Give your garden a boost with our spent and contaminated mushroom blocks, available for collection in North London. These hardwood sawdust-based mushroom substrates are ideal for gardeners, allotment holders, and growers looking for a sustainable source of organic mulch and compost material.
Our spent and contaminated mushroom blocks are perfect for:
- Mulching flower beds and vegetable gardens
- Adding carbon-rich material to compost heaps
- Filling raised beds for the next season
- Improving soil structure and moisture retention
- Supporting healthy soil biology
You may even be lucky enough to harvest a few gourmet mushrooms before the substrate fully breaks down!
What Does "Contaminated" Mean?
These mushroom blocks are no longer suitable for mushroom grow kits because they contain naturally occurring wild fungi, including Trichoderma species. Trichoderma is a common soil fungus found in healthy gardens and woodlands, and research has shown it can help support plant health. The presence of Trichoderma does not affect the suitability of these blocks for use as mulch, compost, or soil improver.
Price
£5 for 8 x 2 kg bags
Collection
Collection is from North London. Once you've placed your order, we'll contact you when it's ready for collection.
Need larger quantities or regular collections? Please get in touch by email to discuss bulk orders and ongoing supply.
Why is the product listed as £0 but I'm being charged shipping?
The price for 8 bags is £5, which you will need to pay in the 'shipping' section at checkout.
