The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes

The Old Farmer's Almanac Fertilizer Plant Food Spikes provide essential nutrients trees and shrubs need to grow and thrive. Our Fertilizer Spikes are made with natural ingredients and they won’t break, crush, or smash!

Fast Acting, Long Lasting, Robust Nutrition: Each 5 Inch TruSpike Fertilizer Spike is packed with nutrition designed for feed your trees, evergreens and shrubs continuously for up to 3 months. 

Nutrient Rich 13-3-3 Formula with 13% Nitrogen for vigorous plant growth and color; 3% Phosphorus for healthy fruiting and blooms; and 3% Potassium for strong roots.

It's a TruSpike... Hammer It In! This is not your old, ordinary, crumbly, dusty, oval shaped fertilizer "spike". This is a patented, powerhouse TruSpike. There's no need for a plastic cap or special equipment with TruSpike, just hammer it in and let it get to work fertilizing your plants. It will NOT break, crush or smash... guaranteed!

No Waste or Runoff: The Old Farmer's Almanac Fertilizer Spikes release nutrition directly into the root zone where plants need it most to help promote stronger trees and shrubs without waste or runoff.

Simple to use. For best results, feed 2 times a year -- early spring, and late fall -- for continuous fertilization. Depending on climate and plant variety, an additional application in the summer can provide extra nutrition and help protect from summer stress.

For best results, apply in early spring and late fall.

Water well before application.

Using a hammer, drive each spike into the soil until the top is at least 2 inches below the surface. Evenly space spikes in a circle along the dripline.

Never insert closer than 30 inches from the trunk.

For shrubs 1 spike per 3 feet of plant height is recommended.

For trees measure the trunk diameter 1 foot above the ground; and use 1 spike per inch of diameter with a minimum of 2 spikes.

Important Note: The instructions above are for use as a guide only. For complete instructions for use and safety precautions review the back of your product package and the manufacturer's Material Safety Data Sheet.