Granddaddy Purple - The Bay Area Indica That Set the Purple Standard
Granddaddy Purple, also known as GDP, is a heavy indica bred by Ken Estes in the San Francisco Bay Area in 2003. The cross of Purple Urkle and Big Bud produced a cultivar that combined the deep grape aroma of Urkle with the dense bud structure of Big Bud, and GDP went on to become the reference cultivar for "purple indica" in California and beyond.
Granddaddy Purple, also known as GDP, is a heavy indica bred by Ken Estes in the San Francisco Bay Area in 2003. The cross of Purple Urkle and Big Bud produced a cultivar that combined the deep grape aroma of Urkle with the dense bud structure of Big Bud, and GDP went on to…
TL;DR
Granddaddy Purple is heavy indica (~85I/15S). THC typically 17–23%. Dominant terpenes: myrcene, pinene, caryophyllene. Effects: full body relaxation, sleep onset, appetite, mood support; widely considered a "before bed" strain. Available at Greenleaf Wellness in flower, pre-rolls, vape, and concentrate.
Lineage and history
Bred by Ken Estes (Grand Daddy Purp Collective) in the San Francisco Bay Area in 2003, crossing Purple Urkle (the deep-purple grape-aroma parent) with Big Bud (the structure parent). Stabilized as a clone-only line and later seeded out, GDP became one of the most-prescribed strains for nighttime medical use in California's pre-2016 medical-only market and remains a staple of evening menus.
Cannabinoid profile
THC commonly 17–23% - modest by 2026 standards but appropriate for sleep applications where ceiling is not the priority. CBD under 0.5%. Trace CBN is reported at month 2–3 of cure, contributing to the heavier sedation arc; properly aged GDP delivers more sleep effect than fresh GDP.
Terpene profile
Effect profile
Onset 10–20 minutes inhaled (slower than sativa-leaning cultivars). Peak 30–60 minutes. Duration 2–4 hours, with sleep often arriving inside that window. Reported effects: full body relaxation, drowsy mood lift, appetite, eventual sleep onset. GDP is one of the few strains where users report the body-effect arriving before the head-effect, which is the opposite of GSC and Wedding Cake.
Who Granddaddy Purple suits
Evening wind-down - many customers choose GDP for the end of the day. Reported effects vary by individual; this is not medical advice and has not been evaluated by the FDA. Consult a licensed provider about your own situation.
Body relaxation and wind-down in evening contexts.
Users wanting the classic California "purple indica" experience.
Not recommended for daytime function, focus tasks, or social events that go past one hour.
Forms we stock
Flower jars (eighth, quarter, half, ounce), pre-rolls (single + pack), 510 carts (distillate and live resin), disposable pens, live-resin concentrate. Edibles with GDP extract are popular as nighttime gummies. Check the live menu.
Dosing
Inhaled: one or two pulls, wait 15 minutes - the slower onset means new users sometimes overshoot by re-dosing too early. Edibles with GDP extract follow the 5 mg start. Time edible dose 60–90 minutes before desired sleep onset for best results.
Compliance
Adults 21+ only · Keep out of reach of children and pets · Cannabis cannot be transported across state lines · Do not drive or operate machinery under the influence · Single-transaction cap: 2.5 oz flower or 0.25 oz (1/4 oz) concentrate.
For other indica options, see OG Kush. For full chemovar context, see Indica vs Sativa. For dosing edibles for sleep specifically, see Edibles Dosing Chart.
Greenleaf Wellness is licensed by the Nevada Cannabis Compliance Board. 1730 Glendale Avenue, Sparks NV 89431. Adults 21+ only. Keep out of reach of children and pets.
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1730 Glendale Avenue · Sparks NV · 8 AM–10 PM daily.
You must be 21 or older with a valid government-issued photo ID to purchase cannabis products at Greenleaf Wellness.
Cannabis may impair concentration, coordination, and judgment. Do not operate a vehicle or machinery under the influence of cannabis.
Greenleaf Wellness is a licensed Nevada cannabis dispensary operating under retail license D056 and cultivation license RC050, regulated by the Nevada Cannabis Compliance Board. Cannabis cannot be transported across state lines.