Purple Queen Auto takes the color and calm of Royal Queen Seeds’ Purple Queen and packs it into a speedy, low-maintenance autoflower. Breeders crossed Purple Queen with Critical Auto, locking in a heavy indica backbone (80% indica, 15% sativa, 5% ruderalis) and the ability to flower on age rather than light schedule.
The fun begins in bloom. Out of every ten plants, roughly half shift into rich purple shades while the others stay a dark, glossy green. Either way, buds stack up tight and sticky, and the whole cycle runs about 55 to 65 days from germination to harvest, or roughly 8 to 9 weeks.
Indoors she stays manageable at 3 to 4 feet (90–120 cm) and returns 12 to 14 oz/m² (340–395 g/m²). Outside, plants reach 3 to 5 feet (90–150 cm) and yield 3 to 5 oz/plant (85–140 g/plant) each, perfect for a balcony, patio or a discreet corner of the garden.
With THC up to 16% and low CBD, the experience is relaxed and pleasant rather than overwhelming, a good fit for anyone who prefers a gentler, mood-lifting session.
Flavor and Effects of Purple Queen Auto
Open a jar and you are greeted by citrus peel layered over damp earth, with skunky, fruity undertones underneath. On the inhale, sweetness meets a slightly bitter, spicy edge, giving the smoke more depth than you might expect from a fast auto.
The high starts with a light, happy lift. A smile creeps in, music sounds a little richer, and racing thoughts slow down. As the session continues, a calming heaviness spreads through the body. It feels like a warm bath and a good playlist at the end of a long week: easygoing, mellow and quietly euphoric.
Growing Purple Queen Auto Seeds
Because she is an autoflower, there is no need to switch lights to 12/12. Run her on 18/6 or 20/4 from seed to finish and she will move into bloom on her own after a few weeks of growth. Plant directly into the final container to avoid transplant shock, since autos have little time to recover.
Her compact size makes her a natural fit for small tents, closets and stealth setups. Outdoors, she favors regions with long, warm summers, and her short life cycle lets you run several harvests in a single season, from late spring right through to early fall. Gentle LST is all the training she needs; skip heavy topping on a plant with such a short veg window.
Purple Queen Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Purple Queen x Critical Auto |
| Indica/Sativa | 80% Indica / 15% Sativa / 5% Ruderalis |
| THC | Up to 16% |
| CBD | Low |
| Effect | Calming, euphoric |
| Flavor | Citrus, earthy |
| Indoor yield | 12 to 14 oz/m² (340–395 g/m²) |
| Outdoor yield | 3 to 5 oz/plant (85–140 g/plant) |
| Seed to harvest | 55–65 days after germination (about 8–9 weeks); flowering 45–50 days |
| Height | Indoor 3 to 4 feet (90–120 cm); outdoor 3 to 5 feet (90–150 cm) |
| Climate | Suits long summers |
| Best cultivation technique | LST, small-space and SOG setups |
FAQ
How long does Purple Queen Auto take from seed to harvest?
Royal Queen Seeds lists 55 to 65 days after germination, which is roughly 8 to 9 weeks. The flowering stage itself lasts about 45 to 50 days.
Will every Purple Queen Auto plant turn purple?
No. About half the plants typically develop deep purple tones, while the other half stay dark green. Both phenotypes share the same flavor and calm, euphoric effect.
What light schedule should I use for Purple Queen Auto?
As an autoflower she does not need a 12/12 switch. Most growers run 18/6 or 20/4 from germination to harvest.
How tall does Purple Queen Auto grow?
Indoors she reaches 3 to 4 feet (90–120 cm). Outdoors, plants grow to 3 to 5 feet (90–150 cm).
What yield does Purple Queen Auto produce?
Expect 12 to 14 oz/m² (340–395 g/m²) indoors and 3 to 5 oz/plant (85–140 g/plant) outdoors.
How strong is Purple Queen Auto?
THC reaches up to 16% with low CBD, giving a relaxed, mood-lifting experience that is moderate rather than overpowering.
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