Pre-measured fertilizer spikes nourishes at the roots; Time release fertilizer for all trees and shrubsEasy to use fertilizer spikes; No wasteful runoff, no mess, hazards or smells; Apply early spring and late fallContinuous supply of nutrients below the surface, where the active roots are growingJobe's tree spikes are easy to insert around each tree's dripline, and the slow-release formula feeds all seasonGuaranteed analysis: (16-4-4) 5 spikes, (15-3-3) 9 spikes, (16-4-4) 15 spikes,160 spikes
