Skip to product information
1 of 2

Heartwood Mushrooms



Regular price $5.00 CAD
Regular price Sale price $5.00 CAD
Sale Sold out

Transform your garden into a thriving oasis.

These eco-friendly, nutrient-rich blocks are the byproduct of mushroom cultivation, offering a sustainable solution for enriching your soil, boosting plant health and simple mushroom cultivation.

Key Features:

  • Nutrient-Dense: Packed with organic matter and essential nutrients, spent mushroom blocks enhance soil fertility and promote plant growth.
  • Eco-Friendly: Made from recycled mushroom substrate, these blocks reduce waste and support sustainable gardening practices.
  • Versatile Usage: They are perfect for gardens, flower beds, and vegetable patches. You can use them as a soil amendment, mulch, or compost accelerator.
  • Easy to Grow: Place them in the shade and let them get rained on. Most blocks will grow 1-2 more clusters of delicious, edible mushrooms.
  • Easy to Compost: Break apart the blocks and mix them into your soil or spread them as mulch around your plants.
  • Boosts Soil Health: Improves soil structure, increases water retention, and encourages beneficial microbial activity.

Why Choose Pre-Grown Mushroom Blocks?

  1. Sustainable Gardening: By choosing spent mushroom blocks, you're contributing to a circular economy, reducing waste, and promoting sustainable agriculture.
  2. Cost-Effective: An affordable way to improve soil quality without the need for synthetic fertilizers or chemical soil amendments.


  • Garden Beds: Enrich your garden soil with these nutrient-packed blocks for healthier plants and higher yields.
  • Mulching: Use natural mulch to suppress weeds, retain moisture, and add organic matter to your garden.
  • Composting: Add spent mushroom blocks to your kitchen scrap-rich compost pile to accelerate the decomposition process and enhance nutrient content.

Directions for Use:

  1. Cultivation: Place them in the shade and let them get rained on. You can water them if it's dry, but you don't have to. Harvest when you see mushrooms growing.
  2. Soil Amendment: Break the blocks into smaller pieces and mix them into the soil at a depth of 6-8 inches.
  3. Mulching: Spread a 2-3 inch layer of broken blocks around the base of your plants, ensuring they do not touch the stems directly.
  4. Composting: Incorporate the blocks into your compost pile, ensuring a balanced mix of green and brown materials.

Transform your gardening experience with the power of mushroom blocks. 

View full details

Keep It Growing!

Our goal is to reduce and recycle mycelium waste for purposes of growing more mushrooms, diverting organic matter from waste, building healthy fungal-rich soil and most importantly community.

Mushroom Gardening for Everyone

Put the block in the shade and let it get rained on.

Check on it daily! Mushrooms grow fast.

Get a Truckload

If you want  50+ blocks for your summer mushroom projects, please contact us directly to rescue blocks directly from the farm in Little Current at 25 Cockburn St West.

Blocks are outside and a staff member will help load blocks into your vehicle. Most vehicles including cars and hatchbacks will work and can fit about 75 blocks. Most trucks can fit around 150 blocks.

Easy Harvest

Oyster mushrooms harvest so easily! Just pull the clusters off by hand and cut off the sawdust at the base.