Sour Apple Auto by Humboldt Seed Company brings 20–24% THC, a sharp apple-and-gas profile, and an uplifting, ethereal ride. This sativa-dominant autoflower finishes in just 75–85 days from seed to harvest, producing frosty, dense nugs with striking purple and green tones.
Sour Apple Auto combines Magic Melon Auto with Humboldt Sour Diesel. The breeding work selected high-THC plants and refined the line through Bx3 breeding. The result is a sativa-dominant Autoflowering cultivar with minor variation and a fast 75–85-day seed-to-harvest cycle.
Humboldt Seed Company developed this cultivar through a breeding project that began in 2019.
The flowers grow dense and frosty, mixing purple and green beneath a heavy resin coat. Behind that good-looking exterior sit bold effects, an expressive aroma, and a memorable flavor. We think that combination gives this strain real character instead of another forgettable sweet profile.
Effects
The effects lean uplifting and ethereal. With 20–24% THC, Sour Apple Auto carries substantial potency without losing the lively personality described in its genetics. The experience can feel euphoric, buoyant, and gradually relaxing.
Think of the effect as a loose balloon lifting the mind while the body stays comfortably tied to the ground. There is elevation, but there is also a softer physical side underneath it. That balance gives the cultivar an appealing personality for consumers who enjoy a brighter cannabis experience.
Would you choose sweetness or gas? Here, you do not have to. Sour Apple Auto delivers both, wrapped around a lively mental lift and an airy sense of relaxation. For us, that contrast is the reason to put this one in the grow room.
Flavor
The flavor starts with apple sweetness, but it does not stay polite for long. Gas rolls in underneath and gives every pull a rougher edge. We really like this strain because those two sides play against each other instead of fighting for attention.
Imagine biting into a crisp apple beside an old fuel pump on a hot afternoon. Strange? Sure. But that contrast captures the experience. The fruit keeps things bright while the fuel notes add depth and attitude. The aroma follows the same road, moving between sweet orchard fruit and pungent gas.
Sour Apple Auto Characteristics
| Strain type | Autoflowering feminized |
| Genetics | Magic Melon Auto x Humboldt Sour Diesel |
| Indica/Sativa | Sativa dominant |
| THC | 20–24% |
| Effect | Uplifting, ethereal, euphoric, relaxing |
| Flavor | Apple, gas |
| Flowering time | 75–85 days from seed to harvest |
| Bud appearance | Dense, frosty purple and green nugs |
| Structure | Sativa dominant |
FAQ
Is Sour Apple Auto seeds Indica or Sativa?
Sour Apple Auto is sativa dominant. Its Magic Melon Auto and Humboldt Sour Diesel parentage supports its lively, uplifting character.
What terpenes does this strain have?
The breeder does not specify individual terpenes. The confirmed aromatic profile combines sweet apple with pronounced gas notes.
Is this strain good for beginner growers?
Its autoflowering format and 75–85-day seed-to-harvest cycle can simplify scheduling, although the breeder does not provide an official difficulty rating.
How to grow Sour Apple Auto?
Plan around its 75–85-day complete life cycle. The available breeder information does not specify a preferred training technique, yield target, or ideal plant height, so those details should not be treated as fixed traits.
How potent is Sour Apple Auto?
The breeder reports 20–24% THC. That puts the cultivar firmly in high-potency territory while pairing its strength with an uplifting and ethereal effect profile.


