Auto White Widow
Auto White Widow (White Widow autoflower) from Pyramid Seeds — the Cannabis Cup classic in autoflowering format, with a germination guarantee. Original White Widow genetics: a balanced hybrid effect, legendary resin production, finished in 65 days with no light schedule. Up to 750 g/1.5 m² under LED — several harvests per year possible.
Who is it for? For anyone who wants the classic White Widow character with no light management — fast, discreet, hassle-free. Feminised (UK spelling), so practically every plant is female. Discreet shipping to the UK, Europe, the US, Canada and worldwide.
Auto White Widow (White Widow autoflower) from Pyramid Seeds — the classic in autoflowering format. The same original White Widow genetics with a germination guarantee, now in 65 days from germination with no light schedule. With 20–23% THC, a balanced hybrid effect and legendary resin production — several harvests per year possible. Buy Auto White Widow Pyramid Seeds direct from the breeder.
Key specifications
| Genetics | White Widow |
| Genotype | 50% sativa / 50% indica |
| Seed type | Autoflowering, feminized |
| THC | 20–23% |
| CBD | Low (< 1%) |
| Flowering indoor | 65 days from germination (LED: 58 days) |
| Yield indoor | 450 g/m² | up to 700–750 g/1.5 m² (720 W LED) |
| Yield outdoor | 70–200 g/plant |
| Height indoor | 80–160 cm |
| Height outdoor | from 70 cm |
| Dominant terpenes | Myrcene, caryophyllene, pinene |
| Aroma | Earthy, spicy, woody, resinous sweetness |
| Effects | Euphoric, creative, strongly relaxing |
| Difficulty | Easy |
Genetics and origin
Auto White Widow is based on the original White Widow — the 1995 Cannabis Cup winner and one of the most famous 50/50 hybrids in the world. The autoflowering trait was introduced in autoflower format without altering the signature White Widow profile: same effect, same aroma, no light schedule needed. Whether you search for it as White Widow Auto, White Widow autoflower or White Widow automatic, it is the same strain. For the full story of the strain and all variants, see our White Widow strain guide.
Auto White Widow effects
The Auto White Widow effect is identical to the classic version — two-phase and balanced:
- Euphoric, clear onset — the mind wakes up, a creative and sociable mood
- Physical relaxation — without heavy couch-lock at moderate doses
- Stress relief — ideal for the end of the day
- Strongly relaxing — sedating at higher doses, supports sleep
Aroma and terpene profile
The characteristic White Widow aroma profile is fully preserved in the autoflowering version: earthy-spicy, woody, with a resinous sweetness. Its legendary trichome production makes it especially attractive for extraction.
| Terpene | Typical impressions | Contribution to the profile |
|---|---|---|
| Myrcene | Earthy, musky, sweet | The base of the relaxing body effect |
| Caryophyllene | Spicy, peppery, warm | The characteristic spice, complements the earthy profile |
| Pinene | Fresh, pine-like, clear | A fresh finish, supports mental clarity |
Growing — indoor and outdoor
Indoor growing
No light switch needed — a constant 18/6 throughout the whole cycle. Finished in 65 days from germination (LED: 58 days). Yield: 450 g/m² standard, up to 700–750 g/1.5 m² with a 720 W LED. Growth height 80–160 cm — LST recommended for more compact setups. Sow directly into the final pot size — autos are sensitive to root stress.
Outdoor growing: UK, Europe, USA and Canada
Two harvests per season possible in the northern hemisphere: first sowing April/May → harvest July/August; second sowing June/July → harvest September/October. A compact growth habit (from 70 cm outdoors) and discreet smell — ideal for balcony and urban projects. 70–200 g per plant. Because it finishes in about 65 days whatever the day length, Auto White Widow suits short seasons — the UK, northern and central Europe, Canada and the northern US — where a photoperiod plant might not ripen before autumn. In long seasons — southern Europe, California and the southern US — the two-harvest schedule above makes the most of the summer.
Auto White Widow vs White Widow Fem: a direct comparison
| Auto White Widow | White Widow Fem | |
|---|---|---|
| Seed type | Autoflowering | Photoperiod |
| THC | 20–23% | 20–22% |
| Flowering | 65 days (from germination) | 60 days (from flip) |
| Yield indoor (LED) | 700–750 g/1.5 m² | 800–850 g/1.5 m² |
| Yield outdoor | 70–200 g/plant | 0.5–1.5 kg/plant |
| Light switch needed | No | Yes (12/12) |
| Multiple harvests/year | ✅ Yes | Limited |
When to choose Auto, when Fem?
Choose Auto White Widow if: you want several harvests per year, grow outdoors without timing stress, are a beginner, or prefer a compact, discreet setup.
Choose White Widow Fem if: you want maximum outdoor yield (up to 1.5 kg/plant) and prefer full control over the vegetation period.
White Widow family — all variants
- White Widow Fem — original classic genetics, 20–22% THC, up to 1.5 kg outdoor
- White Widow CBD — balanced CBD/THC profile, gentle effect
- Auto White Widow CBD — autoflowering CBD version
- American Pie — Power Plant × White Widow, fruity profile
- Nefertiti — Black Widow × White Widow
Buy Auto White Widow seeds direct from the breeder
Every pack of Auto White Widow seeds comes from the Pyramid Seeds breeding programme in Barcelona, where we have produced our own genetics since 2002 — no repackaged seeds from other producers. All orders include our germination guarantee and are shipped discreetly to the UK, across Europe, to the US and Canada and worldwide.
Auto White Widow flowers independently of light in 65 days from germination — no light switch needed, several harvests per year possible. The White Widow Fem needs a 12/12 light schedule but offers higher outdoor yields of up to 1.5 kg per plant.
65 days from germination — as little as 58 days under LED. No light schedule needed. This allows two harvests per season: first sowing April/May, second June/July.
The effect is two-phase: a euphoric, clear head effect followed by deep physical relaxation. At moderate doses it stays functional and creatively stimulating — identical to the classic White Widow Fem.
Yes — easy difficulty, no light management, robust genetics. One of the most recommendable autoflowering strains for those starting out with the White Widow line.
450 g/m² standard indoors, up to 700–750 g/1.5 m² with a 720 W LED. Outdoors, 70–200 g per plant. With two harvests per season possible, the annual total can be considerable.
Indoors Auto White Widow reaches about 80–160 cm; outdoors it starts from around 70 cm. LST helps keep it compact in small tents.
Yes. Auto White Widow seeds are both autoflowering and feminized — “feminised” in British spelling — so practically every plant is a female that produces buds.
Pyramid Seeds sells cannabis seeds as collectible items, and the growing information on our site is for educational purposes only. Whether you may germinate seeds and grow plants depends on the law in your country — please check the regulations that apply where you live before growing.
Pyramid Seeds — over 20 years of experience in cannabis breeding. Direct shipping from Barcelona, discreet and fast worldwide.
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CollectionEuropean
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TypeFeminized
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Flowering typeAutoflowering
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Genotype DominanceHybrid
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GenotypeIndica 50%
Sativa 50% -
GeneticsWhite Widow
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THC LevelHigh
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THCTHC 20-23%
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CBD LevelLow
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CBDLow
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Best Sellers✓
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Yield Indicators (Indoor)Large
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Indoor yield per 1 m²450 gr/m2
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Indoor yield per 1,5 m² (Expert 720 W LED)700-750 g/1,5m²
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Yield Indicators (outdoor)Medium
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Outdoor yield70-200 gr
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Approximate indoor height80 -160 cm
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Approximate outdoor height+ 70 cm
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AromaCandy
Wood -
EffectsPowerful relaxing
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Difficulty LevelEasy
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Indoor flowering65 days
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Indoor flowering (LED)58 days
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