Guava Sundae Auto (Fast Buds) Feminized

Two Cup Winners, One Autoflower

Guava Sundae Auto is part of Fast Buds' Champions Line, a breeding programme built around proven performance rather than novelty. The cross brings together two award-winning lines: Guava Auto RF3, Fast Buds' own World Cup-winning autoflower known for tropical intensity and high output, and Sundae Thumper F4 from Mephisto Genetics, which took Best Hybrid at the American Autoflower Cup 2025 and contributes heavy resin production and creamy terpene depth. Ruderalis genetics underpin the autoflowering trait. The result is an F1 hybrid feminized autoflower that carries genuine pedigree from both sides of the cross.

Big Plant, Strong Structure

Guava Sundae Auto grows large and tall for an autoflower, with strong lateral branching and tight internodal spacing that supports dense bud stacking throughout the canopy. That structure means light reaches lower sites efficiently, which matters when the plant fills out. LST works well here and is worth considering given the frame size. Topping is debated with autos generally, so most growers stick to low-stress training. The strain suits indoor, outdoor, and greenhouse grows. As with any F1 hybrid, expect some variation in phenotype expression between plants rather than the uniformity you'd get from a stabilised line. That variability tends to show up as performance range rather than a weakness.

Guava Up Front, Gelato on the Way Out

The flavour profile runs in two distinct phases. Fresh tropical guava hits first, bright and fruity with a clean edge. As the smoke develops, a creamy gelato depth comes through on the finish, rounding out the profile into something richer. The aroma follows the same arc: tropical and fruity on the nose, with a smooth, creamy base underneath. It's a layered sensory experience that reflects what each parent brings to the cross.

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