There are various models of deep-root waterers and feeders on the market, but this one seems to be the best.
Measuring 30" overall, it will penetrate deeply into the soil around trees, shrubs, roses and evergreens to water and fertilize right in the root zone. This encourages deep root growth that maximizes the top growth and resists the effects of drought.
The feeder attaches to a regular garden hose and uses either type of fertilizer pellets described below. The water dissolves the pellets as it flows past them, before being injected into the soil. The integral on/off switch lets you control water flow at will.
The 10-20-20 fertilizer is for evergreens, and the 25-10-10 general purpose for trees and shrubs. Each package of fertilizer has 12 pellets. Instructions included.
(Hose not included.)
The Deluxe Root Feeder is no longer available. We still have a limited supply of the fertilizers.