Product Information
- Box of 40 spikes
- 8-10-10 formula, with 3.2% manganese, 4.8% sulfur and 3.3% iron
- Place one spike for every 1 inch of trunk diameter in a circle around the tree dripline
- This product is covered under A.M. Leonard’s exclusive 30-Day Down to Earth Guarantee. Click Here for more Details.
- Up to 12 months of slow release fertilizing
- 13 pounds
The General Purpose Tree Spike is an easy to use, slow-release fertilizer spike designed to provide trees with high-quality nutrients for a period of up to 12 months.
What is the formula of the General Purpose Tree Spike?
The formula for the General Purpose Tree Spike is 8 10 10, with 3.2% manganese, 4.8% sulfur, and 3.3% iron, plus micros.
How many spikes are included in a box of General Purpose Tree Spikes?
A box of General Purpose Tree Spikes includes 40 spikes.
How do I use the General Purpose Tree Spike?
Place one spike for every 1 inch of trunk diameter in a circle around the tree’s dripline. The specially designed caps make it easy to insert the spikes into soft soil with a small mallet.










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