Wholesale CVG Substrate Bags – 1.5kg, 2kg, 3kg & 5kg (Bulk Mushroom Grow Substrate)

Mushroom farms, growers and resellers across the UK come to us for their CVG. We ship tonnes of it every month, all made to order in fresh batches and priced for people who use a lot of it.

Our CVG (coco coir, vermiculite and gypsum) is hydrated to field capacity and pasteurised for 24 hours, ready to mix with your grain spawn. It comes in 1.5kg, 2kg, 3kg and 5kg bags, in wholesale quantities from 25 to 1,000+.

Which bag each size comes in

• 2kg: Unicorn XLS-A Horizon. Our most popular option. It comes in Unicorn's largest bag, which has room for another 1kg of grain spawn, so you can mix straight in the bag and fruit your mushrooms from it.
• 1.5kg and 3kg: Unicorn 14A
• 5kg: Unicorn XLS-B

These are our standard bags. If your setup needs a different Unicorn bag, just ask when you order.

Genuine Unicorn bags only. Every bag we ship is a genuine Unicorn bag, the industry-leading mushroom grow bag made in the USA. We never cut corners with cheap generic bags. Unicorn bags are tough and their filter patches are consistent bag after bag, so you get cleaner colonisation and fewer losses.

Free UK delivery on every order, by Royal Mail or on a pallet with a tail lift. We also ship to Europe, just contact us for a quote.