Brothers Grimm Seeds is known for industry-leading seed germination rates

Our seed germination tests are performed by the Colorado Seed Lab. In addition to germination testing, our seeds also undergo purity and noxious testing in compliance with Colorado Department of Agriculture.

List of germination rates from Brothers Grimm Seeds

Cinderella 99 germination rate certificate
99%

Durban Thai x C99 germination rate certificate
98%

Grimm Glue germination rate certificate
99%

Space Queen germination rate certificate
99%

Pineapple germination rate certificate
99%

Princess Haze germination rate certificate
99%

Rosetta Stone germination rate certificate
99%

Killer Queen germination rate certificate
99%

TESTER SEEDS

Mota Hari germination rate certificate
99%

Grimm Truffles germination rate certificate
99%

Grimm Mints germination rate certificate
99%

Please allow 24 hours (business hours) for us to confirm your payment if you’re paying with Zelle.

All seed orders over $78 include a free pack of limited edition feminized tester seeds!

Customers receive USPS tracking numbers emailed to them that accompany their order. Customers will receive their tracking information within 1-2 days.

You may contact us with any questions.

Brothers Grimm Seeds is registered with the Colorado Department of Agriculture.

All seeds made by Brothers Grimm Seeds are certified free from HLV and 16 other plant viruses, and have passed seed noxious and purity testing, and received a 98% lab verified germination rate.

Long Live The Home Grower Black T-Shirt (Size Large) Original price was: $22.00.Current price is: $11.00.
Headband 99 Feminized Seeds (9 seed pack) Original price was: $25.00.Current price is: $12.50.
Long Live The Home Grower Black T-Shirt (Size Medium) Original price was: $22.00.Current price is: $11.00.
Princess Haze (Regular): 1 Pack = 13 seeds Original price was: $80.00.Current price is: $40.00.
Queen of Soul (REGULAR) : 1 Pack = 13 seeds Original price was: $80.00.Current price is: $40.00.
Long Live The Home Grower White T-Shirt (Size Medium) Original price was: $22.00.Current price is: $11.00.
Grapeful Feminized Seeds (6 seed pack) Original price was: $100.00.Current price is: $90.00.
Headstorm Feminized Seeds (9 seed pack) Original price was: $25.00.Current price is: $12.50.
Rosetta Stone (Regular):1 Pack = 13 seeds Original price was: $80.00.Current price is: $40.00.
Genius Juice Feminized Seeds (9 seed pack) Original price was: $25.00.Current price is: $12.50.
Long Live The Home Grower White T-Shirt (Size XL ) Original price was: $22.00.Current price is: $11.00.
Long Live The Home Grower Black T-Shirt (Size XL ) Original price was: $22.00.Current price is: $11.00.

Seed Germination Rates

Brothers Grimm Seeds is known for industry-leading seed germination rates

List of germination rates from Brothers Grimm Seeds