Granddaddy Purple s1 preserves Granddaddy Purple rather than crossing it. The cut (the other California purple benchmark) was reversed onto itself, so both sides of every seed trace to it. It carries sweet, fruity and floral over an earthy base. A clone-only plant has no other way of surviving in seed.
Genetic Lineage
- Mother and Father: Granddaddy Purple, selfed. The other California purple benchmark. Its own cross is contested - its breeder gives Mendo Purps, Skunk and Afghan, while many sources give Purple Urkle x Big Bud. The lineage argument is the interesting part: the breeder's own account gives Mendo Purps, Skunk and Afghan, while most third-party listings give Purple Urkle crossed to Big Bud. Those are different plants and no source reconciles them.
- What a reversal is for. It puts a clone-only plant into seed without introducing anything foreign. That is preservation work rather than breeding, and it is most of what Humboldt CSI actually do.
- Reading a pack of a self. There is no second parent introducing anything new. Selfing surfaces traits the clone carries quietly, so expect range rather than uniformity, and that spread is the point.
Flavor and Aroma Profile
- The Aroma. Grape and berry over earth.
- The Taste. Sweet grape with a berry finish.
Cultivation and Growth Traits
- Plant Structure. Indica-built, heavy colour.
- Vegetative Phase and Stretch. Shape the plant before the flip. Correcting a frame in week six is harder work than setting it in week two.
- Flowering Time. Granddaddy Purple runs around eight weeks. Start checking trichomes a week before you expect to be ready.
Effects and Experience
- The Mind. Growers describe Granddaddy Purple as settled and heavy.
- The Body. Reported in line with that. This is not a plant described as pulling in two directions.
In the pack
Feminized seeds from Humboldt CSI. The point of their catalogue is access - cuts that otherwise only move between growers who already know each other, put into a form you can actually buy. Authentic Humboldt CSI genetics.
Granddaddy Purple s1 – Humboldt CSI
- Brands CSI Humboldt
- Product Code: 12
- Availability: Out Of Stock
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$150.00
Tags: cannabis seeds, feminized seeds, Humboldt CSI, CSI Humboldt, Granddaddy Purple, strain guide

