Jobe's Organic Spikes Root Feeder 2.2 oz - Ace Hardware
Jobe's Spikes Root Feeder 1 lb. - Total Qty: 1; Each Pack Qty: 5; Total Items Rec: 5, 1 - Ralphs
Jobe's Tree & Shrub Fertilizer Spike
Amazon.com : Keyfit Tools Tree Fertilizer Spike Land Staker 2.0 Get Your Root Feeder Spikes 1 Foot Deeper for Deep Root Tree & Shrub Fertilizing ~Or use Your own granular Fertilizer Does
Fertilizer Spikes, Stakes, & Root Feeders - Tree Fertilizer Spikes