Auto Purple from Pyramid Seeds — European purple genetics in autoflowering format, with a germination guarantee. A best seller. 18–20% THC, a 50/50 hybrid, up to 750 g/1.5 m² under LED — an intense forest-berry aroma and spectacular violet colours in 65 days from germination with no light schedule. (Also searched as "Purple Auto", "Purple Autoflower", "Auto Purple Pyramid Seeds" or "Auto Purple strain".)
Key specifications
| Genetics | Purple |
| Genotype | 50% sativa / 50% indica |
| Collection | European · Best Seller |
| Seed type | Autoflowering, feminized |
| THC | 18–20% |
| CBD | Low (< 1%) |
| Cycle indoor | 65 days from germination (LED: 58 days) |
| Yield indoor | 400 g/m² | up to 700–750 g/1.5 m² (720 W LED) |
| Yield outdoor | 50–180 g/plant |
| Height indoor | 40–140 cm |
| Height outdoor | from 60 cm |
| Special feature | Unusual colour — intense violet tones |
| Dominant terpenes | Myrcene, caryophyllene, linalool |
| Aroma | Forest berries, ripe fruit, sweet |
| Effects | Euphoric, relaxing, serene |
| Difficulty | Easy |
Genetics and origin
Auto Purple is based on Purple Fem — the European purple selection by Pyramid Seeds — converted into an autoflowering format. The characteristic forest-berry profile, the violet colours and the balanced effect are all preserved — now with no light schedule and several harvests a year possible. A best seller in the European collection.
Effects
As a balanced 50/50 hybrid, Auto Purple offers a two-phase effect:
- Euphoric start — a pleasant mood lift and serenity
- Physical relaxation — the indica share brings deep muscle relaxation
- Balanced serenity — ideal for the evening or creative moments
At 18–20% THC it's more accessible than the Fem version — ideal for newcomers to purple genetics.
Aroma and terpene profile
The forest-berry fruit profile of Purple Fem is fully preserved in the autoflowering version — intense, sweet, fruity. The violet tones are present even under continuous 18/6 lighting, but intensify at cooler temperatures in late flowering.
| Terpene | Typical impressions | Contribution to the profile |
|---|
| Myrcene | Earthy, fruity, sweet | A fruity base, supports relaxation |
| Caryophyllene | Spicy, peppery, warm | Spicy depth, balances the berry sweetness |
| Linalool | Floral, slightly sweet | A calming floral note |
Growing — indoor and outdoor
Indoor growing
No light switch needed — a constant 18/6. Ready in 65 days from germination (LED: 58 days). Yield: 400 g/m² standard, up to 700–750 g/1.5 m² with a 720 W LED. Variable height: 40–140 cm — light LST recommended for more compact setups.
Outdoor growing
Two harvests per season are possible: a first sowing in April/May → harvest July/August; a second sowing in June/July → harvest September/October. 50–180 g per plant. From 60 cm outdoors — compact and discreet. Natural temperature drops in autumn intensify the violet tones. As one of the most colourful autoflower strains, it's a standout in any garden.
Auto Purple vs Purple Fem: a direct comparison
| Auto Purple | Purple Fem |
|---|
| Seed type | Autoflowering | Photoperiod |
| THC | 18–20% | 22% |
| Flowering | 65 days (from germination) | 60 days (from flip) |
| Yield indoor (LED) | 700–750 g/1.5 m² | 750–800 g/1.5 m² |
| Yield outdoor | 50–180 g/plant | 0.5–1.5 kg/plant |
| Multiple harvests/year | ✅ Yes | Limited |
When Auto, when Fem?
Choose Auto Purple if: you want several harvests a year, are a beginner or prefer a compact, discreet setup with no light schedule.
Choose Purple Fem if: you want maximum yield (up to 1.5 kg outdoor), higher potency (22% THC) and full control over the vegetative period.
Purple family — related strains
The best-selling purple autoflower. Auto Purple delivers 18–20% THC, a fruity forest-berry aroma and violet buds in just 65 days — no light schedule. Available in bulk packs too.
Auto Purple — frequently asked questions
What is Auto Purple?Auto Purple is a feminized 50/50 hybrid autoflower from Pyramid Seeds' European best-seller collection. 18–20% THC, an intense forest-berry aroma, violet colours — ready in 65 days from germination with no light schedule.
How long does Auto Purple flower?65 days from germination — under LED from 58 days. No light switch needed. In cooler climates this allows two harvests per season.
Why is Auto Purple violet?The violet colour comes from anthocyanins — genetically determined colour pigments firmly anchored in the Purple line. Cool temperatures in late flowering intensify the violet tones further, making it one of the most colourful autoflower strains.
What's the difference between Auto Purple and Purple Urkle?Auto Purple is a European autoflowering selection — a 50/50 hybrid, easier to grow, with several harvests a year. Purple Urkle is an American photoperiod indica (80%) with a more intense grape profile and higher potency (20–22% THC).
Is Auto Purple good for beginners?Yes — easy difficulty, no light management, robust European genetics. One of the best-selling autoflowering strains in the Pyramid Seeds collection.
Where can I buy Auto Purple seeds?Original Auto Purple seeds with a germination guarantee are available directly from Pyramid Seeds — also in bulk packs, with fast, discreet worldwide shipping.
Pyramid Seeds — over 20 years of experience in cannabis breeding. Direct shipping from Barcelona, discreet and fast worldwide.
