TreeHelp Palm Tree Magnesium Spikes
This slow-release fertilizer has been specially formulated to relieve Magnesium deficiency in your palms and sagos. The spikes can be used for established palms, newly planted palms and potted palms. 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.