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Granddaddy Purple

indica

Also known as: GDP, Grand Daddy Purp, Granddaddy Purps, Grand Daddy Purple

THC17–23%
CBD0.1–0.3%
OriginUnited States

Granddaddy Purple is an iconic California indica bred by Ken Estes, famous for its stunning deep purple buds, intense grape-berry aroma, and profoundly sedating effects. An essential strain for insomnia, chronic pain, and deep physical relaxation.

Overview

Granddaddy Purple, affectionately known as GDP, is a quintessential California indica that has become the definitive purple cannabis strain since its introduction by breeder Ken Estes in 2003 in the San Francisco Bay Area. Created by crossing the world-famous Purple Urkle with Big Bud, GDP inherits the profound grape and berry flavors of its Purple Urkle parent while acquiring the impressively large, dense bud structure characteristic of Big Bud. This combination resulted in a strain that is as visually spectacular as it is medicinally powerful, cementing GDP's status as one of the most recognizable and beloved indicas of all time. The visual presentation of Granddaddy Purple is nothing short of spectacular. The buds are large and tightly compacted, displaying a breathtaking tapestry of deep purple, lavender, and forest green hues beneath a thick blanket of glistening white trichomes. Bright orange pistils weave throughout the flowers, adding to the visual complexity that makes GDP one of the most photographed cannabis strains in existence. The color intensity is largely due to high concentrations of anthocyanins activated by cooler nighttime temperatures during the flowering stage. The aroma profile is dominated by sweet grape and berry notes reminiscent of fresh concord grapes and mixed berry jam, underscored by subtle earthy and floral tones. The flavor experience closely follows the aroma, delivering a smooth, sweet grape and blueberry taste that makes GDP exceptionally pleasant to consume. The effects are classically indica in nature — heavy, sedating, and profoundly relaxing from head to toe. The initial onset brings a pleasant cerebral euphoria that quickly melts into a deep, full-body stone that can anchor users to the couch. These powerful sedative properties make GDP one of the most prescribed medical cannabis strains for insomnia, chronic pain, muscle spasms, and stress. From a cultivation standpoint, GDP is considered moderately easy to grow and performs exceptionally well both indoors and outdoors. The plants remain compact and bushy, making indoor growing particularly straightforward, and the 8 to 9 week flowering period yields generous harvests of visually stunning, highly aromatic buds.

Effects

Positive Effects

Relaxation●●●●●Euphoria●●●○○Sleepiness●●●●●Happiness●●●○○

Medical Benefits

Insomnia Relief●●●●●Pain Relief●●●●●Muscle Relaxation●●●●

Side Effects

Dry Mouth●●●○○

Terpenes

Ocimene
0.22%

Genetics

mother

Purple Urkle

father

Big Bud

Growing Info

Difficulty

easy

Flowering Time

60 days

Yield (Indoor)

400-500g/m²

Yield (Outdoor)

500-600g/plant

Height (Indoor)

90-120cm

Height (Outdoor)

120-150cm

Flavors

grapeberrysweetearthyfloral

Aromas

grapeberrysweetearthyfloral

Colors

purplegreenorange