Indoor Cannabis Seeds

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Best indoor marijuana seeds for sale that will suit any taste. Mouthwatering flavors, mind-blowing happy effects, and potencies that go beyond 30% – all bred to thrive in indoor conditions. Shop now and receive extra indoor cannabis seeds for free! 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

Here we’ve gathered the best indoor cannabis seeds that were created specifically for cultivation in grow rooms under artificial light. When picking a strain to add to your indoor grow, you’ll be spoiled with choice with our wide range of high-quality strains on offer. This collection of indoor cannabis seeds is perfect for those looking to expand their indoor garden into a jungle full of resilient, tasty cannabis with THC levels of up to 30% and beyond.

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Indoor Marijuana Seeds

In this collection of the best cannabis seeds for indoor growing, you can find all our picks for cultivating in grow rooms and grow boxes, on windowsills, and in other areas with limited space and artificial light. All strains have been chosen for their ease of growth and manageable sizes that don’t lessen the quality of the crop.

Weed Seeds For Indoor Growing

Cultivating cannabis indoors requires the grower to have not only a lot of patience, but also some equipment. For those who are just taking their first steps in indoor growing, this rewarding activity will require an initial investment to cover the cost of lamps, soil, fertilizers, electricity, and so on. In addition, even before you get yourself some indoor weed seeds, you need to carefully read the basic rules of growing indoor seeds, gradually accumulating the necessary information and clarifying various nuances, which over time will certainly appear.

After you decide on the indoor marijuana seed you want to grow, which is easy to do with the large range at our online store, you’ll need to be ready for the growing process. First, indoor marijuana seeds are germinated and then placed in a soil mixture. The next stage is the emergence of seedlings. The seedlings from the weed seeds for indoor growing should be kept in a moist environment and under constant light until the first two pairs of leaves appear. Once between 3-4 internodes of leaves are fully formed, the vegetative phase begins, during which time the green mass and root system are actively built up. That’s how you’ll start your weed seeds indoor.

Then comes the flowering phase which, even if you choose fast-growing indoor cannabis seeds, will last the longest. During this period of plant development, buds appear and develop, so it’s necessary to feed the plant regularly and monitor its health.

The final phase of indoor cannabis development is maturation, during which big fan leaves start to wilt and the color of the hairs on the buds changes, as well as the color of the resin-filled trichomes. After this, you can start harvesting.

The Benefits of Growing Cannabis Indoors

The indoor environment is believed to be the future of marijuana cultivation, and it’s difficult to argue with this for purely practical reasons. Indoor cultivation appeals primarily to those who don’t have a piece of land to grow on, but the benefits of the best indoor seeds don’t end there. They include:

  • Microclimate control – the grower can adjust lights, temperature, and humidity independently, all while the plants are protected from the elements.
  • Growth control – growing weed seeds indoors allows you not only to control when flowering comes, but also speed up bud growth by increasing the CO2 concentration.
  • Better pest control – indoors, there are fewer diseases and pests that can ruin your crop.
  • Various media for growing – besides soil, you can also grow in hydroponics or soilless media.
  • Multiple harvests a year – possible thanks to microclimate control, irrigation, and lighting systems.
  • Compact and discreet – plants from the best marijuana seeds for growing inside collection are not too large in size and stay discreet, compact, and manageable throughout the entire grow.
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Feminized Indoor Cannabis Seeds are the Best Choice

If you take a look at our collection of the best marijuana seeds for indoor growing, you’ll find that almost every single one of these strains is feminized. This is very important, because if a tightly packed grow room contains a male plant, it’s guaranteed to pollinate the rest of the plants at the start of the flowering process, ruining the quality of the crop completely.

Even if you notice a “saboteur” in time, its removal can cause certain difficulties, because you’ll inevitably have to shake the bush. At this point, its seed sacs may open and, again, pollinate female plants around it. Feminized indoor cannabis seeds can help you avoid this problem because there’s a 99% chance that only female plants will grow from these.

Autoflowering or Photoperiod for Indoors?

There is no universal answer to this question. If you want to get a harvest as quickly as possible and without putting too much effort into growing indoor, autoflowering cannabis seeds will be the perfect choice for you. In this case, you can simply plant the germinated seed in the pot, keep it under a lot of light, and water them in time. When growing indoors, autoflowering cannabis seeds don’t require training or large amounts of nutrients. After an average of 2 months, you’re almost guaranteed to get 30-50 grams of buds per bush.

However, if you’re the kind of person who’s not afraid to experiment, wanting to squeeze out the maximum potential inherent in the genetics of the best indoor weed, you’ll probably want to opt for a photoperiodic variety. Unlike autoflowering strains, it will tolerate any yield-boosting techniques and big amounts of fertilizer.

To summarize, indoor autoflowering cannabis seeds yield less, but will do so about twice as fast as photoperiods. On the other hand, photoperiod seeds produce more buds, but will take more time and effort. Either way, you’ll find both varieties in our collection.

Sativa or Indica for Best Indoor Weed?

When it comes to pure 100% Sativa varieties, you can safely say that these in no way make the best indoor strains. A medium-sized grow room simply won’t have enough space to grow a Sativa plant, which can reach up to 3-4 meters (9’10”-13’1”) in height when unrestricted. A good Indica, on the other hand, with an average maximum height of about 1.5 meters (4’9”), is hands down the best indoor seed option.

The good news is that there are no landrace Sativas in this collection; however, there are some excellent hybrids that have been bred and stabilized over the years specifically for growing cannabis indoors. This allows you to focus solely on the effects, THC concentration, and flavor you want, not the phenotype. In our collection, you’ll find the best cannabis seeds for indoor growing to suit every taste.

Indoor Cannabis Seeds for Sale at Herbies

Our collection of indoor weed seeds for sale is well-suited for growers who don’t want to spend hours looking through seedbanks and reviews to find their next indoor strain. Let us do the work for you! Scroll through the collection, choose between flavors, potencies, and effects, and find indoor weed seeds to suit your grow room and preferences. And of course, on top of your order, you’ll receive free seeds from Herbies that are top-notch and likewise suited for indoor growth.

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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.

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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

Amsterdam Amnesia®

Amsterdam Amnesia

Meringue®

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:

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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!

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

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

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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