. Like its name, the strain was first discovered in Thailand. This cannabis strain delivers an energizing, mind-clearing high. Though it has a low THC content of 10 to 15 %, users love this strain because of its creamy chocolate taste and delicious high that does not leave you couch-locked.

Chocolate Thai is a pretty tricky indoor weed seed to cultivate, and they are best left for expert growers who have the patience of waiting out their long flowering period and low yield. Suppose you are in a cold climate, it’s best to cultivate this weed seed indoors because it thrives in a warm and dry environment.

Wedding Cake

Wedding Cake indoor cannabis seeds are Indica dominant. The seeds grow into a short and sturdy plant that thrives in various environmental conditions. These are high THC seeds with a THC content of 17 – 23 % and delivers a long-lasting and cheerful high. Wedding Cake strain flowering period lasts for around 65 days and produces decent yields of about 1.5 – 1.6 oz/ft² (450 – 500 g/m²). This strain is moderate to cultivate but is naturally resistant to various diseases and pests.

Blue Dream

Blue Dream is a Sativa dominant strain that is highly sought after in America. This strain packs quite a punch as its THC content ranges between 16 and 20%, with 2% CBD. Growing Blue Dream indoor marijuana seeds requires patience because it grows slowly as it needs time to branch out in its early stages. The plants are tall and can hit 6 feet (180 cm) with high and healthy yields. Blue Dream is a favorite of mites, pests, mold and mildew; therefore, growing it indoor helps control humidity, facilitating the infestation.

Purple Kush Autoflower

Purple Kush Autoflower is a popular cannabis strain among cannabis lovers who love smoking this strain because of its potent high. It is got by crossing Hindu Kush and Purple Afghani.

It is straightforward to grow Purple Kush Autoflower weed seed indoors because it grows into hardy, medium-sized plants. This beautiful strain improves your garden aesthetics with its purple hues and unique aroma. Purple Kush flowering period lasts 56 – 63 days with a pretty decent yield of 1 oz/ft² (300 g/m²) when it is grown indoor.

Strawberry Cough

Strawberry Cough is a hybrid strain whose origin is marred by a lot of myths. Just like its name, expect your field to smell like strawberries. This Sativa dominant strain is pretty easy to cultivate and thrives in an indoor environment.

When you plant Strawberry Cough weed seeds indoors, the plants grow up to 3 feet (90 cm) and mature in 63 – 70 days. Strawberry Cough has sturdy branches to support the weight of the tight bud with a pine cone shape.

Legend OG

Legend OG is an Indica dominant strain with a woody and floral aroma. Although this strain does not have a well-documented origin, Legend OG was created by Swamp Boys Seeds. This is a high THC strain with THC ranging between 20 to 25%. It grows tall and is ideal for average growers and produces moderate yields.

Cement Shoes

If you want to cultivate potent indoor marijuana seeds, Cement Shoes is our best bet. Apart from a high THC content of 20 – 24 % and 1% CBD, this strain offers you a relaxed cerebral buzz and a heavy-bodied buzz that leaves you couch-locked. A three-way cross gets this strain between OG Kush, Animal Cookies 09, and Wet Dreams.

When you cultivate Cement Shoes weed seeds indoors, you get a 5 feet (150 cm) tall plant with a flowering period that lasts between 60 – 70 days. This Indica dominant strain produces high indoor yields of 1.3 to 1.6 oz/ft² (400 to 500 g/m²).

Indoor Seeds vs Outdoor Seeds, Which Is the Best?

Suppose you are new to marijuana and are wondering where to grow your indoor weed seeds. The seeds you choose to go with depends on your potential, the type of conditions it requires to thrive, and weather in your region. It is best to grow marijuana indoors because you can control your cannabis plant growth conditions. But with outdoor seeds, you have little to no control in case the weather changes.

Final Thoughts on Indoor Seeds

Indoor seeds are best when you live in a region where the weather often fluctuates, making it difficult for cannabis to thrive in an outdoor setting. If you are shopping for the indoor cannabis seed, look no further because we have a large selection of Indica and Sativa indoor seeds and this guide provides you with a list of the best marijuana seeds for growing indoors.

Cannabis seeds are sold to customers over the age of 21 and are sold strictly for souvenirs or storage purposes only. The cultivation and germination of cannabis seeds is illegal in most countries. We advise customers to check the laws in their country before ordering.

Indoor Seeds

Head-focused, creative, and physically energizing. Feel more alive than ever with this strain.

AK-47 delivers an energetic and uplifted cerebral-buzz that also can bring on alertness, creative and social enhancements and a general feeling of euphoria.

It’s energizing high is more likely to leave you wired than sleepy, so smoking shortly before bedtime is not recommended.

Hailing from the Hindu Kush mountain ranges near Afghanistan, this ancient strain has always been known for its deeply relaxing and sedating effects and aromatic, resinous buds.

Patchwork genetics produce a stimulating Sativa capable of skyrocketing thoughts and actions into the most spectacular of realms!

A high-yielding, fierce and fast flowering Sativa with spicy floral notes.

This easy to grow autoflowering strain yields 350 – 400g indoors and is extremely potent.

Amnesia like the name promises with get you lifted and forgetting all your woes. Award winning strain that can have strong cerebral effects – uplifting and mellow.

A strain as tasty and invigorating as a purple lemon!

Retaining the Diesel taste from its OG lineage along with the famous flavor of its Cheese parent. The strain for those wanting an uplifting and energetic high.

A bubblegum you can smoke and reach the high heavens with.

I like big buds, and I cannot lie. This baby got bud!

Fragrant and mouthwatering. Tease your palate with a burst of bubblegum.

Buy this strain for a potent, resinous plant that has an amazing fruity taste. You can enjoy 10 weeks from seed to harvest from this auto feminized strain.

This is a great strain to try if looking for an easy grow. This Indica is sure to cause long lasting relaxation with a mellow effect.

Auto Blue Fruit is a moderate THC Indica dominant hybrid with a blueberry pie bouquet!

Bruce Banner, but faster. Get high on your favorite strain with less fuss and more fun!

This automatic flowering Sativa provides a sweet slice of relaxation with a scoop of cognitive stimulation.

This perfectly blended hybrid is a favorite as it produces the stickiest dense buds. Plan for an average yield of 400-550 g/m2 indoors.

Smash negative thoughts out of your head with Bruce Banner x Kali Mist.

Expect a cerebral high with muscle relaxation, and relief of pain, migraines and hypertension.

A fun, euphoric, and energetic high lends to being effective any time of day.

A relatively short plant with high-yielding flowers will bud quickly and give you lots of relaxing, and appetite-stimulating effects. High doses will promote psychedelic effects, even sleepiness.

Resin coated buds grow close together but a high flower:leaf ratio means this plant is still very resistant to humidity.

This beautiful blend will grow tall with deliciously resinous buds and reward you with a well-balanced cerebral high and body relaxation.

Auto Critical 2.0 has next level moisture, disease, and pest resistance!

Boost your mood and mental faculties with this positively euphoric strain.

Expect a fast hitting, potent cerebral high typical of Sativa hybrids.

Cerebral high? Check. Fast-growing? Check. Healing effects of CBD? All checks across the board!

Auto Kush CBD Fem is a gentle and therapeutic auto flowering strain that provides psychedelic effects, sweet aromas, and moderate yields.

You can combine work with chilling out? Balance your life with CBD Kush.

A deliciously fruity strain tailor-made for the medical marijuana community.

When life gives you lemons, make lemonade. or just smoke some CBD Sour Lemon.

A Dutch coffee shop menu staple that has been enhanced with healthful CBD.

Relaxing yet euphoric. Wrap up your day with this highly delectable treat.

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Experience a therapeutic and highly relaxing journey like no other.

Experience intense relaxation and calm while luxuriating in the sweet vanilla scent.

A medicinal strain that is as glamorous as it is powerful.

The first few tokes treat you very sativa – happy and uplifted, then when the Indica creeps in later, you will find yourself searching for a couch to lean on!

CBD Diesel is the ultra-relaxing, stress-busting, treat-yo-self goodie you deserve.

Bippity boppity boo. Experience the magic of Cinderella99 faster than before, no spells needed!

Clear your schedule for the biggest and baddest nuggets you will ever encounter.

Expect to be hit with the head buzz within five minutes and enjoy its positive effects on stress and pain as it migrates to full body relaxation.

Mild THC levels offer a lighter high for daytime use, although you will still notice the effects both mentally and physically.

It will tolerate most environments as long as its friends and family tolerate the smell of putrid, smelly socks.

A safe bet for those who want to be certain to obtain a heavy yield.

Mentally stimulating with a touch of physical relaxation. Conquer the day with this strain.

Delight your senses with a sweet earthy smell. Envelope your body with deep relaxation.

Be in awe as your mental stimulation and sociability soar through the roof.

Stress-free nights with Auto Cream are sweet and sedating, infused with 19% THC.

The biggest buds you’ve ever laid eyes on, coupled with a heavenly stone.

The benefits of this cannabis strain are crystal-clear: outstanding aroma and euphoric relaxation.

This plant is very compact (60-80 cm) and easy to grow both indoors and outdoors.

Puts a smile on your face and a spring in your step.

This funky Skunk doused will make you want to welcome it into your home.

You don’t need a fairy godmother to get your hands on this chocolate orange cannabis.

Let the Widow wash away your anxiety and soothe your body.

She’s a royal flower who tastes like a fruity, mocha-drizzed truffle.

Supremely decadent with an intense cerebral buzz and relaxing aftermath.

A fruity tropical treat that can share branch-breaking yields.

This one creeps up on you with a full-body high that comes on like a wave.

Considered a fairly stable and reliable strain. Even if you grow multiple plants, you’ll generally find that their size, appearance and yields should be pretty similar across the board.

Big Devil XXL provides consistently large yields for an auto flowering strain and a few puffs will invite you to face your fears and share with your peers!

This bud is your panacea!

Bringing Skunk potency, heavy harvest, and easy to grow quality without the stink!

Eternally mysterious, but its potency will surely answer all of life’s questions.

Wake up to the greatness of two top-shelf crowd-pleasers today.

Creative, energetic, and focus-enhancing. Perfect for daytime use.

A recipe for double the flavor and double the fun.

Intensely fragrant and flavorful. Experience the glorious blend of cerebral uplift and profound body stone.

Tasty and wonderfully balanced. Perfect for your recreational and therapeutic needs.

Also knows as “Original Glue”, this powerful hybrid strain is created through crossing the infamous Chem’s Sister x Sour Dubb x Chocolate Diesel strains.

Like baking cookies, growing this strain is easy, but requires time and attention. Your childhood wishes have all finally came true: cookies now do grow on trees.

Proof that you can never have too much of a good thing.

Awesome gets awesomer with the combination of two cannabis classics.

The high is very uplifting, energizing, and happy although the user may get a sense of “brain-fog” when consumed in high levels.

What happened in Spain did not stay in Spain – luckily!

It has calming medicinal properties that relieve stress and pain, promoting a good night’s rest.

A medicinal marijuana masterpiece that delights with a tropical flavor.

A true cannabis classic.

Just like the full moon over the Hawaiian islands, mysteriously serene and unexpectedly exciting.

Named after the Cannabis activist Jack Herer, this strain will also keep you active! Very uplifting high prompting creativity and daydreaming.

Captures the cerebral stimulation of Sativas and the resin factory of Indicas.

Expect robust cerebral and euphoric effects, unlike any other.

Pros and cons of growing marijuana seeds indoors

Indoor marijuana seeds for sale are an attractive option for growers of all levels, but they’re not a one-size-fits all solution. There are advantages and disadvantages to consider before making an informed purchase decision.

Keeping your marijuana indoors provides security, shelter, and stealth. On the other hand, your plants remain small, and you don’t get to experience the extreme yields of outdoor giants.

In a nutshell, here are the benefits of growing the best indoor marijuana seeds :

  • Better control of all conditions
  • Easy protection from potential issues
  • Greater privacy and discretion
  • Perpetual harvest potential

Some people still choose outdoor setups, though. Here are the comparative disadvantages of indoor cultivation :

  • More expensive to set up
  • No access to real sunlight
  • Less microbial life

In a nutshell, indoor seeds take the gold if you can afford the investment . Let’s explore the perks in a bit more depth.

Save time with quick & easy harvests

Photoperiod cannabis crops in the great outdoors rely on changing the seasons to switch between its three life stages. As a result, the seed-to-harvest period usually takes over six months, from early spring to early fall.

Feminized indoor marijuana seeds develop into ripe crops in much less time. Flowering time is strain-dependent and should be respected, but you can half the vegetative stage .

This phase is when your crop produces branches and foliage, not buds and resin. Indoor growers can switch the lights for flowering after several weeks of vegging. That way, you get small plants without too many unnecessary branches.

A six-month life cycle is suddenly four months long , and there’s less trimming struggle along the way.

Combine this perk with our cannabis seeds for beginners , and your cultivation journey becomes a walk in the park.

Control your environment

Environmental optimization is the number one reason why many growers choose indoor seeds . Why use clones to ensure the best possible phenotype? Let each seed develop to perfection with a helping hand instead.

The outdoors brings unexpected waves of low light conditions and increased humidity, pests, disease, and other cultivation pitfalls.

It’s a different story inside. You’re in charge of the environment, letting you fine-tune the conditions. Get the right lamps, filtration systems, and nutrients for marijuana .

Use these modern tools to boost the bulk and quality of every future harvest .

Mimic the outdoor conditions, minus the bad stuff. Your rare tropical strain can easily thrive in a cold state—just up the heating and moisture. Those adaptable indica crops appreciate the lack of climate fluctuations, even if they technically could withstand them.

Never worry about infestations

Your outdoor garden is full of little bugs that find cannabis leaves a treat they can’t refuse. You could stay vigilant, plant companions in the surrounding soil, and install protections. Alternatively, keep your marijuana indoors and nip this problem in the bud .

A sealed and sterile grow room runs little risk of infestation. Even if something does slip through the cracks, the adverse effects are less severe.

Grow whenever and wherever you want

This selling point of best indoor marijuana seeds started with commercial growers but quickly spread to everybody else. Why smoke six-month-old buds when you can always have the freshest flower in your stash?

Growing cannabis inside doesn’t leave you dependent on the growing season . Sow in December and collect in March. Repeat two more times in a calendar year.

As a bonus, you don’t have to worry about nosy neighbors noticing your crop and giving you weird looks. Indoor setups let you forget all about a lack of garden space or proper shielding to keep it private.

Where to grow indoor weed seeds?

The stellar genomes of our indoor seeds make them suitable for various systems. As long as your space is clean, secure, and adaptable , you can choose whichever setup best fits your situation.

As a rule of thumb, seal the cultivation unit to prevent pests from harassing your crops. Install a ventilation system to provide fresh air to your budding plants. Get lamps to mimic outdoor sunlight—even indoor strains need light.

What growing arrangements are available? Our community goes for the following:

  • Closets are convenient but far from optimal. Opening and closing the doors can disrupt the light cycle, and the air gets stuffy. Stick to one plant if closet-growing.
  • Space buckets fit a single plant but provide a stable growing environment. Pick a short indoor strain for the purpose. The same rules apply as with closets, but the results tend to be much better.
  • Grow tents can hold anywhere between two and ten indoor plants. These neat devices promise excellent light distribution and protection.
  • Grow boxes are an alternative to a tent you make at home. Choose a sturdy wood or metal base and reflective material with a zipper for the insides.
  • Windowsills are excellent for tiny crops, but they reduce harvest potential. Supplement lights with LEDs and introduce temperature control to improve this setup.
  • Grow rooms are the top choice for dedicated cultivators. Having an entire chamber for your indoor marijuana seed -grown crops eliminates the downsides you’d face with other options.

The best indoor cannabis seeds

The variety of best marijuana seeds for growing indoors is massive. You might choose something unique every year and never run out of new options to explore.

We at i49 offer a comprehensive array of indoor cannabis seeds for sale . Indica, sativa, THC, CBD, beginner-friendly, or advanced —our seed bank has your back.

Find the best indoor marijuana seeds at the i49 library. If it’s hard to choose by yourself, here are five of our favorites :

    is a gorgeous sativa that delivers an uplifting cerebral buzz. This strain is susceptible to pests outdoors, but indoor conditions bring out its fast-flowering, high-yielding nature.
    is fragrant and relaxing, melting you into your seat with each piquant puff. Crops from these indoor seeds remain tiny, easily fitting restricted growing spaces. They thrive in controlled conditions, producing rivers of resin.
    is the cultivar for every physical and psychological need. This hybrid displays a mixed growth pattern, with short stature and large internodes. Its build makes it perfect for tiny spaces, where yields surpass all expectations.
    is an aromatic herb with a mild yet feel-good effect profile. Its short life cycle makes it best suited for stable indoor environments, where nothing can mess with its harvest.
    is the pinnacle of landraces that promises a profound cerebral experience. The auto version of these indoor marijuana seeds remains compact, each lanky branch brimming with beautiful buds.

Where can I buy high-yielding indoor marijuana seeds?

Are you ready to buy indoor marijuana seeds and get growing? Look no further than i49 USA.

Our library contains a vast selection of feminized seeds and autoflower cannabis seeds for your next growing adventure. You’ll find strains for beginners and some that put your green thumb to the test. We stock indica and sativa to cater to all smoking preferences.

We’ve been in the business for decades, and the quality of our indoor marijuana seeds for sale proves our reliability. Purchase from us for a germination guarantee, only female genetics in our feminized seeds, timely worldwide shipping, and discreet deliveries.

Browse our online shopping platform and discover a cultivar for your every need. Finding the best indoor cannabis seeds is as easy as clicking the ‘indoor’ option on the side menu.

When you run into indoor marijuana seeds that tickle your fancy, learn all about them with our educational resources. You’ll find descriptions, images, tips, tricks, and real grower reviews.

Order now and stay confident in your decision with a dependable seed bank in your corner. Take advantage of our secure payment methods and have your package delivered right to your doorstep . Grow cannabis at home and keep coming back for more.

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