Autoflower · ILGM Genetics
Auto White Widow
Auto White Widow is the ILGM autoflower conversion of the classic White Widow line, crossing the bank's working White Widow stock with ruderalis to produce an autoflower that retains the heavy trichome coverage and balanced hybrid effects of the photoperiod parent. The total cycle runs nine to eleven weeks from seed under 18-to-20-hour light, with plants staying compact at 60 to 110 centimeters indoors and producing the dense, frosty bud structure that gave White Widow its name. The terpene profile leans pine, earth, and sweet hash with a peppery undertone, and the high sits at the balanced midpoint between sativa cerebral lift and indica body relaxation — one of the few autoflowers that genuinely splits the difference rather than leaning hard one direction. ILGM bundles Auto White Widow into multiple beginner-friendly seed packs alongside Auto Northern Lights and Auto AK, positioning the three together as their introductory autoflower lineup for new growers. The trichome coverage on properly grown Auto White Widow makes it one of the better autoflower options for small-batch hash and rosin production.
Reviewed 2026-05-23· Sources: seedfinder.eu, ILGM catalogue
Potency
- THC range
- 17–22%
- Typical THC
- 20%
- CBD
- up to 0.4%
Flowering
- Indoor weeks
- 9–11 wk
- Difficulty
- Easy
- Climate
- temperate, Mediterranean, indoor
Yield & size
- Indoor
- 400-500 g/m²
- Outdoor
- 125-225 g/plant
- Height
- 60-110 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Auto White Widow smells, tastes, and ultimately feels in the body.
- dominant
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
- secondary
Pinene
Alert and pine-forward — associated with mental clarity and bronchodilation.
- secondary
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- minor
Humulene
Hoppy and earthy — appetite-suppressing and shared with hops and sage.
Reported side effects
Lineage
Auto White Widow traces to White Widow × ruderalis. The cross sits in the Brazilian sativa x South Indian indica x ruderalis family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Auto White Widow based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Grow profile
Grow profile
- Indica / sativa
- 50% / 50%
- Flowering days
- 63–77 days
- Stretch
- Moderate
- Pest resistance
- High
- Mold resistance
- High
- Training methods
- lst
Feed schedule for Auto White Widow
These EC and NPK targets are starting points calibrated for the strain's Hybrid lean and easy difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.0-1.2 EC
- Early flower
- 1.1-1.3 EC, NPK 2-2-4
- Mid flower
- 1.4-1.6 EC, NPK 1-3-5
- Late flower
- 1.2-1.4 EC
- Final week
- Plain pH-balanced water for the last 5-7 days.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Auto White Widow is documented with a 10-week flower split across the standard hybrid phases. The visual below maps a documented 14-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Auto White Widow concentrate the most observational notes on the mid-to-late flower transition. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Auto White Widow. Plants establish root structure, leaf canopy, and node count before flower triggering, with a easy difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-8)
- Auto White Widow is documented as having moderate stretch. Reports describe the plant roughly doubling in height during this phase as the hybrid structure establishes its final flowering frame.
- Bud sites (weeks 9-10)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Auto White Widownote this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 11-12)
- Flowers thicken and calyxes fatten through this phase. Documented Auto White Widow runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 13)
- Trichomes transition from clear toward cloudy and amber. Reports for Auto White Widow describe the Myrcene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 14)
- Calyx swelling is documented as complete and the harvest window opens. Published Auto White Widow runs end here, within the 9-11 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Auto White Widow
Is Auto White Widow as resinous as the photoperiod version?
Trichome coverage is close but slightly less heavy than the photoperiod parent — autoflowers have shorter total vegetative time to build resin glands. That said, properly grown Auto White Widow still produces enough trichome density for small-batch ice-water hash and rosin pressing.
How balanced is the auto compared to other autoflowers?
More balanced than most. The original White Widow is a near-50/50 hybrid, and the auto conversion preserves that split better than most autoflower lines that drift toward indica dominance through the ruderalis input. Effects feel evenly split between cerebral lift and body relaxation.
Breeder of record
ILGM Genetics
View breeder profile and other strains →
More from ILGM Genetics
Strains similar to Auto White Widow
These picks lean on the same terpene profile and parent genetics as Auto White Widow — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.