Amnesia + Grandaddy Purple Feminized Seeds
Price range: $32.50 through $255.00
Amnesia + Grandaddy Purple Feminized Seeds combine Amnesia × Granddaddy Purple genetics in a hybrid that pairs Amnesia-style vigor, branching, and upward growth with the denser flower structure and colour potential associated with Granddaddy Purple. The result is generally a medium-to-tall photoperiod plant with moderate stretch, productive side branches, and a greater chance of darker flower coloration than standard Amnesia types.
- Lineage: Amnesia × Granddaddy Purple
- Growth type: Hybrid, photoperiod
- Plant structure: Medium to tall with strong lateral branching and a substantial central framework
- Stretch: Moderate; typically less extreme than strongly Haze-dominant plants
- Indoor flowering: Approximately 8–10 weeks
- Outdoor harvest: Typically early to mid-October in the Northern Hemisphere
- Flower structure: Dense, rounded to elongated clusters depending on phenotype
- Resin production: High, with pronounced trichome coverage late in flower
- Colour: Green is common, with purple, violet, or darker tones possible depending on phenotype and temperature
- Aroma: Citrus, grape, berry, floral, earth, spice, and light herbal notes
- Best suited for: Growers wanting Amnesia-style vigor with denser flowers, stronger colour potential, and a fruitier aromatic profile
In vegetative growth, this cross usually benefits from enough room to develop its lateral branches. The Amnesia side can contribute an open, vigorous frame, while the Granddaddy Purple side may shorten internodal spacing and increase flower density. Indoors, topping or low-stress training can help control the main stem and create a more even canopy. Plants that lean more heavily toward the Amnesia parent may stretch more strongly, while purple-dominant phenotypes may remain stockier.
Indoors, a practical flowering range is 8–10 weeks after the switch to 12/12. Faster phenotypes may finish near eight to nine weeks, while more Amnesia-dominant expressions can take closer to ten. Flowers generally become firmer and more resinous in the second half of bloom. Purple coloration is not guaranteed and should be treated as phenotype- and environment-dependent; cooler late-flowering temperatures may intensify darker pigments where the genetics support them.
Outdoors, this hybrid generally needs enough season to reach early to mid-October in the Northern Hemisphere. It can become a large, heavily branched plant when given unrestricted root space and a long vegetative period. Because the flowers can become compact, growers in humid autumn climates should pay attention to airflow, spacing, and prolonged rain as harvest approaches.
The aromatic profile commonly combines bright citrus and herbal notes with grape, berry, floral sweetness, earthy depth, and light spice. Amnesia + Grandaddy Purple Feminized Seeds are best suited to growers looking for a vigorous, branchy hybrid with an eight-to-ten-week indoor bloom, an October outdoor finish, dense resinous flowers, and stronger fruit-and-colour potential than classic Amnesia alone.

