Your seed choice locks in 80% of your grow before the light ever switches on. Three decisions matter: auto vs. photo, feminized vs. regular, and the actual cultivar.
Decision 1: Autoflower vs. Photoperiod
| Autoflower | Photoperiod | |
|---|---|---|
| Flowers when... | On a genetic timer (~4 wks from sprout) | You flip the light to 12/12 |
| Seed → harvest | 10–12 weeks, fixed | 16–20+ weeks, you decide |
| Size | Small–medium, closet-friendly | As big as you let it veg |
| Training | Light LST only — no time to recover | Everything: top, LST, the works |
| Mistake tolerance | Low — a stunted week is gone forever | High — veg longer to recover |
| Stealth bonus | No strict dark period needed | Needs uninterrupted 12h darkness |
Honest take: autos are faster and simpler when nothing goes wrong — but photos forgive mistakes, and first grows have mistakes. If you can wait the extra month, a feminized photoperiod is the best first-grow choice. If speed or space rules, grab an auto and treat it gently.
For the full autoflower deep dive, see the autoflower complete guide.
Decision 2: Feminized vs. Regular
- Feminized (~99% female): every plant makes bud. Buy these
- Regular (50/50): half will be males you must catch and cull before they pollinate. For breeders, not beginners
If you do run regular seeds, you'll need to identify and remove males early in flower. See the sexing guide for how to tell male from female.
Decision 3: The cultivar itself
Forget "indica = sleepy, sativa = energetic" — modern strains are nearly all hybrids and the label tells you little. What to actually shop by:
- Grow difficulty. Breeders and seed banks flag beginner-friendly strains — mold-resistant, stretch-controlled, forgiving feeders. Classics like Northern Lights, Blue Dream, and GG4-type hybrids earn the reputation
- Flowering time. 8–9 week flower finishes faster and risks less
- Height/stretch. Read the breeder's numbers against your tent height — some "sativas" triple at the flip
- Your goal. Day-use, sleep, pain, flavor? Read the terpene/effect notes, not the indica/sativa banner
Beginner-friendly strains worth considering
| Strain | Type | Why it works for beginners |
|---|---|---|
| Northern Lights | Indica | Compact, fast, nearly bulletproof |
| Blue Dream | Hybrid | Forgiving, huge yields, vigorous |
| White Widow | Hybrid | Resilient, classic effects |
| Girl Scout Cookies | Hybrid | Dense, moderate height |
| Critical Mass | Indica | Heavy yields, short flower time |
Browse our full strain database for grow specs, terpene profiles, and matched grow guides.
Buying without getting burned
- Buy from an established seed bank or breeder with reviews — not an auction site
- Fresh, dark, firm seeds germinate best; pale green or crushed ones don't
- Buy 1.5–2x the plants you intend to run — germination isn't 100%, and you want to pick the strongest seedlings
- Know your local law first. Seed legality and plant counts vary — in New York, home cultivation has plant-count limits per household
Seed storage
Seeds you don't plant immediately can be stored for years if you keep them:
- Cool — a fridge (not freezer) is ideal, 4–8 °C
- Dark — in an opaque container or envelope
- Dry — include a silica gel packet to prevent moisture buildup
Properly stored seeds keep 90%+ germination rates for 2–3 years. Older seeds still germinate but at lower rates — plant extras and consider a 24-hour pre-soak to help the shell soften.
The first-grow genetics cheat code
One strain, multiple seeds. Running two different strains in one tent means two different feeding appetites, heights, and finish dates — in one small space. Master one cultivar first; get variety on grow #2.
Once you've picked your seeds, see germination for the paper-towel method and planting technique.