Time-Release Fertilizer Disk with Water-Saving Polymer
Easy to use, simply drop the Fertilizer Disks in the base of the plant hole and forget about it. Each Disk will provide a steady supply of 10-10-10 fertilizer for 8-9 months. The 2" disk also includes a safe, non-toxic polymer that will swell and retain water and release it as required by the plant ... reducing plant waterings by up to 50% for up to five years. Pkg. of 100.