Avg Flower THC
30.8%
across California and Oregon
Granddaddy Purple ranges $0.70–$150 across 353 dispensaries in California and Oregon, as of Sep 28, 2026.
Updated Sep 28, 2026
30.8%
across California and Oregon
353
across California and Oregon
1000
products listed
$1–$150
1000 listings

Granddaddy Purple (also GDP) is an indica-dominant cultivar bred by Ken Estes in San Francisco around 2003. It crosses Purple Urkle with Big Bud, producing the deep purple coloration and grape-berry aroma the strain is named for. GDP became one of the most influential California indicas of the medical-marijuana era and remains a regional flagship.
Ken Estes