Big Devil XL Auto is a third-generation Autoflowering hybrid bred from Big Devil #2 Auto and an autoflowering Jack Herer from the Sweet Seeds R&D department. It combines 65% Sativa, 31.9% Indica, and 3.1% Ruderalis genetics.
Sweet Seeds bred this variety to increase the height, branching, and bud density found in its previous version.
Plants can reach 110–160 cm (43–63 in), with numerous long lateral branches and thick buds covered in aromatic resin. Expect bold effects, an expressive aroma, and a memorable citrus-incense character.
Big Devil XL Auto has also earned major competition recognition, including first place for Auto of the Year at the 2014 Soft Secrets High Life Cup, first place in the Auto category at the 2014 Expogrow Cannabis Cup, and second place in the Auto category at the 2018 Copa Esmeralda.
Effects
Its 19–20% THC content supports a clearly psychoactive experience. The reported effects lean toward happiness, stimulation, and creativity. Instead of fading quietly into the background, the effect feels like somebody switching on the lights upstairs while a warm current runs through the body.
That stimulating quality makes the experience feel lively and mentally active. The creative side adds another dimension, especially if you prefer an effect with some spark behind it.
We really like this strain because its upbeat character feels energetic, expressive, and pleasantly heady.
Flavor
The first impression is aromatic and unmistakable. Incense and spice build the darker side of the profile, while lemon and citrus bring a cleaner, sharper finish. We think that contrast gives Big Devil XL Auto much of its personality.
The flavor moves like lemon peel through a cloud of warm incense. Citrus cuts through first, then spicy and incense-like tones linger behind it. The result feels layered rather than sugary or flat.
If you enjoy cannabis with an old-school aromatic streak and a fresh citrus twist, this one has plenty to say.
Big Devil XL Auto seeds also offer substantial production for an autoflower, reaching 425–650 g/m² (13.9–21.3 oz/10.8 ft²) indoors and 50–350 g (1.8–12.3 oz) per plant outdoors. Want speed without settling for a tiny plant? These seeds finish in around 9½ weeks from germination.
Big Devil XL Auto Characteristics
| Strain type | Autoflowering |
| Genetics | Big Devil #2 Auto × Autoflowering Jack Herer |
| Indica/Sativa | 31.9% Indica / 65% Sativa / 3.1% Ruderalis |
| THC | 19–20% |
| CBD | 0.8% |
| Effect | Happiness, stimulating, creative, psychoactive |
| Flavor | Incense, spices, lemon, citrus |
| Indoor yield | 425–650 g/m² (13.9–21.3 oz/10.8 ft²) |
| Outdoor yield | 50–350 g/plant (1.8–12.3 oz/plant) |
| Flowering time | 9½ weeks from germination |
| Height | 110–160 cm (43–63 in) |
| Structure | Tall with numerous long lateral branches |
| Bud appearance | Thick, dense buds heavily covered in aromatic resin |
FAQ
Is Big Devil XL Auto seeds Indica or Sativa?
Big Devil XL Auto is Sativa-dominant. Its genetic profile is 65% Sativa, 31.9% Indica, and 3.1% Ruderalis.
What terpenes does this strain have?
Sweet Seeds does not specify individual terpenes in the provided data. Its reported aromatic profile combines incense, spices, lemon, and citrus.
Is this strain good for beginner growers?
The provided breeder information does not specify a difficulty rating, so we would not label it a beginner strain without additional cultivation data.
How to grow Big Devil XL Auto seeds?
Plan enough vertical and lateral room for plants reaching 110–160 cm (43–63 in). The variety develops numerous long side branches and completes its cycle in about 9½ weeks from germination.
How much can Big Devil XL Auto yield?
Reported production reaches 425–650 g/m² (13.9–21.3 oz/10.8 ft²) indoors and 50–350 g (1.8–12.3 oz) per plant outdoors.
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