Indoor Cannabis Seeds

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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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Grandmommy Purple Feminized Seeds From Herbies Seeds
Grandmommy Purple (Herbies Seeds) THC 30 %
(1)
Top New
  • Herbies Seeds
  • Feminized
  • Photoperiod
  • 40 - 140 cm
  • 400 - 500 g/m² indoors
    450 - 550 g/plant outdoors
5.84 €
Mimosa X Orange Punch Feminized Seeds (Barneys Farm)
Mimosa x Orange Punch (Barney's Farm) THC 30 %
(5)
Top New
  • Barney's Farm
  • Feminized
  • Photoperiod
  • 70 - 80 cm indoors
    150 - 180 cm outdoors
  • 700 g/m² indoors
    1500 g/plant outdoors
11.3 €
Cafe Racer feminized seeds for sale
Cafe Racer (BlimBurn Seeds) THC 25 - 35 %
(4)
  • Blimburn Seeds
  • Feminized
  • Photoperiod
  • 70 - 100 cm
  • 450 g/m² indoors
    600 g/plant outdoors
7.63 €
Buy Grandaddy Purple feminized seeds
Grandaddy Purple (BlimBurn Seeds) THC 25 - 35 %
(9)
Top
  • Blimburn Seeds
  • Feminized
  • Photoperiod
  • 500 g/m² indoors
    450 - 500 g/plant outdoors
7.63 €
Runtz Punch Feminized Seeds from Herbies Seeds
Runtz Punch (Herbies Seeds) THC 29 %
(0)
New
  • Herbies Seeds
  • Feminized
  • Photoperiod
  • 90 - 120 cm indoors
    140 - 190 cm outdoors
  • 500 - 600 g/m² indoors
    800 - 1000 g/plant outdoors
8.96 €
Godzilla Glue #4 Feminized Seeds From Herbies Seeds
Godzilla Glue #4 (Herbies Seeds) THC 29 %
(0)
New
  • Herbies Seeds
  • Feminized
  • Photoperiod
  • 90 - 150 cm indoors
    110 - 170 cm outdoors
  • 600 - 800 g/m² indoors
    800 - 1200 g/plant outdoors
6.29 €
Runtz Muffin feminized seeds (Barney's Farm)
Runtz Muffin (Barney's Farm) THC 29 %
(11)
Top
  • Barney's Farm
  • Feminized
  • Photoperiod
  • 100 - 120 cm indoors
    150 - 200 cm outdoors
  • 550 - 600 g/m² indoors
    1000 g/plant outdoors
11.2 €
Banana Sherbet feminized seeds (Original Sensible seeds)
Banana Sherbet (Original Sensible Seeds) THC 28 %
(0)
New
  • Original Sensible Seeds
  • Feminized
  • Photoperiod
  • 600 g/m² indoors
    700 g/plant outdoors
6.8 €
Blue Sunset Sherbert Feminized Seeds (Barney’s Farm)
Blue Sunset Sherbert (Barney's Farm) THC 28 %
(2)
New
  • Barney's Farm
  • Feminized
  • Photoperiod
  • 80 cm indoors
    150 - 200 cm outdoors
  • 650 - 700 g/m² indoors
    1000 g/plant outdoors
10.5 €
Wedding Cookies seeds for slae
Wedding Cookies (Original Sensible Seeds) THC 28 %
(2)
Extra Seeds
  • Original Sensible Seeds
  • Feminized
  • Photoperiod
  • 700 g/m² indoors
    800 g/plant outdoors
6.8 €
Runtz Gum seeds for slae
Runtz Gum (Original Sensible Seeds) THC 28 %
(3)
Extra Seeds
  • Original Sensible Seeds
  • Feminized
  • Photoperiod
  • 700 g/m² indoors
    1000 g/plant outdoors
6.8 €
Cookies Gelato (RQS)
Cookies Gelato (RQS) THC 28 %
(7)
Top 1+1
  • Royal Queen Seeds
  • Feminized
  • Photoperiod
  • 90 - 130 cm indoors
    140 - 180 cm outdoors
  • 550 - 600 g/m² indoors
    600 - 650 g/plant outdoors
8.5 €
Do-Si-Dos OG
Do-Si-Dos OG (Original Sensible Seeds) THC 28 %
(5)
Extra Seeds
  • Original Sensible Seeds
  • Feminized
  • Photoperiod
  • 600 g/m² indoors
    800 g/plant outdoors
6.8 €
Girl Scout Cookies feminized seeds
Girl Scout Cookies (Garden Of Green Seeds) THC 28 %
(4)
Top Extra Seeds
  • Garden of Green Seeds
  • Feminized
  • Photoperiod
  • 450 g/m² indoors
7 €
Buy Gorilla Glue #4 feminized seeds (Original Sensible Seeds)
Gorilla Glue #4 (Original Sensible Seeds) THC 28 %
(7)
Top Extra Seeds
  • Original Sensible Seeds
  • Feminized
  • Photoperiod
  • 100 - 160 cm indoors
    120 - 180 cm outdoors
  • 800 g/m² indoors
    1000 g/plant outdoors
7.4 €

Buy Indoor Cannabis 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.

Indoor Weed Seeds: Cultivation Stages

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 indoor marijuana seeds collection are not too large in size and stay discreet, compact, and manageable throughout the entire grow.

Feminized Indoor Cannabis Seeds are the Best Choice

If you take a look at our collection of the best indoor marijuana seeds, 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 indoor 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.