Lutz Ultra Tree Micro Spikes are ideal for all trees and shrubs, from Fruit, Citrus (that really thrive on the micros), to Evergreens, Maples, Birch and Oaks that require the Iron, Manganese and Sulfur.

Each 8-4-8 Ultra Tree Micro Spike contains the critical micro-nutrients required in all trees and shrubs. Plus a full 13% sulfur, which is critical to lowering pH, creating an environment in the feeding area that assists with the uptake of all the vital micro-nutrients.

Special binders slowly release the nutrients for up to 12 months. Lutz Ultra Tree Micro Spikes work underground at the feeder roots, to release these elements where the trees/shrubs get their nourishment. Easy, annual applications, provide superior healthy green growth! Check the rate chart here