Feminized Cannabis Seeds

Feminized cannabis seeds: the complete guide

This collection includes our photoperiod feminized varieties, backed by our 80% germination guarantee and shipped across Canada, the United States and internationally. Every strain in this collection is bred in-house by Super Autoflowers, so we control the genetics from parent plants to packaged seeds.

What are feminized seeds?

Regular cannabis seeds produce roughly half male and half female plants, so growers have to identify and remove the males. Feminized seeds are produced by breeding two female plants, so nearly all the seeds grow into females. Plants can still occasionally develop male flowers under stress, such as light leaks or big temperature swings. Because we breed our own seeds, we select the appropriate strains for developing strong, stable genetics.

Feminized photoperiod vs. feminized autoflower seeds

Feminized photoperiod seeds begin flowering when the light schedule changes, usually to 12 hours of light and 12 of darkness. They take longer but give growers more control over plant size and timing. Feminized autoflower seeds flower automatically based on age and usually flower in about 6 to 12 weeks, depending on the strain and the grower, staying compact enough for shorter seasons or smaller spaces. See our Autoflower Seeds category for the fastest option.

Frequently asked questions

Are feminized seeds 100% female?
No seed is guaranteed to be 100% female, but quality feminized seeds usually produce female plants at a rate of around 99%. Stable growing conditions help prevent male flowers.

What's the difference between feminized and regular seeds?
Regular seeds produce both male and female plants and are mainly used by breeders. Feminized seeds produce almost only female plants, which makes them the simpler choice for most home growers.

Can feminized seeds be autoflowering?
Yes. Many autoflower seeds are also feminized, combining automatic flowering with nearly all-female plants.

Is there a germination guarantee on feminized seeds?
Yes. Super Autoflowers guarantees an 80% germination rate on feminized seeds when germination starts within 3 months of delivery. Our Return Policy explains what is covered and how to make a claim.

Where do you ship feminized seeds?
We ship with Canada Post to Canada, the United States and internationally. Canadian orders take 4 to 11 business days by standard shipping or 1 to 4 by express, express orders to the United States take 1 to 3 business days, and international orders take 15 to 21 business days. See our Shipping page for rates.