The Old Farmer's Almanac Evergreen Tree & Shrub Fertilizer Spikes

Unlike granular fertilizers that sit on the soil surface and can wash away with rain, these spikes are driven directly into the root zone. This targeted delivery ensures your evergreens receive nutrients exactly where they need them most, minimizing waste and runoff.

No special tools are required. The patented TruSpike design is engineered to be sturdy enough to drive directly into the soil using only a hammer.

The 10-4-10 ratio indicates a balanced formula designed specifically for evergreens. The 10% nitrogen supports lush, deep green foliage, while the 4% phosphorus and 10% potassium promote strong root development and overall plant resilience against seasonal stress.

These spikes provide continuous, slow-release feeding for up to three months. You can apply them in the spring, summer, or fall to maintain consistent nutrient levels throughout the growing season.

The spikes feature a patented design specifically engineered to resist breaking and crumbling during installation. While they are durable, we recommend moistening the soil slightly before application if your ground is exceptionally dry or compacted to make the process smoother.