Autoflower botanical specimen collection

Double Grape

by Mephisto Genetics — Sour Stomper × Grape Crinkle (F7)

THC
21.78-31.8%
Flowering
65-80 days
Yield
500g/m²
Height
55-80cm
Type
60% Indica / 40% Sativa
Difficulty
Beginner

Effects

Potent hybrid—stimulating then sedative; creative, relaxed, sleepy

Flavor Profile

Sweet and sour grapes, gas, berry syrup

Full Specifications

GeneticsSour Stomper × Grape Crinkle (F7)
THC21.78-31.8%
Flowering Time65-80 days
Yield (Indoor)500g/m²
Yield (Outdoor)90-140g/plant
Height55-80cm
Type60% Indica / 40% Sativa
DifficultyBeginner
EnvironmentIndoor; excellent for extraction/hash
Terpenescaryophyllene, linalool, myrcene
RecognitionHighest-tested THC autoflower; Mephisto best-selling Limited Edition, now permanent Reserva

Editorial profile notes

Double Grape sits in the Mephisto Genetics catalog with a listed lineage of Sour Stomper × Grape Crinkle (F7). The profile is best read as a reference snapshot rather than a promise of a specific outcome. Breeder and retailer specifications can describe the same cultivar differently, and phenotype variation matters even within a stabilized line.

The current database record lists a cycle of 65-80 days, a typical height reference of 55-80cm, and a difficulty label of Beginner. Yield references are 500g/m² indoors and 90-140g/plant outdoors where those figures were supplied. We keep these numbers visible because they are useful for comparison, but they should be treated as catalog benchmarks, not guarantees.

The recorded flavor shorthand is Sweet and sour grapes, gas, berry syrup. the listed terpene set includes caryophyllene, linalool, myrcene. The effects note in this database is summarized as Potent hybrid—stimulating then sedative; creative, relaxed, sleepy. These descriptors are subjective and can vary by phenotype, storage, testing method, and individual response, so they are most useful as orientation rather than a laboratory certificate.

Recognition/context: Highest-tested THC autoflower; Mephisto best-selling Limited Edition, now permanent Reserva. Database environment note: Indoor; excellent for extraction/hash.

Data note: Profile fields are compiled for comparison and were reviewed in September 2026. When a number matters to a decision, verify it against the breeder's current release notes because catalogs change.

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