What is Hydrogrow and what purpose does it serve?
Hydrogrow is a fertilizer and polymer combination that is spread out on the base course at a rate of one pound per hundred square feet before the Grasspave2 is rolled into place. When Hydrogrow comes into contact with water it expands to look like jelly, holding a great deal of water and nutrients for the maturing grass roots until they can grow down into the subbase. This reservoir effect is necessary because sand is the growing medium and while it allows water to quickly drain from the surface it also deprives the grass of the substantial moisture it needs to germinate.
