How to Grow White Widow Seeds (2025 Grow Diary)

Why Grow White Widow?

White Widow is the kind of strain that bridges eras. A perfect 50/50 hybrid, it delivers both cerebral lift and body depth. Its resin production is legendary; in the right environment, this plant glows with crystal frost from early bloom to chop. Grow it for flavor, for yield, and for that classic euphoric “white widow punch.”

White Widow

• All-Day Smoke
• Energizing Daytime Experience
• Indoor & Outdoor Success

1+1 Free$24$19view product

Strain Snapshot (TL;DR)

• Gender: Feminized
• THC: Up to 23%
• CBD: Up to 1%
• Flavor: Earthy, Fresh Woods, Spicy
• Type: 50% Indica / 50% Sativa
• Flowering: 8–9 weeks
• Indoor Yield: 1.6–1.8 oz/ft²
• Outdoor Yield: 17–21 oz/plant
• Height: 60–70 in
• Harvest: Late September — early October
• Effect: Energetic, Euphoria, Creative
• Genetics: Brazilian Landrace Sativa × South Indian Landrace Indica

👉 Shop White Widow seeds at Hypno Seeds
👉 Browse more Hybrid Seeds

Setup Checklist for Growing White Widow Seeds

🏕️ Indoor Setup

• Tent: 2×3 ft or larger
• Lighting: Full-spectrum LED (400–600 W eq.)
• Ventilation: Inline fan + carbon filter
• Airflow: Oscillating fans across canopy
• Pots: 3–5 gal fabric or equivalent
• Medium: Quality soil or coco + perlite
• Nutrients: Balanced veg & bloom line + Cal-Mag
• Water: pH 6.2–6.6
• Humidity control: Dehumidifier especially for late flower

🌞 Outdoor Setup

• Climate: Warm, stable; avoid extreme humidity
• Soil: Rich, well-draining, with compost
• Support: Use stakes or cages for heavy branches
• Harvest: Late September to early October

Germination: Starting Your White Widow Grow

Use the paper towel method:

• Place seeds between two damp (not saturated) paper towels.
• Sandwich between plates for darkness and airflow.
• Keep at ~70–75°F, check daily.
• Once taproot ~½ inch, gently plant root-tip down ~½ inch into medium.

⚠️ Don’t seal in plastic, restricts airflow and may cause mold.

Week 1: Seedling Stage

What to Expect:

• Height: 1–2 inches
• Cotyledons emerge, then first true leaves
• Light, healthy green

Environment Targets:

• Light: 18–24h low intensity
• Temp: 72–77°F
• Humidity: 65–70%
• Water: Gentle mist or ring
• Nutrients: None yet (or minimal Cal-Mag in inert media)

🧠 Tip: Avoid overwatering, wet feet kill seedlings faster than drought.

Week 2: Early Veg + Optional LST

What to Expect:

• Height: 2–4 inches
• Growth: 3–5 finger fans, stronger stem
• Branching begins

Targets:

• Light: 18h (~300 PPFD)
• Temp: 73–78°F
• Humidity: 60–65%
• Nutrients: ¼ strength veg feed

Optional: Use gentle LST to shape canopy early.

Week 3: Veg Expansion

What to Expect:

• Height: 6–10 inches
• Canopy fills out, internodes lengthen
• Aroma: Earthy/woodsy hints upon leaf rub

Targets:

• Light: 18h (~400–500 PPFD)
• Temp: 73–78°F
• Humidity: 55–60%
• Nutrients: Veg feed at ½ strength

🧠 Note: White Widow handles topping and training well — maximize branch sites.

Week 4: Pre-Flower & Final Training

What to Expect:

• Height: ~12–16 inches
• Bushy, strong structure
• Aroma: Earthy and spicy notes expand

Targets:

• Light: 18/6 (~500–600 PPFD)
• Temp: 72–78°F
• Humidity: 50–55%
• Nutrients: Full veg feed

Finish LST/SCROG, prune lower growth, and ready for flip.

Week 5: Flower Begins

What to Expect:

• Height: 18–25 inches (stretch begins)
• Pistils emerge at nodes
• Scent: Earthy + wood spice emerges

Targets:

• Light: 12/12 (~600–700 PPFD)
• Temp: 72–78°F
• Humidity: 45–50%
• Nutrients: Switch to bloom formula

Week 6: Bud Sites & Trichome Development

What to Expect:

• Height: 25–32 in
• Bud sites appear along branches
• Frost begins on sugar leaves
• Aroma: Deep wood, spice, earthiness

Targets:

• Light: 12/12 (~700 PPFD)
• Temp: 70–77°F
• Humidity: ~45%
• Nutrients: Bloom + Cal-Mag

Week 7–8: Bud Fattening & Aroma Surge

What to Expect:

• Height: 32–45 in
• Buds swell and densify
• Smell: Rich, spicy earth + resinous wood tones
• Trichomes: Heavy frost spread

Targets:

• Light: 12/12 (~700–800 PPFD)
• Temp: 68–75°F
• Humidity: 40–45%
• Nutrients: Continue bloom, optional additives

🧠 Support: Use stakes or net for hefty colas.

Week 9: Final Flush & Ripeness Check

What to Expect:

• Buds: Fully mature, sticky
• Pistils: 70–90% darkened
• Trichomes: Mostly cloudy, ~10–20% amber

Targets:

• Light: 12/12
• Temp: 65–70°F
• Humidity: 35–40%
• Water: Flush with plain pH’d water 5–7 days

📅 Harvest: late September to early October.

Harvest & Curing

• Dry: ~60°F / 55% RH in darkness, 10–14 days
• Cure: Use jars, burp daily first week, then weekly
• Result: Resin-drenched buds with woody, spicy, earthy aroma and an energetic, euphoric high

Final Thoughts on Growing White Widow Seeds

White Widow is a go-to hybrid for growers who want balanced effects, frosty outcomes, and no-nonsense growth. It handles training well, resists pests, and rewards patience with potent resin and classic flavor.

If you’re wondering how to grow White Widow strain, this is your complete blueprint from germination to smoke.

White Widow

• All-Day Smoke
• Energizing Daytime Experience
• Indoor & Outdoor Success

1+1 Free$24$19view product

👉 Shop White Widow seeds at Hypno Seeds
👉 Browse more Hybrid Seeds
🔗 Learn more about White Widow on Leafly

FAQ: Growing White Widow Seeds

How long does White Widow take to flower?
8–9 weeks, with harvest in late September to early October.

How tall does White Widow grow?
Roughly 60–70 inches under good conditions.

What yields can I expect?
1.6–1.8 oz/ft² indoors; 17–21 oz/plant outdoors.

What does White Widow taste like?
Earthy, fresh woods, spicy with a crisp finish.

What effects does White Widow have?
Energetic, euphoric, creative, a classic hybrid high.