Granddaddy Purple Seeds
Classic grape flavor, 25% THC, beginner-friendly grow
$50.15 – $143.657 pack sizes — choose at ILGM
Guaranteed germination · Free US shipping over $50 · Discreet packaging
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Our take
Granddaddy Purple is a well-known indica-dominant strain bred from Purple Urkle and Big Bud by Ken Estes. With THC levels around 25%, it delivers a noticeable, relaxing experience alongside a genuinely grape-forward aroma. These feminized, photoperiod seeds are rated beginner-friendly, making GDP a solid first serious grow for someone who wants results without a steep learning curve.
Grow specs
Specs are ILGM's published figures for this product; catalog and pricing last verified August 2026. Our write-up is our own — see how we make money.
Growing notes
GDP suits both indoor and outdoor setups. Indoors, expect a flowering window of around 77 days; outdoors, plants are typically ready for harvest in October. Plants reach a medium height and produce medium-to-large dense buds. Rated beginner-friendly, it's forgiving enough for a first photoperiod grow while still rewarding growers who dial in their environment. Continental and Mediterranean outdoor conditions work well.
New to growing? Start with the complete guide, plan your gear with tent setups, and diagnose problems with troubleshoot.
Want variety instead?
Mix packs bundle three proven strains (30 seeds) at up to 50% off buying separately — the best value in the catalog.
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