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best marijuana seeds to grow indoors

Last, but not least… Power Plant feminized seeds. You probably won’t find the Power Plant seeds in a Top 5 ‘indoor cannabis seeds’, but from our own experience we can honestly say that this is one of the best indoor cannabis plants. This marijuana seed has all the characteristics that an indoor grower wants. It features a relatively short flowering time of 8 to 9 weeks, an extremely high mould resistance, easy to grow, a short plant height (max. 90cm) and a yield of up to 550 grams per m2. Doesn’t this plant have any disadvantages? Hardly, it requires some knowledge of scrogging to control the plant height. But once you know how to do this, it is very simple. In short: what more do you want?

Our Critical feminized seeds are probably one of the best cannabis seeds to grow indoors. And not without reason. Critical is very suitable for extremely small spaces as they do not grow larger than 80 cm. The strain is easy to grow, features a very short flowering time and yields are quite big. When pruned at the bottom, the buds grow at the top. In this way it is possible to place up to 16 plants per m2 which can result in a yield of up to 500 grams per m2.

So what are the best strains to grow indoors? With this article we are going to help you make your personal choice by putting together a top 5 best cannabis seeds for indoor. By the way, do you want to know how to grow weed indoors? Make use of our step-by-step plan ‘Growing weed indoors‘.

Power Plant feminized seeds

Many experienced growers will not be surprised that we have included Northern Lights in this top 5. Northern Lights cannabis seeds are easy to grow. The yields from this plant can reach as much as 550 grams per m2 in a very short flowering period of just 7 to 8 weeks! That’s what we call super seeds. Moreover, the taste is appreciated by almost every cannabis lover. Haven’t tried Northern Lights yet? Then we advise you to do so!

The AK-47 autoflower is one of our favourite classic strains and one of the best indoor cannabis seeds. The AK 47 autoflower is second in this top 5, but actually deserves a shared first place. Thanks to its genetics (Thai Skunk, Mexican Sativa and Afghan) the AK 47 autoflower is known for its extremely high fungal resistance and high yield. Yield can be as big as 675 grams per m2(!). The genetics are very stable and easy to grow indoors. A failed harvest is therefore almost impossible.

Based on our experiences and customer reactions, we have drawn up a top 5 of indoor cannabis seeds. We have taken into account ease of cultivation and weed quality.

Amnesia Haze is another classic strain and couldn’t be missing in our top 5 best indoor cannabis strains. The strain is worldwide known because of its very high THC level. Thanks to its properties Amnesia Haze is very suitable for indoor cultivation. The only “drawback” we can think of is the relatively long flowering time of 10 to 12 weeks. However, every disadvantage has its advantage. Due to the long flowering period the weed is extremely strong, the yields can reach 650 grams per m2 and both the taste and the smell are sublime. Keep this in mind, because if you’re sensitive to psychosis, it’s better to skip these weed seeds and opt for milder ones.

Towering sativa strains have the potential to surge to heights of 300cm. Growers can limit vertical growth by planting them in small containers, but they won’t produce as good of a yield as strains specifically bred for indoor cultivation.

Our Northern Light strain descends from a premium cutting and features a completely pure indica genetic profile. Her bushy growth and medium size make her an ideal candidate for indoor cultivation.

After reducing the light cycle and triggering flowering, Northern Light will produce a canopy full of mature flowers in 8–9 weeks. Her dense flowers possess a respectable THC content of 18% alongside a complex palette of citrusy, earthy, fruity, and peppery terpenes.

Are All Weed Strains Suitable for Indoor Grows?

Growing cannabis indoors also helps weed lovers keep their herbal interest to themselves. Indoor grow tents with carbon filters will eliminate the stink and dramatically reduce the chances of facing any penalties.

Fortunately, breeders have tinkered with cannabis genetics to create varieties that are ideal for indoor growing. These plants remain short, and are easy to manage and train. They’re suitable for small grow tents, and some cultivators even go to the extremes of raising them in refurbished computer towers and cupboards for added stealth.

Indoor growing makes life easier for many cannabis cultivators. If you live in a cold climate with bad weather, or your garden lacks direct sunlight, indoor grow tents provide a safe haven. The ability to manipulate the light schedule, humidity, and nutrients with precision allows growers to raise weed on their own terms.

Technically, yes. All strains can be grown indoors—although some varieties are much more suited to this environment than others. Bushy indica and autoflowering strains rarely exceed 120cm in height, and are thus naturally compatible with small spaces.

Power Plant by Dutch Passion is a strain that’s available in both feminized and regular seeds; it gives some nice looking plants with some even nicer smoke. It leaves a strong sweet cannabis smell, and although it’s a complete sativa it grows like an indica in shape and speed. When it’s in the veg stage you can’t really tell that it’s a sativa at all, but when it begins flowering it acquires a lighter color and it turns into a mass of white, sticky pistils that will make the plant practically shine. It takes around 9-10 weeks to flower after flipping the lights, and its buds are long, hard and sticky, similar to Critical +. If you plant this strain it will most likely turn into one of your favorite strains to grow indoors. Even though it’s a sativa you can easily fit 9 plants per square meter thanks to its compact height.

Sweet Seeds offers us one of the most powerful cerebral effects that I have ever experienced; Green Poison will leave you in an amazingly stoned mental state. This strain grows tall, with long branches, so they’re perfect for growing from clones in a SOG set up to get the most weight out of the yield. Grown from seeds this strain takes up a lot of space for the amount of cannabis it produces, and the lower branches never fully develop as the light can’t reach them properly. What you’ll need to do is place 4 plants per square meter, and if you correctly prune the branches you can get absolute balls of bud that, if grown using the SOG system, can reward growers with up to 600g per square meter. The buds are resinous and spongy like chewing gum; it takes a while for them to dry. Once they’re dry and cured you’ll have some maximum potency buds in your possession, with a strong effect and some Diesel like flavors.

Somango #47 is a strain for all of those unfortunate growers who tend to have horrible powdery mildew issues in theyr grows. When you plant Somango #47 by Positronics you can rest assured that this plant won’t get any mildew even if it’s surrounded by plants that have it. It grows with wide leaves and a strong trunk, with some long branches that reach the top of the plant quite quickly, and both the central cola and the branches are extremely productive. You can place 16 plants straight into 12/12 to grow out that nice central stem, or you can clone it and use a SOG to get the most weight in yield possible. Either way, you can stop worrying about fungi with this strain. It will take around 70 days to flower, rewarding patient growers with an amazing, top quality yield. It has both an earthy and sweet taste, similar to Cream Caramel.

Power Plant :

This is another strain that won’t disappoint if planted correctly and taken care off. Northern Lights by Sensi Seeds is a plant that, unlike the previous ones, concentrates most of its production on the branches. Don’t place too many plants; 9 per square meter under a 600w light should be more than enough to get a decent yield, and even four properly pruned plants are enough to get 500g per square meter. It takes a while for the growth to really catch on, but once it starts it won’t stop. If you prune it, you’ll need to switch it to flowering after two weeks even if it seems small. It will grow long, amazing buds on the branches that are dense and covered in resin. The flavor is earthy, and enough to satiate even the toughest of smokers. The smoke is dense and will fill your mouth with amazing flavors. You should have your harvest ready in just 9 flowering weeks.

Melon Gum is a strain by Dr. Underground that offers extremely flavorful buds in a short flowering period. At the beginning this plant grows extremely similar to lettuce, with wide leaves and round, although as the grow advances they grow some more and start looking more like cannabis. You can plant around 9-16 in a 1.2×1.2 grow tent. To get the most out of this strain you should prune the lower branches and leave just the central stem and 4-6 branches below it to be able to plant all 16 in the allotted space. It begins flowering at around two weeks after switching the light period, and in just 7 weeks your plant will be ready to harvest. It has quite a relaxing effect and its colors are eye-catching towards the end of the flowering period. You’ll be able to see the resin from a distance on these plants’ buds and even all over the bigger leaves, making it perfect for extracts that are amazing in both quality and flavor. The buds on this plant are dense and hard; everyone should try this strain at least once.

This is most likely the most planted in indoor grows, mostly due to the amazing yield that it gives in extremely small spaces. This plant concentrates all of its production on the upper part. You can plant around 16 Critical + per square meter, but you’ll need to properly prune the lower branches so that the main stem can produce more buds. When growing it doesn’t seem like it’s going to grow that tall, but when switched to the flowering period it rapidly stretches, growing up to 4 times bigger, so you’ll need to use stakes or wires to make sure it doesn’t double over with the weight of the buds on top. They grow to around 1.2m tall when they’re done, and you can get 550g from just one square meter of grow with the 16 plants we mentioned before. You can also plant clones and set them directly to flower in this formation. It has a citric flavor, and a little bit of this weed goes a long way. The only downside to this strain is that because so many people plant it, people have gotten kind of bored of it.

Tutankhamon by Pyramid Seeds is a selection of AK47’s that has amazing flowering power; however the flavor is nothing like the original. When it grows it grows wide and strong right from the start, and when you switch it to the flowering lights it stays nice and short, so there’s no need to top it. This strain should produce enough with just 4 plants per square meter (due to how wide it is). Each plant should easily reach 80g, and if you put your back into it you can get even more. It takes 9-10 weeks to flower, and it has an amazing quantity of resin that leaves the buds nice and shiny. This is one of my personal favorites.