Grandaddy Purple Feminized Seeds
Price range: $39.00 through $255.00
Grandaddy Purple Feminized Seeds combine Purple Urkle × Big Bud genetics in a compact, indica-dominant photoperiod cultivar known for broad foliage, short internodes, dense resinous flowers, strong purple-colour potential, and a rich grape-and-berry aroma. Compared with taller sativa-leaning plants, Grandaddy Purple generally stays low and bushy with limited stretch, making it particularly manageable where vertical space is restricted.
- Lineage: Purple Urkle × Big Bud
- Growth type: Indica-dominant hybrid, photoperiod
- Plant structure: Compact to medium, bushy, with broad leaves and sturdy lateral branches
- Stretch: Low
- Indoor flowering: Typically about 8–9 weeks (roughly 56–63 days)
- Outdoor harvest: Typically late September to mid-October in the Northern Hemisphere
- Flower structure: Dense, chunky flowers with close calyx stacking
- Resin production: High
- Colour: Green with purple, violet, plum, or burgundy tones possible depending on phenotype and cooler late-flower conditions
- Aroma: Grape, dark berry, sweet fruit, earth, herbs, and light spice
- Best suited for: Growers wanting compact photoperiod growth, dense resinous flowers, and strong colour and fruit-aroma potential
Grandaddy Purple naturally develops a low, broad canopy with relatively tight internodes. Topping and low-stress training can help spread the sturdy branches and create an even canopy, while selective pruning can improve airflow through the dense foliage.
Indoors, a practical flowering target is approximately 56–63 days after the switch to 12/12. Flowers usually become compact and heavily frosted through the second half of bloom. Purple expression varies by phenotype and is often intensified by cooler late-flowering temperatures where the genetics support it.
Outdoors, harvest commonly falls from late September through the first half of October in the Northern Hemisphere. Exact timing varies with latitude, phenotype, and seasonal conditions. Dense flowers benefit from good spacing and relatively dry weather as harvest approaches.
The aromatic profile is typically led by ripe grape and dark berry with sweet fruit, earthy, herbal, and lightly spicy undertones. Grandaddy Purple Feminized Seeds are best suited to growers looking for limited stretch, an eight-to-nine-week indoor bloom, and a colourful, fruit-forward indica-type plant.

