Hydrogro 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 Hydrogro 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.

Dry Hydrogro² expands and softens into gelatin sponges of water and nutrients, absorbing 150 to 300 times their weight. Plants roots will penetrate the expanded crystals and remove the moisture and nutrients as needed, responding with rapid growth and more healthy vegetation. The Humate component provides humus, fertilizer, micronutrients, and starter bacteria for an ideal growth environment for soil bacteria and enzymes to convert NPK fertilizer elements into food for plants.

Hydrogro polymer is a synthetic crystal (polyacrylamide) soil additive which absorbs water and dissolved nutrients. Crystals are non-toxic, pH neutral , and very slow to biodegrade. Hydrogrow is anionic, and is not affected by minerals and salts in soils or water. Our crystals are "fine" in size, and supplied alone, or mixed with Humate for added benefits.

Benefits:

• With Grasspave², balance of water demand with regular turf areas adjacent to Grasspave² paved areas.
• Less frequent irrigation, saving water, labour, and operation costs of irrigation equipment.
• Reduced transplanting shock and healthy soil chemistry.
• More moisture retained in sandy soils.
• Greater porosity for heavy clay soils.
• Quick establishment of new plants.
• Greater utilization of fertilizer applications.