$56.95 ($1.19 / oz) Keyfit Tools Tree Fertilizer Spike Land Staker 2.0 Get Your Fertilizer Spikes 1 Foot Deeper for Deep Root Tree & Shrub Fertilizing ~Or use Your own granular Fertilizer Does NOT Come with fert Spikes
$11.06 Miracle-Gro Tree & Shrub Plant Food Spikes, 12 Spikes/Pack
$141.81 Jobe's 02611 Evergreen Tree Bulk Fertilizer Spikes, 160 Count, Brown
$24.88 Ross Rose & Flowering Shrubs Fertilizer Refills for Ross Root Feeder, 15-25-10 (Ideal for Watering During Droughts), 54 Refills
$73.88 The Andersons Professional PGF Complete 16-4-8 Fertilizer with Humic DG 10,000 sq.ft.