Micro-Mat Hydroponic ConfettiMicro Mats hydroponic growing confetti is made from biodegradable wood fibers that are highly absorbent and have a very high water holding capacity. The confetti conforms to any container making it the perfect hydroponic grow medium for microgreens and wheatgrass in non traditional containers. Micro Mat confetti from Handy Pantry are perfect for those looking to grow wheatgrass, barley grass, microgreens, or other plants, without the hassle of dealing