Mango Frost Auto is all about resin and strength. Fast Buds crossed Mango Runtz F5 Auto from Mephisto Genetics, Best New Autoflower 2025 at the Autoflower World Cup, with its own Frostbanger Auto, named Strongest Autoflower 2025 at the same event. The goal was to pair tropical sweetness and a fast finish with raw power and heavy trichome output.
The result is an F1 hybrid feminized autoflower with up to 30% THC and 65% sativa / 35% indica genetics. It flowers automatically, so you can keep the lights at 18/6 or 20/4 from day one, and it is ready in about 8 weeks from seed.
Fast Buds puts it in the XL class at 70-110 cm (28-43 in), but the plant spends its energy on flowers rather than stretch. Indoors it yields 450-550 g/m² (1.5-1.8 oz/ft²); outdoors, 60-180 g (2-6 oz) per plant.
That compact build with weighty buds makes it a dependable choice for growers working in limited space who still want top-shelf results.
Frost, Cream and a Hint of Gas
From early flower, buds start stacking into compact, chunky colas that grow greasier and frostier every week. By harvest they are dense, sticky and look like they were rolled in sugar.
The terps play bright against heavy. Sweet mango opens the show, then the profile slides into a richer mix of cream, gas and a gentle sourness. The aroma is intense and fills the room quickly, and it carries through into a full, rich smoke.
Fast Buds growers most often describe the effect as happy and relaxed, with an uplifted, creative or giggly side. With THC this high, start slow.
A Strong Pick for Extract Makers
Mango Frost Auto was bred with frost in mind, so it is a natural choice for hash, rosin and dry sift. Harvest at the right moment and keep the cure slow to protect the mango and cream notes.
In the grow room, give it a good-sized container, steady lights and light training early. Ventilation and carbon filtration are a good idea in late bloom given how loud the aroma gets.
Its short cycle and modest height also make Mango Frost Auto easy to slot into a balcony or backyard grow during the warm months, with a harvest that arrives in roughly two months.
Mango Frost Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Mango Runtz F5 Auto x Frostbanger Auto (F1 hybrid) |
| Indica/Sativa | 65% Sativa / 35% Indica |
| THC | Up to 30% |
| CBD | Less than 1% |
| Effect | Happy, relaxed, uplifted, creative |
| Flavor | Sweet mango, cream, gas, light sour |
| Indoor yield | 450-550 g/m² (1.5-1.8 oz/ft²) |
| Outdoor yield | 60-180 g/plant (2-6 oz/plant) |
| Seed to harvest | About 8 weeks |
| Height | 70-110 cm (28-43 in), XL size class |
| Climate | Indoors, outdoors, greenhouse or mixed-light; any season with warm, stable weather outdoors |
| Best cultivation technique | Early LST, carbon filter in late bloom |
FAQ
What are the parents of Mango Frost Auto?
Mango Runtz F5 Auto from Mephisto Genetics crossed with Fast Buds’ Frostbanger Auto, making an F1 hybrid feminized autoflower.
Which awards are in its lineage?
Mango Runtz F5 Auto was Best New Autoflower 2025 and Frostbanger Auto was Strongest Autoflower 2025, both at the Autoflower World Cup.
How strong is Mango Frost Auto?
Fast Buds lists THC at up to 30%.
Is Mango Frost Auto good for hash and rosin?
Its buds are coated in heavy frost, and Fast Buds describes it as resin focused, so it is well suited to extraction.
Does it stay compact?
It stays low and manageable at 70-110 cm (28-43 in), putting energy into dense flowers instead of stretch.
How long until harvest?
About 8 weeks from seed under 18/6 or 20/4 light.
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