STRNG Seeds – Granddaddy Purple

Known for its deep purple hues, grape-like flavor, and dense, resinous buds, Granddaddy Purple is a staple among growers who value rich terpene profiles and a deeply calming character.

Expect a sweet, fruity profile reminiscent of ripe grapes and berries, with earthy undertones and a smooth, slightly herbal finish — especially pronounced after a long cure.

The aroma starts off subtle and floral, then builds into a strong, candy-like scent with hints of grape juice and spice — especially noticeable in the final weeks of bloom.

Buds are often bright purple with flecks of green and orange pistils, coated in a thick layer of trichomes. Its color and density give it standout bag appeal.

Indoors, expect 400–500g/m² with proper care. Outdoors, healthy plants can yield over 500g per plant depending on environment and technique.

It typically grows 80–110 cm with strong lateral branches and a central cola. It’s well-suited for smaller grow tents and moderate-height rooms.

It’s a cross between Purple Urkle and Big Bud, resulting in a strain known for its color, yield, and uniquely fruity terpene profile.

Yes. By week 6 of flower, the grape-candy aroma can become strong and sweet, requiring carbon filters or ventilation for indoor discretion.

It’s moderately dense, so reducing RH below 50% in mid-to-late flower and maintaining good airflow are important to prevent moisture-related issues

Granddaddy Purple leans more toward earthy fruit and berry, while Purple Punch is sweeter. GDP also tends to grow bushier and more compact with thicker colas.

Yes. It produces dense, trichome-covered flowers that make it suitable for those interested in dry sift, rosin, or ice water extraction.

We offer phenos with deeper color expression, stronger lateral growth, and intensified fruit-forward aroma, producing a vivid, flavorful GDP optimized for indoor and outdoor cultivation.

Feminized seeds ensure that every plant produces flower, helping maximize yield and efficiency — especially important with visually-driven strains like GDP.

Yes. It does well outdoors in dry, sunny climates where cooler nights can bring out even deeper purple coloration. It typically finishes by early to mid-October.

Yes. It’s low-maintenance, pest-resistant, and doesn’t require aggressive training, making it great for both new and experienced growers.

High-quality seeds are typically stable, producing uniform structure, color, and aroma with only minor variations in bud shape or density.

Indoors, expect 400–500g/m² with proper care. Outdoors, healthy plants can yield over 500g per plant depending on environment and technique.

Balanced feeding works well, but reducing nitrogen and boosting phosphorus and potassium in bloom helps support resin and aroma development.

Indoors, it flowers in about 8–9 weeks. Outdoors, harvest generally falls around early to mid-October depending on local conditions.

LST, topping, and SCROG setups work well. Granddaddy Purple handles stress well and responds positively to canopy shaping in early veg.