Water Retention Capabilities of Microgreen Mats hemp and coco coir Biodegradable Mats Journalist Microgreen Hemp Mats, Microgreens Coconut Matting January 4, 2020January 4, 2020 0 Comment Hemp does retain water longer than Coir microgreen mats, however it also depends on the thickness of the material. Water Retention Capabilities of Microgreen Mats hemp and coco coir
