Big Devil XL Autoflower Strain – Sweet Seeds
Big Devil XL Auto by Sweet Seeds is the ultimate evolution of the Super Auto concept, a botanical project aimed at pushing the size and productivity of photoperiod-independent genetics to the absolute limit.
This extraordinary third-generation variety stems from the targeted cross between the famous Big Devil #2 and an elite selection of Jack Herer Autoflowering. The agronomic focus of this operation was to increase the thickness and density of the aerial mass, simultaneously enriching the aromatic profile with the unmistakable citrus and incense nuances typical of the Haze family.
It develops an imposing and highly slender architectural structure, easily exceeding one meter in height. Its branch plane displays vigorous and abundant lateral branching, producing long and sturdy secondary colas that flank a titanic central stem. The calyxes are voluminous, exceptionally fleshy, and swell enormously in the final two weeks, getting covered in a glossy, resinous blanket that drastically increases the specific weight on the scales. It is the ideal genetics for commercial growers seeking XXL yields and complex flavors without having to deal with complex photoperiod changes.
Big Devil XL Autoflowering in brief
This automatic giant completes its entire life cycle (from seed to harvest) in just 9-10 weeks (63-70 days), a record time considering the plant’s final size. Indoors, under intense lighting regimes, it ensures impressive commercial productions estimated between 400 and 500g/m². Outdoors, it expresses monumental productivity, offering between 50 and 350g per plant depending on the pot volume and sun exposure.
THC levels steadily stand around 20%, delivering a clear and prolonged hybrid potency. Vertical elongation is vigorous and constant. The olfactory profile is a masterpiece of the old and new school: a penetrating mix of cathedral incense, fresh lemon, cedar wood, and sweet skunk undertones. It shows phenomenal adaptability to harsh climates and outdoor cultivation.
Technical Sheet
- Genetics: Big Devil #2 Auto x Jack Herer Auto.
- Type: Slightly Sativa-dominant Autoflowering.
- Life Cycle: 9-10 weeks (63-70 days from germination).
- Harvest Outdoor: Continuous cycle from April to October.
- Structural Height: 110-160 cm (Indoor and Outdoor).
- Main Cannabinoids: THC 19-20%, low CBD.
- Terpene Profile: Terpinolene, Limonene, Pinene, Myrcene.
- Quantitative Yield: 400-500g/m² (Indoor) / 50-350g per plant (Outdoor).
- Recommended Techniques: Direct sowing in large pots (15-20L), Low Stress Training (LST), Selective defoliation.
- Extraction Return: Exceptional commercial return in dry extractions (Drysift) with a fresh and incensed tone.
Cultural Management (Indoor and Outdoor)
Indoors, Big Devil XL requires a cultivation setup designed for large sizes. To avoid taproot lock-up, it is mandatory to sow directly into the final container (at least 15-20 liters), providing an aggressive photoperiod of a constant 20 hours of light and 4 of darkness.
Nutrient absorption is voracious: the Jack Herer heritage gives it a considerable appetite, allowing it to support an EC up to 1.6-1.8 at peak floral mass without stress. Maintain a VPD of 1.2-1.3 kPa and utilize light bending (LST) across the branch plane to level the imposing apical zone, maximizing light penetration.
Outdoors or in greenhouses, this variety is a true commercial war machine. Its immense root platform colonizes substrates, guaranteeing fabulous tolerance to summer heat. Thanks to its significant size, the lower branches remain well elevated from the ground, promoting excellent basal airflow.
This anatomy, coupled with the slightly elongated structure of the calyxes, provides a natural immune barrier against humidity, making it an option of absolute safety for high altitude or guerrilla cultivation, where it crushes the competition by guaranteeing yields comparable to photoperiod plants.
Terpene Profile and Effect
The organoleptic bouquet of Big Devil XL is a deep and elegant sensory journey. During the advanced flowering phase, it floods the environment with a penetrating and balsamic scent dominated by spicy incense and cedar wood, immediately lifted by a very fresh and pungent citric note of sour lemon inherited from Jack Herer. On the palate, the smoke is silky, incensed, and leaves a smooth and skunk aftertaste on the tongue.
With THC levels close to 20%, the effect is hybrid and masterfully balanced. It triggers a powerful wave of cerebral euphoria, mental clarity, and motivation that lifts the mood and sweeps away stress. Not being a pure sativa, this mental uplift gently slides toward a warm and enveloping bodily muscle relaxation that unwinds physical tissues without ever causing heaviness or tachycardia. An absolutely perfect daytime or afternoon weed.
Strain Comparisons
- Big Devil XL vs Big Devil #2 Auto: The XL version revolutionizes the aromatic profile by introducing the lemon and incense of Jack Herer. It also guarantees superior structural elongation and distinctly higher commercial yields, at the cost of a life cycle prolonged by just a few days.
- Big Devil XL vs Amnesia Auto (Super Strains): Amnesia Auto focuses on ultra-pure Haze terpenes and an almost entirely cerebral effect. Big Devil XL offers denser resin production, more compact buds, and a decidedly more bodily and relaxing hybrid effect at the end.
FAQ
- Can I transplant it during growth? Strongly discouraged. “Super Auto” genetics base their mass on the rapid development of the main root in the first 15 days; a transplant would stunt growth, causing dwarf plants.
- Does it tolerate the topping technique? No. Being an autoflower, its rapid hormonal cycle does not forgive high-impact stress. Use exclusively LST (bending) to widen the canopy horizontally.
- How long should the root flush last? An accurate flush of at least 10-12 days with pH-controlled water only is recommended to eliminate salts from the substrate and maximize the freshness of the citric notes.
Annibale Seedshop’s Opinion
Big Devil XL Autoflowering by Sweet Seeds is an agronomic triumph for lovers of the Jack Herer family who desire the convenience of the automatic format. Our team highly recommends it to those seeking XXL yields, high-school incensed flavors, and automatic plants up to one and a half meters tall. A tireless producer that will fill jars with resinous, unforgettable buds.
