Granddaddy Purple — strain profile, effects & genetics

Granddaddy Purple (GDP) is the iconic purple indica: heavy violet buds, grape-berry aroma, deep body relaxation.

Granddaddy Purple is a Indica (Big Bud × Purple Urkle) with 17–23 % THC and < 1 % CBD. Effects: heavily sedating, heavy body, sleep-inducing, pain-relieving. Dominant terpenes: Myrcene, Caryophyllene, Pinene. Aroma: Grape, berry, sweet, with a floral backdrop.

Short definition

Granddaddy Purple is a Indica strain bred from Big Bud × Purple Urkle. Origin: San Francisco (Ken Estes), 2003.

Granddaddy Purple (GDP) is the iconic purple indica: heavy violet buds, grape-berry aroma, deep body relaxation.

Type & Genetics & origin

Type: Indica.

Genetics: Big Bud × Purple Urkle.

THC and CBD levels

Typical values in well-bred phenotypes: THC 17–23 %, CBD < 1 %. In Switzerland, hemp flowers under 1% THC are sold legally as CBD cannabis; psychoactive phenotypes are only accessible via the controlled pilot trials or a doctor's prescription.

Effects

Reported effects: heavily sedating, heavy body, sleep-inducing, pain-relieving.

As with any strain, the experience depends on dose, tolerance, set and setting.

FAQ

Is Granddaddy Purple Indica or Sativa?

Granddaddy Purple is a Indica.

Is Granddaddy Purple strong?

Typically 17–23 % THC — so moderate.

Which terpenes dominate in Granddaddy Purple?

Mainly Myrcene, Caryophyllene, Pinene.

Does Granddaddy Purple make you sleepy?

Yes, it leans relaxing to sedating — especially in the evening.

Is Granddaddy Purple legal in Switzerland?

As a CBD version (< 1% THC) yes. THC-rich genetics are only accessible via the pilot trials or a medical prescription.

Granddaddy Purple Strain — Effects, Genetics, THC & Terpenes (2026)