Granddaddy Purple Auto Feminized Marijuana Seeds

Description of Granddaddy Purple Auto Feminized

Granddaddy Purple Auto Feminized Marijuana Seeds feature a genetic lineage of Purple Urkle × Big Bud Auto. The autoflowering version is derived from the Granddaddy Purple lineage, with Purple Urkle contributing its characteristic genetic background and Big Bud Auto introducing the autoflowering trait. The Purple Urkle lineage is commonly traced to Afghan × Skunk, while Granddaddy Purple also has a Mendocino Purps phenotype in its background. 

How to Grow Granddaddy Purple Auto Feminized

This easy, beginner-friendly autoflower is suitable for both indoor and outdoor cultivation and can be grown in either soil or hydroponic systems. Plants typically reach 70–120 cm (2.3–3.9 ft) indoors and 80–140 cm (2.6–4.6 ft) outdoors, making the compact, bushy structure manageable across different growing spaces. It performs best in warm, stable conditions and climates with long summers.

Indoor cultivation can produce approximately 375–450 g/m², while outdoor plants may yield around 110–160 g per plant under suitable conditions. The flowering period lasts approximately 55–60 days (8–9 weeks) once flowering begins, while the complete seed-to-harvest cycle generally takes 70–85 days, or approximately 10–12 weeks. Overall, the expected seed-to-harvest time is approximately 10–12 weeks, accounting for the vegetative growth and flowering stages. The exact timeline can vary depending on environmental conditions, growing methods, and individual plant development. 

The compact growth habit makes it particularly practical for smaller indoor spaces, while its autoflowering genetics allow flowering to begin according to plant age rather than requiring a traditional light-cycle change. A documented indoor grow reached 53 cm and produced 81 g of dried flower by day 77, illustrating that actual plant size and yield can vary depending on growing conditions and individual performance.