Collection: Sterilised Grain

UK's #1 Choice for Contamination-Free Growing

✅ Laboratory Tested ✅ 99% Success Rate ✅ Fast UK Delivery

Save up to £350 with bulk pricing - Limited time offer

Which Size Is Right for Me?

500g

Perfect for first-time growers or testing new species

Covers 1-2KG substrate

MOST POPULAR

1.5KG

Most popular size for home cultivation

Covers 3-6KG substrate • Best value

2KG

Large scale growing and multiple projects

Covers 6-12KG substrate

Bulk Packs

Commercial operations and serious cultivators

Save up to 25% • Perfect for scaling up

BULK SAVINGS

Cash on collection available

Payment Options

We accept all major credit and debit cards, cryptocurrency payments, and cash on collection.

For cash collection or crypto delivery, email support@williamscosupplies.com before ordering.