Seed It Hemp Mat for Microgreens (15m Roll)Overview Hemp mats are perfect for growing microgreens from start to finish. They can be cut to your desired size without affecting the integrity of the product. General Information These hemp mats are all natural, compostable and biodegradable! Using these is an extremely low maintenance method of growing which eliminates the mess that soil can create. This hemp mat comes in a 15m roll, with a width of 1. 2m Benefits Biodegradable Compostable 100%