Cannabis Seed StrainFinder: Find the Right Seeds for Your Grow
Use Nirvana’s StrainFinder to match cannabis seeds to your experience, space, climate, and THC target. The quiz filters the same catalog you can browse as feminized cannabis seeds (typically 7–12 weeks of flower after a 12/12 light change), autoflower cannabis seeds (about 8–12 weeks seed to harvest), or high THC cannabis seeds.
Catalog examples: Northern Light Autoflower is listed at 14%–19% THC and 10–12 weeks from seed; Original Glue Feminized at 17%–22% THC and 7–9 weeks of flower. Compare seed type, flowering time, height, and climate tags before you buy, or skip the quiz and open a category.
How StrainFinder matches cannabis seeds
StrainFinder is a 7-question quiz. Each answer applies a real storefront filter (experience, seed type, climate, effect, THC band, height, flavour). If the quiz does not load, use the category links below — those pages stay crawlable without JavaScript.
- Growing experience. Beginner maps to Easy-rated strains; intermediate includes Easy and Medium; advanced includes Medium and Hard.
- Seed type. Feminized photoperiod plants flower after a 12 hours on / 12 hours off light change. Autoflower seeds flower by age, usually in about 8–12 weeks from seed.
- Where you grow. Indoor leaves climate open. Cool outdoor summers map to Cold or Hot and Cold strains; warm summers to Hot or Hot and Cold; greenhouse to Hot and Cold.
- Effect. Uplifting → sativa-dominant; balanced → hybrid; soothing → indica-dominant; no high → high-CBD.
- THC strength. Mild through very strong maps to Low, Medium, High, and Very high catalog bands (for example AK-48 Autoflower at 14%–16% THC, Original Glue Feminized at 17%–22% THC).
- Plant size. Small, average, or big maps to Short, Average, or Tall height filters.
- Flavour (optional). Taste filters include berry, citrus, diesel, earthy, pine, sweet, and other catalog profiles.
Best cannabis seeds for beginners in the US
If this is your first US grow, start with an Easy-rated autoflower. You keep an 18/6 or 20/4 light schedule from seed to harvest, skip the 12/12 switch, and usually finish in 8–12 weeks. Northern Light Autoflower is a compact example: 14%–19% THC, about 10–12 weeks (77–84 days), 2.5–3.3 ft indoors, and roughly 300–400 g/m². AK-48 Autoflower is listed at 14%–16% THC with a 77–90 day indoor finish.
Move to feminized photoperiod seeds when you want to control veg time and plant size. Flower is typically 7–12 weeks after 12/12; Original Glue Feminized is listed at 7–9 weeks flower and 17%–22% THC. Shop the beginner cannabis seeds collection, or use StrainFinder and pick Beginner so only Easy-rated strains remain.
Nirvana Seeds has bred in Amsterdam since 1995. US orders ship discreetly via Priority Express in 2–5 business days. Each strain page lists seed type, reported THC band, flowering window, height, climate, and grow difficulty — the same facts the quiz filters on.
Feminized vs autoflower vs regular cannabis seeds
Use this table as a scrapeable comparison, then open the matching collection. Photoperiod (feminized and regular) plants are short-day: they flower when nights are long enough, which indoor growers usually set as 12/12. Autoflowers flower by age because of ruderalis ancestry. Times below are catalog ranges, not a guarantee for every room or climate.
| Type | Ease of cultivation | From seed to harvest | Ideal for |
|---|---|---|---|
| Feminized | Comfortable | 7–12 weeks flower after 12/12 | Female harvest; veg time is grower-controlled |
| Autoflowering | Very easy | 8–12 weeks seed to harvest | Beginners, short summers, small spaces |
| Regular | Advanced | Same photoperiod timing, plus sexing | Breeding, clones, and selecting males |
| CBD-rich | Comfortable | Photoperiod or auto, strain-specific | High-CBD harvest with low-to-moderate THC |
How to choose cannabis seeds for indoor or outdoor grows
Work through the same seven filters StrainFinder uses, even if you skip the quiz.
1. Seed type and clock. Need a harvest in about 8–12 weeks with no light change? Choose autoflower. Want to veg longer and run 7–12 weeks of 12/12 flower? Choose feminized. Breeding or clones? Choose regular.
2. Experience. First tent: Easy autos (see beginner cannabis seeds). A few harvests: Easy or Medium feminized. Training and long veg: Medium or Hard photoperiods.
3. Climate and space. Cool, short summers → Cold / Hot and Cold tags and faster finishers. Hot, long summers → Hot / Hot and Cold. Indoor → any climate tag if you hold temperature. Short plants for closets; tall plants only if you have height (Original Glue Feminized is listed around 4.9–5.2 ft).
4. THC and effect. Mild/medium bands sit around the mid-teens (AK-48 Autoflower 14%–16%). Stronger feminized examples reach the high teens to low 20s (Original Glue 17%–22%). High-CBD options such as Cherry Wine v2 CBD Feminized are for a low-intoxication harvest. Then read the strain page and, if you want a guided pass, open StrainFinder.
Next reads: how to germinate cannabis seeds, seedling care, and the flowering week-by-week guide.
Cannabis seed StrainFinder FAQ
What types of cannabis seeds are available?
Nirvana lists four main types. Feminized cannabis seeds are photoperiod plants bred to produce female plants, so you do not sex out males; indoor flower time is typically 7–12 weeks after you switch lights to 12 hours on / 12 hours off (for example Original Glue Feminized is listed at 7–9 weeks flower and 17%–22% THC). Autoflower cannabis seeds flower by age rather than night length and usually finish in about 8–12 weeks from seed (for example Northern Light Autoflower is listed at 10–12 weeks / 77–84 days, 14%–19% THC, and about 300–400 g/m² indoors). Regular seeds produce male and female plants and are used for breeding or taking clones. CBD-rich seeds, such as Cherry Wine v2 CBD Feminized, are selected for high-CBD characteristics rather than a strong psychoactive high. These high-THC and CBD seed strains are not hemp; U.S. hemp is defined as cannabis at or below 0.3% delta-9 THC.
Where do Nirvana cannabis seeds come from?
Nirvana Shop has bred cannabis genetics in Amsterdam since 1995 — more than 30 years of in-house selection, not a white-label reseller catalog. US orders ship from the US storefront; strain pages list seed type, reported THC band, flowering time, height, climate, and grow difficulty so you can compare before you buy.
How are cannabis seeds shipped in the United States?
US orders ship in a plain, discreet package via Priority Express. Typical delivery is 2 to 5 business days, depending on destination and when the order is placed. Tracking is included. Seeds are shipped as seeds; germination is the grower’s responsibility and is only lawful where permitted.
Which cannabis seeds are best for beginners in the US?
Autoflower cannabis seeds are the usual starting point: they do not need a 12/12 light switch, they finish in about 8–12 weeks from seed, and many are rated Easy. A concrete example is Northern Light Autoflower — indica-dominant, 14%–19% THC, about 10–12 weeks seed to harvest, compact 2.5–3.3 ft indoors, and roughly 300–400 g/m². AK-48 Autoflower is listed at 14%–16% THC with an indoor finish around 77–90 days. You can also shop the beginner cannabis seeds and easy to grow collections. Match the strain’s climate tag (Cold, Hot, or Hot and Cold) to your outdoor season; indoor grows can use any climate tag if you control temperature.
What is the difference between feminized and autoflower cannabis seeds?
Feminized cannabis seeds are photoperiod (short-day) plants: they stay in veg under long days, then flower when nights are long enough. Indoor growers usually switch to 12/12; flower then runs about 7–12 weeks depending on the strain. You control veg time and final size. Example: Original Glue Feminized is listed at 7–9 weeks flower, about 4.9–5.2 ft, and 17%–22% THC. Autoflower cannabis seeds include ruderalis ancestry and flower by age, not night length, so they skip the 12/12 switch and typically finish in 8–12 weeks from seed. Many autos are also feminized — the difference is how flowering is triggered, not only plant sex. See the flowering week-by-week guide for photoperiod timing, and Andre, Hausman & Guerriero (2016) for Cannabis sativa chemical diversity.
How do I choose a cannabis strain for my growing conditions?
Map your setup to the same filters StrainFinder uses. Experience: first grow → Easy (often autoflower). Climate: cool, short outdoor summers → Cold or Hot and Cold; long hot summers → Hot or Hot and Cold; greenhouse → Hot and Cold; indoor → any climate if you hold temperature. Space: Short plants for closets and balconies (Northern Light Autoflower is listed around 2.5–3.3 ft); Tall for rooms with vertical space (Original Glue Feminized around 4.9–5.2 ft). Timeline: autos about 8–12 weeks seed to harvest; feminized photoperiods add veg time plus 7–12 weeks of 12/12 flower. Then read the strain page for THC band, yield, and customer feedback, or open StrainFinder and answer the seven questions.
What THC percentage should I look for in cannabis seeds?
StrainFinder maps strength to four catalog bands: Low, Medium, High, and Very high. Examples currently listed: AK-48 Autoflower at 14%–16% THC (medium), Northern Light Autoflower at 14%–19%, and Original Glue Feminized at 17%–22%. High THC cannabis seeds collect the stronger end of the catalog. These figures are strain-page reports, not a lab certificate for every pack. They are also not hemp: USDA defines hemp as cannabis at or below 0.3% delta-9 THC (USDA AMS Domestic Hemp Production Program). Cannabinoid content varies widely across Cannabis sativa chemotypes (Andre, Hausman & Guerriero, 2016, Frontiers in Plant Science).
How long does it take to grow cannabis from seed in the US?
Count two clocks. Autoflower: about 8–12 weeks from seed to harvest under 18/6 or 20/4 light, with no 12/12 switch — Northern Light Autoflower is listed at 10–12 weeks (77–84 days); AK-48 Autoflower around 77–90 days indoor flowering. Feminized photoperiod: veg as long as you want under long days, then 7–12 weeks of flower after 12/12 (Original Glue Feminized is listed at 7–9 weeks flower). Outdoor photoperiod harvests follow local night length, often September–October in much of the US. Germination is usually 1–5 days; see the germination guide and the seedling care guide.
