Grape Skunk Auto
Grape Skunk Auto for South African growers — indica genetics at 20% THC, reported as euphoric, creative, calm. Sourced grow figures on the page, plain packaging, delivered nationwide.
Royal King Genetics — Seed-Lot Testing
Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-09-22 on 500 seeds.
About Grape Skunk Auto
Days 1 to 14, seed to fourth node: Expect Grape Skunk to crack in roughly 48 hours on damp paper towel and to break soil by day three. Early growth comes in low and wide — broad seed leaves first, then the dark fan leaves the indica side is known for. Four nodes by the end of week two, stacked close together. Damping off is rare if you hold near 70% humidity through this stage.
Weeks 3 to 6, building the frame: Top at the fourth node and the laterals take over fast. A 60 x 60 cm footprint filled by week five is normal, still under 40 cm tall, which is what makes this workable in a small tent.
Bloom, weeks 1 to 60: The 88/12 character becomes obvious here. Linalool usually shows in week three and strengthens from there, with trichome cover visible without a loupe from about week five. Indoor yield: up to 200 g/m2. Height: 90-120 cm. Medium. Tested at 20% THC. Difficulty: easy.
The Aromatic Three
Leading with Linalool, then Myrcene, and Caryophyllene underneath.
Difficulty: easy. In flower for 50-60 days. Stands 90-120 cm. Medium. Indoors it returns up to 200 g/m2. Outdoors, up to 200 g/plant a plant.
Effects
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In the Packet
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Grape Skunk Auto — Breeder Information
Royal King GeneticsRecreated and stabilised by Royal King Genetics, the breeding team behind this catalogue. Seed lots are germination-tested before they ship. More on the breeding process and about page.
Grape Skunk is an autoflowering line that has been progressed through five rounds of Royal King Genetics autoflower stabilisation. The autoflower trait is recessive — fixing it takes multi-generation work — and at F5 the auto trigger and finish window are welded across the pack.
Lock the autoflower trait in Grape Skunk through five generations of selection.
Chosen for trichome coverage, stout structure and consistent flowering time across the pack.
Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.