TreeHelp Palm Tree Potassium Spikes
This slow-release fertilizer has been specially formulated to relieve Potassium deficiency in your palms and sagos. The spikes can be used with established trees, newly planted trees and newly transplanted trees. For palms with a circumference of 18 inches, use 2 spikes. 24 inches, use 4 spikes. 36 inches, use 6 spikes. 48 inches, use 8 spikes. 54 inches, use 10 spikes.