Brothers Grimm Seeds is committed to clean feminized seed stock. We test all our seeds for HpLVD (HLV) as well over a dozen other viral and fungal targets. Additionally, our feminized seeds pass purity and noxious tests from a state approved lab.

Brothers Grimm Seeds produces seeds which are tested and certifiably clean from HLV and other viral and fungal targets. 

Verne Bioanalytics in Massachusetts tests our seeds and provides respective COA’s.

April 2023 Fungal COA
April 2023 Viral COA
December 2022 COA
October 2022 COA 

The seed test targets include:

Our seeds also undergo purity and noxious tests by a Colorado state approved lab.