Granddaddy Purple
Earn Granddaddy Purple (GDP) is a legendary indica-dominant cultivar that’s been turning heads since it hit the scene in 2003. Bred from Purple Urkle and Big Bud, it’s famous for its deep purple buds, fiery orange hairs, and a thick coat of frosty trichomes. The aroma is a sweet mix of grape and berry, and the flavor follows through with a smooth, fruity smoke. This cultivar packs a punch with THC levels often reaching 20% or more, delivering a full-body experience that’s perfect for winding down. Growers love GDP for its dense, resinous buds and generous yields. It flowers in about 8–10 weeks and thrives both indoors and out, especially in warm, dry climates. If you’re after a classic strain with strong bag appeal and a chill vibe, Granddaddy Purple is a solid pick.
Description
More About Granddaddy Purple
Granddaddy Purple doesn’t just look good—it smells and tastes like a fruit basket. Crack open a jar and you’re hit with a wave of sweet grape and berry aromas, with a touch of earthy spice underneath. The flavor follows through with a smooth, fruity smoke that’s both rich and satisfying. It’s the kind of cultivar that makes you want to savor every hit. Whether you’re rolling up or packing a bowl, GDP delivers a flavorful experience that keeps folks coming back.
Vibrantly Colored Plants
Granddaddy Purple is a showstopper in the garden. Its buds are a deep, rich purple, often contrasted by fiery orange hairs and a thick layer of frosty trichomes. The leaves can take on shades of violet and green, creating a striking visual appeal. This vibrant coloration is due to high levels of anthocyanins, pigments that become more pronounced in cooler temperatures, especially during the late flowering stage. Growers aiming to enhance these purple hues often lower nighttime temperatures slightly to encourage this natural process.
Indica Effects
Granddaddy Purple hits fast and deep. It starts with a mellow head buzz that clears your mind and lifts your mood. Then the body high kicks in—heavy, warm, and all-encompassing. It’s the kind of strain that makes your limbs feel weightless and your couch feel like the best place on Earth. Perfect for late nights, movie marathons, or just zoning out after a long day. Expect to feel relaxed, maybe a little giggly, and definitely hungry. If you’re looking for a cultivar that delivers a deep chill, Granddaddy Purple’s got you covered.
All The Flavor
Granddaddy Purple is a flavor-packed cultivar that’s been turning heads since the early 2000s. Crack open a jar, and you’re hit with a wave of sweet grape and berry aromas, like a bowl of ripe fruit with a hint of earth and spice underneath.
The taste follows suit—rich, fruity, and unmistakably grape-forward. Some batches bring in a piney or woodsy finish, while others lean into a candy-like sweetness with subtle floral or herbal notes. It’s a smooth smoke, but if you’re puffing hard, you might catch a bit of that old-school diesel kick on the exhale.
This cultivar’s terpene profile is usually led by myrcene, pinene, and caryophyllene, which help shape its bold aroma and flavor. Whether you’re rolling a joint or packing a bowl, Granddaddy Purple delivers a nostalgic, grape-heavy experience that’s hard to forget.
Ideal Growing Conditions for Granddaddy Purple Seeds
Granddaddy Purple is a forgiving cultivar that thrives in both indoor and outdoor setups. It prefers daytime temps between 70–80°F and can handle slightly cooler nights. If you’re aiming for those signature purple hues, drop nighttime temps below 60°F during the final weeks of flowering.
Humidity control is key—keep it around 50% during veg and lower it to 40–45% in flower to avoid mold. Good airflow is a must, especially with GDP’s dense buds.
This cultivar responds well to training methods like topping, low-stress training (LST), and SCROG setups. Expect a flowering time of 8–10 weeks, with indoor yields around 16–19 oz/m² and outdoor plants producing up to 21 oz each.
For feeding, GDP enjoys phosphorus-rich nutrients during bloom. Organic options like bat guano or kelp can help boost bud development. Whether you’re growing in a tent or under the sun, Granddaddy Purple is a solid pick for growers who want eye-catching color, rich flavor, and a chill harvest.
Cannabinoid Levels
Strain Overview
Genetic Makeup
Flavors & Notes
Fruity
Additional information
| Strain Type | Indica-Dominant Hybrid |
|---|---|
| Seed Type | Photoperiod |
| % Sativa | 25% |
| % Indica | 75% |
| THC | 20% |
| CBD | Low |
| Harvest Indoor | 13 – 15 oz/ft2 (360 – 440 gr/m2) |
| Harvest Outdoor | 21 – 25 oz/ft2 (585 – 715 gr/m2) |
| Flowering Time | Long (70-90 Days) |
| Height (in) | 50-70 inches |
| Effects | Euphoric, Relaxing, Sleepy |
| Flavor | Fruity |
| Best Time of Use | Evenings |
Strain Details
| Strain Type | Indica-Dominant Hybrid |
|---|---|
| Seed Type | Photoperiod |
| % Sativa | 25% |
| % Indica | 75% |
| THC | 20% |
| CBD | Low |
| Harvest Indoor | 13 – 15 oz/ft2 (360 – 440 gr/m2) |
| Harvest Outdoor | 21 – 25 oz/ft2 (585 – 715 gr/m2) |
| Flowering Time | Long (70-90 Days) |
| Height (in) | 50-70 inches |
| Effects | Euphoric, Relaxing, Sleepy |
| Flavor | Fruity |
| Best Time of Use | Evenings |
Related products
More Products-
-
-
40% off
-
Customer Reviews
4.5
100% Recommended (13 of 13)
Only logged in customers who have purchased this product may leave a review.
nuggknuckles (verified owner)
Big colors, big terps, and even bigger effect. One of those strains that looks beautiful under LEDs — deep purples, neon greens, and thick trichs. Heavy on the body, mellow on the mind. Smokes smooth even in a joint. A great all-rounder for my stash.
CanopyCreep (verified owner)
I ran a single plant in my 3×3 under 250W full-spectrum LED. This one took a little longer to show sex, but once it did, it exploded in flower. Gorgeous color by week 7 — hints of deep purple creeping into the sugar leaves. Not the tallest, but the branching was strong and the buds were fat. I didn’t top it, just some LST and leaf tucking. Smell was earthy grape with something herbal underneath. Harvested at day 72 and got 92g dry. Very chill effect, ideal for late evening. Would’ve been a perfect run if not for a little leaf fade earlier than expected during flush.
PurpParcel (verified owner)
Shipping took 16 days, which felt long, but everything arrived intact. Seeds were in a brown paper envelope inside a vacuum-sealed pouch with a tiny desiccant. All four cracked using the cup-of-water method and were in soil by day three. Grew low and wide without needing training. Dark fan leaves appeared early, and the purple fade by week eight was gorgeous. Smelled like grape syrup and cedar. Smoke was relaxing but not knockout. Pulled 318 grams total.
tentmeltz (verified owner)
Classic couch strain. Smelled like fermented grapes and pine needles. Grew chunky and slow, but worth the wait.
frostfurnace (verified owner)
I ran this in a cool basement grow, and it loved the lower temps. Purple coloration kicked in around week seven. No topping — just some light LST and defoliation. One pheno had a sour grape nose while the other leaned more sweet and spicy. Slight potassium issue mid-flower, but nothing major. Pulled 132 grams from the smaller one and 155 from the taller. Very body-heavy high, best taken at night or on a lazy day.
JohnnyJute (verified owner)
Arrived in a plain padded envelope, super stealth. No crushed seeds, all healthy-looking.
slowtent (verified owner)
I grabbed a 5-pack during a sale and cracked three right away. All three germed in less than 36 hours using the cup method. One grew noticeably chunkier than the others and gave off this sweet berry aroma all through late flower. I grew them in fabric pots with dry amendments, and they seemed to prefer a little extra magnesium during week 5 and 6. Smoke is relaxing but not heavy, more like a neck-down calm. The buds were easy to trim and cured fast. Would’ve liked more consistency between phenos, but that’s genetics for you. Still very happy with the outcome.
GSCureClub (verified owner)
Package was mislabeled when it arrived — the strain tag read “GDP Auto” but I’d ordered photos. Customer service responded in under 24 hours, sent a corrected pack, and let me keep the original. Photo period seeds germed 5/5. I ran them in 5-gallon fabric pots with dry amendments and compost teas. Dense structure, strong branches, no need for support. Buds were deep purple and sticky, with a sweet berry funk. Got 153 grams from each. Sleepy, smooth smoke.
SleepStacker88 (verified owner)
Discreet package arrived without issue. No branding, no strain name — just a code I had to match to the invoice. Not ideal, but functional. I germed three directly in amended coco and had sprouts in under 48 hours. Growth was even. I didn’t train them much, just removed lower leaves mid-veg. Buds were frosty and dark by harvest. Smell leaned towards earthy grape with a hashy finish. Excellent bedtime smoke.
purpleziplock (verified owner)
Burned super smooth. Flavor was berry-heavy with a little spice. Heavy body stone, good for evening wind-downs.
BudtillerDan (verified owner)
Started one seed in a solo cup with Fox Farm Ocean Forest and transplanted at week two. It didn’t stretch much, just bulked out and threw fat fan leaves. Topped once and let it fill out. I noticed slight tacoing under strong LED, so I raised the light and it fixed itself. The aroma was deep and fruity, almost like overripe plums. Smoke is thick and relaxing, with a taste that lingers. Yielded 138 grams.
OpenAirOG (verified owner)
Grew two outdoors in partial sun. One purpled out heavy, the other stayed green. Smelled like candy wine.
budcrate (verified owner)
One of those strains that makes trimming worth it. Dense, frosty, and smooth on the exhale. Grew two indoors and both were solid yielders.