Indoor Cannabis Seeds


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Although it is possible to cultivate all types of cannabis in a growroom, these indoor Cannabis seeds are particularly recommended for indoor growing. Choosing which indoor cannabis seeds to opt for can be complicated. Seedsman has the largest selection of indoor cannabis seeds available online. Our indoor cannabis seeds are among the best in the business. With decades of experience, you can expect the best quality results and an easy grow.

Indoor Cannabis Seeds

Although it is possible to cultivate all types of cannabis in a growroom, this category of indoor cannabis seeds refers to strains that are particularly recommended for indoor growing.

Why should I grow indoor cannabis seeds?

Growing cannabis indoors is the best way to ensure a completely stable cultivation environment, where each element (light, heat, air, nutrition, and water) is determined by the grower. At absolutely no time in the growing process are indoor gardeners dependent on outside weather and climate conditions.


Although it is possible to cultivate all types of cannabis in a growroom, this category of indoor cannabis seeds refers to strains that are particularly recommended for indoor growing.

Why should I grow indoor cannabis seeds?

Growing cannabis indoors is the best way to ensure a completely stable cultivation environment, where each element (light, heat, air, nutrition, and water) is determined by the grower. At absolutely no time in the growing process are indoor gardeners dependent on outside weather and climate conditions. Indoor cannabis growing is easily achievable throughout the whole year! Deciding which Indoor Cannabis Seeds to buy is the vital first step of the process. Sensi Seeds and White Label Seeds offer some true classics in this section, including multiple award winners, all of which are recommended for growing cannabis inside. A variety of exceptional and world famous strains, with something to suit every taste and budget, complete our selection of cannabis varieties for indoor cultivation.

Choosing the right cannabis seeds for growing inside

Firstly, what do you like? Sativa for an active high, Indica for a relaxing stone, a hybrid for the best of both worlds? There are cannabis varieties here to suit all preferences and budgets. Secondly, what kind of space would they be growing in? Do you have a lot of ceiling height but limited floor space, or vice versa? Check the potential height guidelines listed with each seed strain. Thirdly, how much experience do you have? Some types are particularly recommended for beginners (these are marked as such); others need the hands of a more seasoned gardener to really bring out their best.

When choosing an indoor strain, it is not necessary to filter the results by your local climate. Because indoor growing relies on a suitable growing environment inside, the outside conditions will not affect the choice of strain. In a sufficiently warm, sunny environment (by which we mean a sunny/Mediterranean and temperate/continental climate), all cannabis strains can be grown outdoors, including those recommended as Indoor Cannabis Seeds. Check your climate on our handy map to see which seeds are suitable for you.

Indoor cannabis strain characteristics

This category offers a wide range of regular, feminized and autoflowering cannabis seeds, all of which are eminently suitable for successful indoor growing.

Most of the cannabis strains listed in this category deliver compact or average height plants. However, for those with an indoor grow space that allows for it, there is a splendid selection of seed types that will deliver tall plants.
Our indoor cannabis seeds section also offers a broad spectrum of strains with a short or average flowering time, for those that are in a hurry. Should the grower prioritize yield or strength over speed, our indoor strains with a longer blooming period offer these desirable qualities.

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In terms of yield, in fact, this section has it all, from medium to XXL yields. You decide, we deliver. The same principle applies to the price range. Choose from exceptional strains for every budget, from perennial beginners’ favourite White Label White Skunk (€16 for ten seeds) to exclusive premium legend Jack Herer® (the authentic original, €150 for ten seeds).

Whether you prefer a relaxing Indica or uplifting Sativa, a chunky Skunk or a soaring Haze, the choice is extensive. And, if you can’t decide which way to go, the hybrid seeds in this collection can offer the best of both worlds.

To help you narrow down which strains are most suitable for your wishes, simply use the filters on the left hand side to view all available cannabis varieties sorted by regular, feminized or autoflowering strains, Seed Bank, price, yield, plant height, flowering time and Indica/Sativa balance. The indoor cannabis strains that have won awards (including Cannabis Cups) are marked with a small icon for easy recognition.

Reliable quality and first class customer service

Over thirty years of cannabis research and development have made Sensi Seeds the number one seed bank to rely on. You can be absolutely sure that you are purchasing high quality indoor seeds, the result of carefully calibrated breeding programs that have taken many years to complete. Numerous seeds listed here have won Cannabis Cups and other harvest festival awards. Most importantly, you are guaranteed to get the breed that made the name famous. When it comes to indoor cannabis seeds, do not settle for anything less!

Not only our range of high quality indoor cannabis seeds, but also our customer service, is second to none. You can rely on our experienced and dedicated customer care team, who are reachable via email, phone and social media, to help you with enquiries.

Best Indoor Seeds

In legal territories, cultivating cannabis indoors is popular due to better control of the elements. Controlling the light, humidity and temperature can incur excellent results. However, choosing which indoor seeds to opt for can be complicated with the abundant indoor seeds available on the market. Most growers base their decision upon factors including but not limited to flowering time, yields per m², effects, and tastes.

Use our handy filter on the left-hand side to source the best indoor cannabis seeds for sale online, tailored precisely to your needs.

Indoor Seeds

Indoor cannabis seeds remain one of the most popular ways to grow high quality, high potency cannabis. Growing indoors, with a fully controlled and optimised environment, allows the indoor cannabis seeds to reach full potential. Expect the highest THC levels and heavy harvests along with superb aroma and flavour. Our indoor cannabis seed collection contains some of the most popular feminised seeds and autoflower seeds.

Active filters

Auto Orange Bud®

Orange Bud X Auto Daiquiri Lime

Auto Lemon Kix®

Las Vegas Lemon Skunk Autoflower

Auto Blackberry Kush®

Blueberry X Dark hash-plant

Passion Fruit®

Sweet Pink Grapefruit X Orange Bud

Orange Bud®

Original Orange Bud

Strawberry Cough®

Original Strawberry Cough

CBD Auto Blackberry Kush®

CBD Charlotte’s Angel X Auto Blackberry Kush

Auto Mokum’s Tulip®

Mokum’s Tulip x Auto Colorado Cookies

Skywalker Haze®

Original Skywalker x Amsterdam Amnesia

Auto Skywalker Haze®

Skywalker Haze x Auto Amsterdam Amnesia

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Amsterdam Amnesia®

Amsterdam Amnesia


Wedding Cake X Animal Cookies

Sugar Bomb Punch®

THC Bomb X (Critical Orange Punch x Bubba Island Kush)

Power Plant®

Original South African Power Plant

Auto Cinderella Jack®

(Cinderella 99 X Jack Herer) X Magnum

Auto Think Different

AK420 Autoflower

Trial Pack Autoflower

Trial Pack Autoflower

Trial Pack Feminised

Trial Pack Feminised

What are indoor cannabis seeds?

Indoor cannabis seeds can be germinated and grown into plants which produce cannabis buds. Good quality indoor cannabis seeds are easier to grow than ever and deliver heavy harvests rich in THC, or any other cannabinoid you prefer such as CBD, CBG, CBDV, THCV etc. Most growers choose either autoflowering cannabis seeds or traditional photoperiod seeds. But some old school growers (or those wanting to produce their own crosses) can also grow regular photoperiod cannabis seeds.

Buy indoor cannabis seeds online

Autoflower seeds take around 10-11 weeks to grow indoors. Usually they are grown under 20 hours of daily light from seed to harvest. Quality levels from the best autoflower seeds are as good as photoperiod feminised seeds and many growers feel that autoflower seeds are easier/faster to grow.

Photo-dependent feminised seeds don’t start blooming until light hours are reduced to 12 per day. Whether you choose autoflower indoor seeds or photoperiod indoor cannabis seeds you can expect high quality harvests.

Best indoor feminised cannabis seeds

There has never been such a wide choice of indoor feminised cannabis seeds. Recent introductions with USA genetics have increased the diversity and quality levels on offer. Here are three of the top Dutch Passion feminised cannabis seeds.

Sugar Bomb Punch

Sugar Bomb Punch seeds are a proud member of the elite Dutch Passion Extremely High THC cannabis seeds collection. These can produce THC levels around 25% in optimum conditions. Indoor feminised cannabis seeds simply don’t come much stronger than Sugar Bomb Punch! The indica genetics take around 9 weeks to complete bloom and are part of the USA Special cannabis seed collection.

Amsterdam Amnesia

Amsterdam Amnesia seeds use the best Amnesia genetics you can get, Amsterdam Amnesia! With very high THC levels and the classic Amnesia effects this is a strain that should be in everyone’s seed collection. With famously high yields of frosty and mind-numbingly potent sativa buds Amsterdam Amnesia is a classic indoor feminised cannabis seed that you simply shouldn’t miss out on!

Skywalker Haze

If you’re looking for a sativa strain with very high THC levels, a bloom time of around 9 weeks and a classic soaring Haze high with powerful cerebral effects then look no further. Skywalker Haze feminised cannabis seeds are exactly what you are looking for!

Best indoor autoflower cannabis seeds

Autoflowering cannabis seeds have become the go-to genetics for any grower seeking a fast, heavy, high quality harvest with an easy grow experience. Dutch Passion are proud to have been one of the original autoflower seed pioneers and have collected numerous cannabis cups and awards for their autoflower seeds. Here are 3 top recommendations:

Auto Skywalker Haze

Fans of sativa indoor autoflower cannabis seeds will love Auto Skywalker Haze. With very high THC levels autoflower seeds don’t get much stronger. The Haze genetics mean that Auto Skywalker Haze can take up to 12 weeks from seed to harvest. That’s a couple of weeks longer than other autos, but the wait is worth it for the XL yields of powerfully relaxing buds.

Auto Cinderella Jack

If you’re looking for the strongest possible indoor autoflower cannabis seeds then you need Auto Cinderella Jack. With THC levels officially (and independently!) recorded at over 25% this could be the worlds strongest autoflower seed. Heavy yielding with a long lasting and supremely powerful effect. Only suitable for those that can take the very strongest buds!

See also  Cannabis Seeds Canada

Auto Lemon Kix

Auto Lemon Kix has to be one of the most delicious tasting strains from recent years, with a sweet candied fruit aroma and an equally mouthwatering taste. These indoor autoflower cannabis seeds are a member of the exclusive Extremely High THC cannabis seed selection.

Best indoor regular cannabis seeds

Indoor regular cannabis seeds give rise to approximately equal numbers of male and female offspring. Regular cannabis seeds can be used to produce your own hybrids/crosses from male and female plants.


Mazar is a legendary original member of the Dutch Passion Afghani Kush seed collection. With a powerful indica effect and dense, sticky THC loaded buds it remains a favourite with growers around the world many years after she was first released. Also available in feminised seeds and autoflower seeds.


Blueberry seeds need no introduction. A multiple cannabis cup winner and legendary founding member of the Blue Family of cannabis seeds. Blueberry seeds produce plants with very high THC levels and a uniquely smooth and relaxing connoisseur high. Some people grow nothing else! Also available in autoflowering seeds and feminised cannabis seeds.

Orange Bud

Orange Bud is a sativa variety which can be ready after just 7-8 weeks of bloom. The buds have a refreshing taste of freshly picked oranges and a strong citrus aroma. This delicious package is completed with a famously powerful and enjoyable high. Due to customer demand, Orange Bud is also available in autoflower seeds and feminised seeds.

What makes a cannabis strain indoor or outdoor?

Some indoor cannabis strains can’t be grown outdoors at all latitudes. They may lack the genetics to give them sufficient weather resistance at your latitude. Or they may simply take too long to finish outdoors in temperate climates.

Dutch outdoor cannabis strains have been selectively bred over many generations to withstand outdoor cultivation at Dutch latitudes.

When to start indoor cannabis seeds?

It’s up to you! The beauty of indoor cannabis seeds is that you create the optimised grow environment indoors. So long as good indoor grow conditions are maintained you can grow your indoor cannabis seeds at any time of the year, or even all year round!

What do you need for indoor cannabis seeds growing?

You need grow lights, a carbon filter, extraction fans, a grow medium/grow system, nutrients and a few other devices perhaps (thermometer, humidity meter, pH meter). You can buy the equipment easily online or in a grow shop. You will also need some quality cannabis seeds from a proven supplier!

What is the average flowering time of indoor cannabis strains?

Typically around 8-10 weeks bloom time for indoor feminised cannabis seeds, though some Haze strains can take up to 14 weeks. Autoflower seeds grow from seed to harvest in around 10-11 weeks.

What is the average yield of indoor cannabis seeds?

There are so many factors that it’s hard to give an average yield. Light type, grow method, skill level, cannabis genetics all have a huge impact. Many growers aim for around 75g-100g per indoor plant. But inexperienced growers may get less, and professional growers could get much more.

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