Dark Devil Auto pairs the size and yield of Big Devil XL Auto with an exotic purple autoflower from the Hindu Kush. Around 95% of plants finish with deep purple flowers, and the whole cycle runs about 8½ weeks from germination.
Resin coats both the buds and the surrounding leaves, carrying a sweet, fruity scent with incense and citrus. THC is listed at 15–20% with 0.9% CBD, and the effect balances mental stimulation with body comfort.
Plants reach 80–130 cm (31–51 in) and deliver 400–600 g/m² (1.31–1.97 oz/ft²) indoors or 50–200 g (1.8–7.1 oz) per plant outdoors. Sweet Seeds lists a first prize as Auto of the Year at the 2014 High Life Cup in Amsterdam, organized by Soft Secrets.
Lineage: Big Devil XL Auto × a Purple Chitral Autoflower
Dark Devil Auto (SWS38) uses a selected line of Big Devil XL Auto (SWS28), one of the breeder’s most popular autoflowers, as its base. Sweet Seeds crossed it with a purple-flowered autoflower whose ancestors come from Chitral, a mountain region of the Pakistani Hindu Kush close to the Afghan border.
The Chitral side brings the purple pigment, sweeter aromas and a slightly faster bloom, while Big Devil XL Auto keeps the vigor and yield. The final balance is 55% Sativa, 40.3% Indica and 4.7% Ruderalis, and the plant belongs to the breeder’s Red Family of colorful strains.
Aroma, Flavor and Effect
The bouquet opens sweet and fruity, then reveals smoky incense, warm spice and a refreshing citrus streak. Woody hints add depth, and the scent hangs around long after the jar is closed.
The flavor is layered and long-lasting, like dark plums and orange zest burned on a bed of sandalwood. Sweet first, then spicy and resinous on the finish.
Sweet Seeds describes the effect as psychoactive and relaxing. The head gets a vivid, uplifting stimulation while the body loosens into a smooth, comfortable calm, a balanced mix suited to evenings with music, film or good company.
Growing Dark Devil Auto Indoors and Outdoors
Dark Devil Auto flowers automatically, so no 12/12 switch is needed. The breeder recommends an 18 to 20 hour light cycle indoors, so run 18/6 or 20/4 from germination to harvest, about 8½ weeks in total. Sow straight into a final pot of around 11–19 liters (3–5 gallons).
The plant shows strong hybrid vigor from day one, with a sturdy central stem, many side branches and a big main cola. Indoors, LST in the early weeks brings the side branches level with the top and helps reach 400–600 g/m² (1.31–1.97 oz/ft²). A carbon filter is wise once the incense notes develop.
Outdoors, plant after the last frost in full sun. At 80–130 cm (31–51 in), it produces 50–200 g (1.8–7.1 oz) per plant in good soil, and cool nights near harvest intensify the purple coloring.
Dark Devil Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Variety code | SWS38 |
| Genetics | Big Devil XL Auto (SWS28) × purple-flowered Chitral (Hindu Kush) autoflower |
| Indica/Sativa | 40.3% Indica / 55% Sativa / 4.7% Ruderalis |
| THC | 15–20% |
| CBD | 0.9% |
| Effect | Psychoactive, relaxing |
| Aroma/Flavor | Sweet, fruity, incense, spices, citrus, woods |
| Indoor yield | 400–600 g/m² (1.31–1.97 oz/ft²) |
| Outdoor yield | 50–200 g/plant (1.8–7.1 oz/plant) |
| Seed to harvest | 8½ weeks from germination |
| Height | 80–130 cm (31–51 in) |
| Best cultivation technique | Early LST around a strong main cola |
FAQ
Is Dark Devil Auto Indica or Sativa?
It is a Sativa-leaning hybrid: 55% Sativa, 40.3% Indica and 4.7% Ruderalis, with a sturdy, well-branched structure.
Do Dark Devil Auto plants turn purple?
Sweet Seeds reports purple flowers in about 95% of plants, inherited from its Chitral autoflower parent.
How long does Dark Devil Auto take?
About 8½ weeks from germination to harvest. The breeder recommends 18 to 20 hours of light per day throughout, such as 18/6 or 20/4.
What does Dark Devil Auto smell like?
Sweet and fruity with incense, spice, citrus and woody hints. Complex and long-lasting.
Has Dark Devil Auto won awards?
Sweet Seeds lists a 1st prize in the Auto of the Year category at the 2014 High Life Cup in Amsterdam, organized by Soft Secrets.
Do Sweet Seeds packs include free seeds?
Yes. Every 3-seed pack of Dark Devil Auto ships with 1 free bonus seed, and every 5-seed pack ships with 2 free bonus seeds, so you end up with 4 or 7 seeds in total. The 25-seed pack is sold as a straight 25 seeds with no bonus added.


Reviews
There are no reviews yet.