Grandpa Urkle (Purple Urkle x GrandDaddy Purple) sits between Purple Urkle and Granddaddy Purple: a Mendocino Purps selection pulled out of the Emerald Triangle around 1990 on one side, the other California purple benchmark on the other. Humboldt CSI work almost entirely from clones they hold themselves, so both sides of this are the real thing rather than a seed-line approximation of it.

Purple Urkle sits on the seed side here, Granddaddy Purple on the pollen side. If you have seen these two names paired the other way round, that is a different pack and not this one.

Genetic Lineage

• Mother: Purple Urkle. A Mendocino Purps selection pulled out of the Emerald Triangle around 1990. Dense purple flower in a closed canopy is where mould starts.
• Father: Granddaddy Purple. The other California purple benchmark. Built from 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.
• The point of the pairing. Neither parent needed rescuing. Putting them together is about what sits between them, not about fixing either one.

Flavor and Aroma Profile

Two profiles that stay distinguishable rather than collapsing into one.

• The Aroma. Sweet grape and dark berry over earthy skunk, myrcene-dominant from the Purple Urkle side, against grape and berry over earth from the Granddaddy Purple side.
• The Taste. Grape and berry turning earthy and musky up front, turning to berry sweetness over earth through the exhale.

How the two sides differ

• They are not on the same clock. Purple Urkle runs around eight weeks indoors, inside a seven to nine week window; Granddaddy Purple runs around eight weeks. Across a pack that gap shows up as plants finishing days or weeks apart.
• Where the nose comes from. One side gives sweet grape and dark berry over earthy skunk, myrcene-dominant; the other gives sweet, fruity and floral over an earthy base. Plants landing in the middle are the keepers.
• Build. On the Purple Urkle side: compact and indica-built; deep purple colour hardest where night temperatures drop late. On the Granddaddy Purple side: indica-built, heavy colour. Select early rather than trying to train your way out of it.
• They pull differently. Growers put Purple Urkle at settled and unhurried; the heavy, physical end and Granddaddy Purple at settled and heavy. Which end a plant lands on is the main variable.

Cultivation and Growth Traits

• Plant Structure. The two parents disagree here, so plan for range. Purple Urkle is compact and indica-built; deep purple colour hardest where night temperatures drop late. Granddaddy Purple is indica-built, heavy colour.
• Vegetative Phase. Top or train before you flip rather than chasing the canopy afterwards.
• Flowering Time. The parents are not on the same clock. Purple Urkle runs around eight weeks indoors, inside a seven to nine week window, Granddaddy Purple around eight weeks. Judge each plant on trichomes rather than pulling the room together.

Effects and Experience

• The Mind. Growers describe Purple Urkle as settled and unhurried; the heavy, physical end.
• The Body. Granddaddy Purple is reported as settled and heavy, and that is the side supplying the weight here.

In the pack

Feminized seeds from Humboldt CSI. Humboldt CSI are preservationists before they are breeders - most of what they release is a clone somebody has kept alive by hand for years, put into seed so it stops depending on one grower staying in the game. That is what you are buying into here. Genuine Humboldt CSI stock.