Lutz Ultra Tree Micro Spikesare 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!

Spike Specifications
Ultra Tree Mircro Spike 

Total Nitrogen (N) 8% 8% Ammoniacal Nitrogen Available Phosphate (P2O5) 4% Soluble Potash (K2O) 8% Combined Sulfur (S) 13% Free Sulfur (S) 10% Total Manganese (Mn) 2.8% Total Magnesium (Mg) 4.5% Total Copper (Cu) 1%Total Iron (Fe) 1% Boron (B) .05% total Zinc (Zn) .05% Derived From: Ammonium Sulfate, Monoammonium phosphate, Potassium Sulfate, Manganese Sulfate, Magnesium Sulfate, Copper Sulfate, Iron Sulfate, Sodium Borate and Zinc Sulfate.

Tree Spikes 

for in-ground Citrus, Fruit and others.

Super Citrus Tablet
for potted Citrus, Fruit, all potted plants.

Martha Stewart Recommends Lutz Super Citrus Tablets!

"I use Lutz Citrus Tablets on my citrus plants"

Here at The Wild Flamingo Nursery we use, sell and highly recommend  Lutz Brand fertilizer spikes and tablets!