NEW! Terrafibre™ grow mats are made from the fibrous by-product of the industrial hemp plant and are ideal for microgreens, sprouts, (wheatgrass) and other short rotation crops. Industrial hemp fibers are separated, cleaned and needle punched to produce a 100% biodegradable soilless growing medium. Hemp fibers have high water retention, keeping seeds wet through germination. Designed for one growing cycle–compost when finished. Grown, processed, and manufactured in Canada.Mats are 5"x5".