Guava Auto is built around one goal: loud tropical terpenes with resin to match. Fast Buds built this three-way polyhybrid by crossing Gorilla Cookies Auto F5 with Kosher Cake and then combining that hybrid with Tropicana Cookies Auto F5. The result was refined into a stable F3 feminized line.
It is an evenly balanced hybrid at 50% Sativa / 50% Indica, and it stays manageable at 70-120 cm (28-47 in) in the XL size class. Plants form one leading cola with tight, compact side branches, which suits both small tents and outdoor plots.
Under 18/6 or 20/4 light, with no schedule switch, it finishes from seed in just 8-9 weeks (about 56-63 days). Fast Buds lists 450-550 g/m² (1.5-1.8 oz/ft²) indoors and 60-200 g (2-7 oz) per plant outdoors.
This is the original Guava Auto. Fast Buds has since released an upgraded RF3 version with higher potency and yields, but the original remains a fast, reliable, and very fruity autoflower in its own right.
Tropical Terps and Extract-Grade Resin
Late in bloom the flowers harden into tight clusters glazed with sticky resin, and many plants flash pink and red tones as harvest approaches.
The smell is a sugary tropical blast, with ripe guava and a basket of mixed fruit up front, with a soft, creamy cookie note underneath from its Cookies lineage. That profile carries over into concentrates, where Guava Auto keeps its terpenes well and presses into a smooth, flavorful product.
Rated at up to 28% THC, it is a strong smoke, yet the effect most growers report is calm and good-humored: mostly relaxed and happy, with some creativity and a lifted mood.
Growing Guava Auto
Fast Buds rates it as highly tolerant of mold and pests, which makes it a strong candidate for outdoor and greenhouse grows. It thrives with basic care: steady feeding, good airflow, and maybe a light LST session to open up the side branches.
Guava Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | (Gorilla Cookies Auto F5 x Kosher Cake) x Tropicana Cookies Auto F5 |
| Generation | F3 feminized three-way polyhybrid autoflower |
| Indica/Sativa | 50% Indica / 50% Sativa |
| THC | Up to 28% |
| CBD | Less than 1% |
| Effect | Relaxed, happy, lightly creative |
| Flavor | Ripe guava, tropical fruit, sweet, creamy cookie |
| Indoor yield | 450-550 g/m² (1.5-1.8 oz/ft²) |
| Outdoor yield | 60-200 g/plant (2-7 oz/plant) |
| Seed to harvest | 8-9 weeks (56-63 days) |
| Height | 70-120 cm (28-47 in) |
| Size class | XL |
| Climate | Mold and pest resistant; well suited to outdoor grows |
| Best cultivation technique | Basic care, light LST, 18/6 or 20/4 light |
FAQ
What is the difference between Guava Auto and Guava Auto RF3?
Guava Auto is the original F3 polyhybrid with up to 28% THC and 450-550 g/m². The RF3 version was refined over eight generations and is rated at up to 30% THC, up to 600 g/m², and the larger XXL size class.
What are the genetics of Guava Auto?
Fast Buds crossed Gorilla Cookies Auto F5 with Kosher Cake, then bred that hybrid to Tropicana Cookies Auto F5. The result is a feminized F3 three-way polyhybrid.
How long does Guava Auto take from seed to harvest?
About 8-9 weeks (56-63 days). As an autoflower it needs no light change, so 18/6 or 20/4 works for the whole cycle.
Is Guava Auto good for outdoor growing?
Yes. Fast Buds rates it as highly tolerant of mold and pests, and outdoor plants can yield 60-200 g (2-7 oz) each.
Is Guava Auto good for extractions?
It was bred with concentrates in mind. The sticky trichome coverage and strong guava terpenes hold up well in hash and rosin.
What does Guava Auto taste like?
Sweet, ripe guava and mixed tropical fruit lead, with a soft, creamy cookie background.
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