Overview
Hybrid · Cannabis Seeds · Autoflowering seedsGuava Sundae Auto (Fast Buds) Feminized is a hybrid strain from our autoflowering seeds range. Flavour notes: fruity, tropical and dessert.
Highlights
- Tropical depth: Fresh guava upfront, creamy gelato finish layered beneath.
- Cup-winning cross: Guava Auto RF3 (Autoflower World Cup) meets Sundae Thumper F4 (Best Hybrid, American Autoflower Cup 2025).
- F1 vigour: Large, tall frame with strong lateral branching and dense bud stacking.
- Champions Line pedigree: Fast Buds' award-focused breeding programme, autoflowering convenience included.
About this format
Cannabis seeds are sold as collectable souvenirs and for the preservation of genetics. Feminized seeds grow into female plants, autoflowers switch to bloom on their own regardless of light schedule, and regular seeds produce both sexes for breeding. Germination is illegal in many countries — know your local law before you buy.
From the supplier
Two Cup Winners, One Autoflower
Guava Sundae Auto is part of Fast Buds' Champions Line, a breeding programme built on proven performance rather than novelty. The cross brings together two award-winning parents: Guava Auto RF3, Fast Buds' own Autoflower World Cup winner, and Sundae Thumper F4 from Mephisto Genetics, which took Best Hybrid at the American Autoflower Cup 2025. Guava Auto RF3 contributes tropical intensity and a track record for output. Sundae Thumper F4 (a Gelato 45 x Forum Stomper Auto cross) adds resin depth and a creamy terpene character. Ruderalis genetics complete the picture, giving the strain its autoflowering capability. As an F1 hybrid, expect strong vigour across the run, though phenotype expression will show some variation between plants.
Built Big, Runs Without a Clock
Guava Sundae Auto flowers without any light cycle management, which means one less variable to manage from seed to harvest. The plant grows large and tall for an autoflower, with strong lateral branching and tight internodal spacing that supports dense bud stacking and efficient light distribution across the canopy. LST works well here and is worth considering given the plant's frame. Topping is debated for autoflowers generally, so most growers leave it alone and let the structure do the work. Suitable for indoor, outdoor, and greenhouse grows.
Guava at the Front, Gelato at the Finish
The flavour profile runs in two distinct phases. Fresh tropical guava hits first, bright and fruit-forward with a clean, juicy character. The finish shifts into creamy gelato depth, richer and smoother, with the two notes sitting in clear contrast rather than blending into one flat profile. The aroma follows the same arc: tropical and fruity on the nose, with a creamy, dessert-like warmth underneath. It's a layered sensory experience that reflects the lineage directly.
