ChloroFileGranddaddy Purple
Indica variety from Homegrown Cannabis Co, flowering in 8-10 wks. Reference data for planning a grow, not a measurement of your plant.
Catalogue data last updated 17 October 2026.
10 breeders sell Granddaddy Purple
Homegrown Cannabis Co is one of them. Photoperiod versions finish anywhere from week 7 to week 12. Compare every version side by side.
Where it came from
| Lineage | Purple Urkle x Big Bud |
What growers describe
Reported by catalogs and growers, not measured from a plant.
Reported effects
- Calming
- Relaxing
- Full-body
- Relaxed
- Sleepy
- Happy
- Euphoric
- Hungry
- Dry Mouth
- Paranoid
Flavors
- Berry
- Grape
- Sweet
- Orange
Measured samples
Medians of public flower-lot lab results for samples sold under the name Granddaddy Purple, from the Cannlytics Hawaii dataset (CC BY 4.0). Market samples sharing the cultivar name, not a measurement of Homegrown Cannabis Co’s version and not a guarantee for any seed you buy.
| Total THC | 16.01% median · 3 samples |
| THCA | 18.1% median · 3 samples |
| Δ9-THC | 0.21% median · 3 samples |
| Total CBD | 0.04% median · 3 samples |
| CBD | 0% median · 3 samples |
| Latest test | 2020-06-10 |
Schedule and VPD targets
Vapour pressure deficit targets by stage, measured from leaf temperature rather than air temperature. The same bands ChloroFile charts against.
| Stage | When | VPD target |
|---|---|---|
| Seedling | Weeks 1-2 | 0.4 - 0.8 kPa |
| Vegetative | Until you flip | 0.8 - 1.2 kPa |
| Early flower | Flower weeks 1-3 | 1.0 - 1.5 kPa |
| Late flower | Flower weeks 4-10 | 1.2 - 1.6 kPa |
Counting from the flip, expect to harvest between week 8 and week 10.
Where to look next
Grouped by how each one is related to this variety rather than ranked into a single list, because those are different questions.
Crosses made from this
Varieties that name this one as a parent.
- Panty PunchSeedstockers · similar effects, same type
- Cherry PieRoyal Queen Seeds · similar flavour
- Sueno Purple Punch AutoNarcos Seedbank · similar flavour
If you liked this
No shared parentage, but they line up on type, flowering time and reported character.
- Grape CookiesPurple Caper Seeds · similar flavour, similar effects
- Critical KushPhilosopher Seeds · similar effects, similar potency
- BlackwaterOriginal Sensible Seeds · similar effects, similar potency
- Hindu KushAnesia Seeds · similar effects, same type
Track one of these
ChloroFile carries this whole reference offline. Pick a variety when you add a plant and it fills in the type, seed type, and flowering window, then logs what actually happened against it.