Improves Water Holding Capacity

Drip irrigation lines running between garden rows

Materials in this collection can change how a soil or growing medium absorbs and retains water. Actual performance depends on particle size, blend proportion, crop, container, irrigation, temperature, and the rest of the mix.

Select products by their documented properties and follow application guidance; more is not always better. For materials used primarily to increase pore space and drainage, visit Improves Drainage.