Mendo Frost Auto is part of Fast Buds’ Champions Line and Collaboration Series, which brings together award-winning autoflower genetics from top breeders. This F1 hybrid crosses two lab-proven heavyweights: the latest Frostbanger Auto F4, the strongest autoflower tested at the Autoflower World Cup, and Mendo Breath Auto IBL (GMO Auto x Mendo Auto) from Atlas Seed, the top performer in laboratory testing at the American Autoflower Cup in California.
The concept was simple: merge two of the most potent autos available into one next-generation hybrid. Atlas supplied Mendo Breath Auto IBL seeds that are not normally available to the public, and Fast Buds handled selection in-house, crossing elite Mendo Breath plants with the best of the newest Frostbanger generation.
Fast Buds lists THC at 26-31% and a 60% indica / 40% sativa balance. As an autoflower it needs no light switch, so 18/6 or 20/4 works throughout, and harvest comes about 9-10 weeks from seed. Plants are XL at 70-120 cm (28-47 in), with indoor yields of 500-600 g/m² (1.6-2 oz/ft²) and 80-220 g (2.8-7.8 oz) per plant outdoors.
This is an early F1 release: the seeds have passed Fast Buds’ germination standards, while in-house testing continues.
Frost, Sweetness and Serious Strength
Fast Buds’ first observations note clear hybrid vigor and extremely resinous flowers that look as if they were dipped in sugar. The buds are dense and compact, with frost layered thickly over every surface.
The terpene profile is listed as sweet, spicy and fresh, a clean, bright mix that sits well alongside the plant’s heavy resin.
Fast Buds growers most often report feeling relaxed and happy, along with uplifted, hungry and sleepy moments. With a THC range this high, small doses go a long way.
Growing a Champions Line Auto
Mendo Frost Auto is aimed at growers who want to push potency and bag appeal. Give it a roomy container, steady 18/6 or 20/4 light and light low-stress training early to open up the canopy.
The resin output makes it a natural fit for hash, rosin and other extracts. Keep humidity in check in late bloom, and harvest when the trichomes reach the maturity you prefer.
Mendo Frost Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Frostbanger Auto F4 x Mendo Breath Auto IBL (F1 hybrid) |
| Indica/Sativa | 40% Sativa / 60% Indica |
| THC | 26-31% |
| CBD | Less than 1% |
| Effect | Relaxed, happy, uplifted |
| Flavor | Sweet, spicy, fresh |
| Indoor yield | 500-600 g/m² (1.6-2 oz/ft²) |
| Outdoor yield | 80-220 g/plant (2.8-7.8 oz/plant) |
| Seed to harvest | 9-10 weeks |
| Height | 70-120 cm (28-47 in), XL size class |
| Climate | Indoors, outdoors, greenhouse or mixed-light; any season with warm, stable weather outdoors |
| Best cultivation technique | Early LST |
FAQ
What are the parents of Mendo Frost Auto?
Frostbanger Auto F4 from Fast Buds crossed with Mendo Breath Auto IBL (GMO Auto x Mendo Auto) from Atlas Seed.
Is Mendo Frost Auto a collaboration?
Yes. It belongs to Fast Buds’ Champions Line and Collaboration Series. Atlas Seed provided Mendo Breath Auto IBL seeds and Fast Buds carried out the selection.
How strong is Mendo Frost Auto?
Fast Buds lists THC at 26-31%.
Is this a finished, fully tested line?
It is an early F1 release. The seeds have passed Fast Buds’ germination standards, and in-house testing is ongoing.
How long does it take?
About 9-10 weeks from seed to harvest, under 18/6 or 20/4 light.
What yield can I expect?
Indoors, 500-600 g/m² (1.6-2 oz/ft²). Outdoors, about 80-220 g (2.8-7.8 oz) per plant.
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