
Description
Born from the cross of Runtz Auto and Cookies Auto, Purple Caper Seeds' Runtz Cake Auto Feminized carries the best of both parent lines into a single, easy-running package. The aroma leans into layers of creamy sweetness, ripe fruit, and a low, drifting gassiness that fills a room as harvest approaches. Effects are characteristically indica-dominant, settling into a calm, unhurried state that suits evening growing sessions and relaxed unwinding alike.
As a feminised autoflower, Runtz Cake Auto removes the guesswork from photoperiod management, making it equally at home in a compact tent under a fixed light schedule or outdoors through a mild shoulder season. Growers can plan around a seed-to-harvest window of 10 to 12 weeks, a timeline that rewards patience without demanding a long commitment. The indica-dominant structure typically stays manageable in height, which suits growers working with limited vertical space. Whether you are running your first auto cycle or adding a fast-finishing indica to a perpetual harvest rotation, this strain earns a place in the lineup.
Runtz Cake Auto Feminized Seeds
Description:
A creamy, fruit-forward autoflower from Purple Caper Seeds, Runtz Cake Auto blends the sweet gassiness of Runtz Auto and Cookies Auto into a relaxed, indica-leaning experience built for any grow cycle.
Best For
Beginner growers seeking a relaxing, euphoric indica high
- Type
- Feminised – Autoflowering
- Genetics
- Runtz Auto x Cookies Auto
- THC / CBD
- High THC (16-24%) / Low CBD (0-1%)
- Effects
- Relaxing,Sleepy
- Flavour / Aroma
- Creamy,Sweet,Fruity,Gassy
- Height
- Medium
- Yield
- Average Yield (200-450gr/plant) / Average Yield (350-450gr/m2)
- Auto Harvest
- 10 to 12 weeks
- Difficulty
- Easy
FAQ
All you need to know
about this product
Runtz Cake Auto from Purple Caper Seeds delivers creamy, fruit-forward indica depth in an easy autoflowering package, ready for growers who want results without the complexity.
This strain is rated easy and specifically suited to beginner growers, thanks to its feminised autoflowering genetics that remove the need for photoperiod management. You won't need to adjust light schedules, and the plant stays at a medium height, making it manageable in smaller spaces or compact tents.
The profile comes from its Runtz Auto and Cookies Auto parentage, combining layers of creamy sweetness, ripe fruit, and a subtle gassy undertone that becomes more pronounced as harvest approaches. It's a rich, dessert-leaning nose that carries through into the flavour on the exhale.
Being a true autoflower, Runtz Cake Auto reaches harvest in 10 to 12 weeks from seed regardless of light cycle. Indoors you can expect around 350–450g/m², while individual plants are capable of producing 200–450g under good conditions — a solid return for a strain this straightforward to run.
Runtz Cake Auto is indica-dominant and leans toward relaxing, sleepy effects that suit evening use. With THC sitting in the 16–24% range and minimal CBD, the high settles into a calm, unhurried state rather than anything energising or cerebral.
You Might Also Like
Discover more
legendary genetics
Explore handpicked strains with similar flavors and traits — perfect for your next grow.

Grand Peanut Butter Payton Feminized
A sweet, fruity cross of Peanut Butter Payton and Grand Caper, Grand Peanut Butter Payton Feminized from Purple Caper Seeds brings rich, dessert-leaning genetics to the table in a reliable, all-female pack of five.

Cookie OG Feminized Seeds
A gassy, resin-heavy cross of OG Kush and GSC (F2), Cookie OG from Purple Caper Seeds brings together two pillars of West Coast genetics in a feminised photoperiod hybrid built for cultivators who know what they want.

Purple Skunk Feminized Seeds
A sativa-dominant cross of Purple Caper and Alpha Skunk, this feminised offering from Purple Caper Seeds delivers an energetic, uplifting experience wrapped in earthy, fruity, skunky aromatics that are immediately recognizable and deeply satisfying.