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Indica dominant retail shopping label — not genetics

Grand Daddy Purple Fast Strain

Grand Daddy Purple Fast is an indica dominant strain (Grand Daddy Purple × Unknown Strain). 49-day flowering.

Median THC
Flowering
49 days
Breeder releases
1
Avg rating

Indica / Sativa — retail shopping guide

Indica 70%Sativa 30%

Indica, sativa and hybrid are a retail shopping convention — not a reliable guide to genetics or effects. When researchers analysed 89,923 commercial samples across six states, these labels did not predict a plant’s terpene or cannabinoid profile, and a genome-wide study found sativa- and indica-labelled plants to be genetically indistinct (PLOS ONE 2022; Nature Plants 2021). The labels are so fluid that AK-47, a hybrid, won “Best Sativa” at the 1999 Cannabis Cup and “Best Indica” four years later. For an accurate, genetics-true picture, see the chemotype above.

Genetics & Lineage

Parents
This strainGrand Daddy Purple Fast

Breeder releases (1)

BreederTHCFloweringSeedsRating
Plantation Premium Seeds49dfeminized

About Grand Daddy Purple Fast

Grand Daddy Purple (Fast) feminized seeds combine one of the most visually striking indica-dominant cultivars with an accelerated flowering timeline, delivering dense, resin-coated purple buds in roughly seven weeks from lights-flip. This strain produces THC levels at the higher end of the indica spectrum while retaining the deep grape-and-berry character that defines the Grand Daddy Purple lineage. Genetics & Lineage The foundation here is a cross between Purple Urkle and Big Bud, with a third undisclosed fast-flowering hybrid integrated to compress the maturation window without sacrificing potency or terpene expression. Purple Urkle contributes the signature purple coloration and dense, resinous bud structure, while Big Bud — bred specifically for commercial yield — adds mass and increases overall flower weight per plant. The result is a predominantly indica F1 strain, leaning approximately 80% indica, that inherits the best structural and aromatic traits from both parents. The fast-finish genetics are stable across phenotypes, making the accelerated schedule reliable rather than an occasional outlier. Aroma, Flavour & Effects The terpene profile is anchored by Myrcene, which del

Frequently asked questions

What are the genetics of Grand Daddy Purple Fast?
Grand Daddy Purple Fast comes from Grand Daddy Purple × Unknown Strain.
Is Grand Daddy Purple Fast indica or sativa?
Grand Daddy Purple Fast is classified as indica dominant.
How long does Grand Daddy Purple Fast take to flower?
Grand Daddy Purple Fast flowers in about 49 days.
Is Grand Daddy Purple Fast available as feminized or autoflowering seeds?
Grand Daddy Purple Fast is offered as: feminized.