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Granddaddy Purple – Feminized Cannabis Seeds | Canada
Granddaddy Purple Cannabis Seeds Feminized
Granddaddy Purple (also known as GDP, Grand Daddy Purple, or Grandaddy Purple) is a feminized, Indica-dominant hybrid bred from Purple Urkle × Big Bud. It tests at 25% THC with around 0.60% CBD and minimal CBG, flowers in 65–70 days, and yields up to ~400 g/m² indoors or up to ~550 g per plant outdoors, typically harvesting by early October. The genetics combine Purple Urkle's sweet, berry-flavored profile, soothing effects, and rich purple hues with Big Bud's large, dense bud structure and stable, reliable growth, producing reported effects that are calming and euphoric with a creative undertone.
Genetics: Purple Urkle × Big Bud
Purple Urkle contributes a sweet, berry-flavored profile, soothing relaxing effects, dense buds, and rich purple coloration.
Big Bud contributes large, dense bud structure for impressive yields, plus stable, reliable growth characteristics.
Granddaddy Purple Strain Details
Specifications published by Quebec Cannabis Seeds. Results vary with growing medium, technique, experience and conditions.
| Detail | Info |
|---|---|
| Breeder | Quebec Cannabis Seeds |
| Sex | Feminized |
| Genetics | Purple Urkle × Big Bud |
| Type | Indica-dominant hybrid |
| Growing Level | Moderate |
| Flowering Time | 65–70 days |
| Outdoor Harvest | October |
| Best Outdoor Climate | Mediterranean, sunny |
| THC | 25% |
| CBD | ~0.60% |
| CBG | Minimal |
| Indoor Yield | Up to ~400 g/m² |
| Outdoor Yield | Up to ~550 g/plant |
Flavor, Aroma & Terpenes
Flavor: A delightful blend of berry, citrus, grape, and pine, with a subtle sweetness and a smooth, fruity-earthy finish.
Aroma: Sweet and fruity with earthy undertones and a pungent presence.
Key terpenes: Bisabolol, geraniol, linalool, myrcene, and pinene.
Effects
Commonly reported: calm, euphoric, creative, relaxing, with appetite stimulation and, at higher doses, sedation. Typically described as a soothing effect that eases stress, anxiety, and physical tension while supporting a creative state of mind — heavier doses lean toward sleep-supportive sedation.
Effects vary by person and dose. Not medical advice.
Reported Uses
Some users report the calming, mood-lifting profile as supportive for stress, low mood, minor aches, reduced appetite, or difficulty sleeping (especially at higher doses). This reflects general reported use, not medical advice or a treatment claim for any diagnosed condition — consult a healthcare provider before using cannabis for anxiety, pain, insomnia, or any other medical condition.
Growing Conditions & Tips
- Climate: Thrives in moderately humid conditions with temperatures between 70–80°F (21–27°C); proper ventilation is important to prevent mold and mildew.
- Suitable for: Indoor or outdoor growing — adapts well to Mediterranean or sunny climates outdoors.
- Training: Low-Stress Training (LST) improves light penetration and promotes larger buds, especially indoors.
- Nutrients: Nutrient-rich feed in veg, switching to bloom-specific nutrients at flowering.
Harvesting
Monitor trichomes closely — harvest when most are cloudy with a few amber for a calming, well-rounded result. A slow dry and a proper cure help preserve the berry-grape aroma and deep purple color; see our guide to drying vs. curing marijuana.
Frequently Asked Questions
What is Granddaddy Purple? A feminized, Indica-dominant hybrid bred from Purple Urkle × Big Bud, known for its sweet berry flavor and calming, euphoric effects.
Is Grand Daddy Purple the same as Granddaddy Purple? Yes — Granddaddy Purple, Grand Daddy Purple, Grandaddy Purple, and GDP are all names for the same strain.
How much THC does it have? Breeder-listed THC: 25%. Breeder-listed CBD: ~0.60%.
How long does it take to flower? Breeder-listed flowering time: 65–70 days. Outdoor harvest: October.
What's the yield? Up to ~400 g/m² indoors, or up to ~550 g per plant outdoors.
What does it taste like? Berry, citrus, grape, and pine, with a subtle sweetness.
Is it easy to grow? Moderate difficulty — its stable Indica genetics make it fairly forgiving, but it rewards attentive care. Every pack is backed by our 100% shipping guarantee and 80% germination guarantee.
Are Granddaddy Purple seeds feminized? Yes. Granddaddy Purple (GDP) is a feminized, Indica-dominant hybrid bred from Purple Urkle × Big Bud.
Guide: Mastering the art of growing cannabis outdoors
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Granddaddy Purple is a parent of our Quebec Blue, and also features in M-39 Granddaddy. For more dark, purple-hued buds, compare Quebec Black Bud and Purple Kush Autoflower.
Buy Granddaddy Purple Feminized Cannabis Seeds in Canada
Order Granddaddy Purple feminized cannabis seeds online from Montreal Cannabis Seeds, a Canadian online seed bank with more than 10 years in business. Every order ships in plain packaging with no product names on the outside, and every order includes free seeds: the bigger the order, the more free seeds you get. Pay by credit card, e-transfer or Bitcoin.
How fast will my Granddaddy Purple seeds arrive? We ship every day, and orders placed before 2 p.m. ET ship the same day. Canada Post standard shipping is $10 (4–11 business days, no tracking) and courier express is $25 (2–4 business days, with tracking). Express shipping is free on orders over $200. We also ship express to the US for $25 (2–3 business days, with tracking).
What guarantees do I get? Our 100% shipping guarantee means that if your order arrives damaged, wrong or incomplete, or never arrives, we replace it or send a new order. Our 80% germination guarantee covers your seeds for 90 days: if fewer than 80% germinate when you follow our instructions, we replace the seeds. We do not offer refunds or store credit. Read the full shipping and germination guarantees.
Legal Disclaimer
Cannabis laws differ by location. Buyers must know and follow all local, provincial/state, and federal laws before buying, holding, germinating, or growing cannabis seeds — our guide to buying cannabis seeds in Canada covers the main provincial differences. These products are for adults 18+ (or as required by law) only where legal. We do not support or promote illegal activity. THC, CBD, flowering time, flavor, effects, and yield figures are estimates, not guarantees — actual results depend on the plant, climate, growing setup, and grower experience.
- Availability: 50 In Stock
- Model: Q.C.S.
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