We're loving this innovative product line manufactured in Alberta, Canada. Composed of long fibres from the hemp plant, these mats form the perfect material for root stabilization for any short rotation crops. Use them for sprouts, micro-greens, or for any other seedling starts. They're ideal for growing wheatgrass. Once the harvest has been taken, the whole thing can be composted — it's 100% biodegradable.
Peat-based products are not ideal since they are harvested from peat bogs. Coir is a great option, but it is transported from the tropics. Terrafibre is a superbly sustainable option. This package contains 40 sheets cut to 5 x 5 inches so that 8 laid flat would fit standard 10x20 planting (or micro-green) trays. That means you could potentially grow 8 sprout or micro-green varieties side by side.