NutraPro Controlled Release Tree Fertilizer (16-16-16 NPK Mix)

Nutrapro is a controlled-release fertilizer (16-16-16) designed for trees and shrubs. Placed directly in the planting hole, it ensures nutrients reach the roots efficiently. Its micro-porous packaging releases fertilizer gradually as moisture passes through, providing consistent nourishment over time.

Available in two strengths, Nutrapro feeds trees for 1-2 years or 3-5 years, boosting growth rates by up to 25%. It’s safe for young trees, prevents root burn, and eliminates groundwater contamination. Plus, it requires no measuring, mixing, or cleanup—making tree care simple and effective.

Features

• Micropores to release fertilizer over time directly to the root system.
• Helps to keep fertilizer from getting into ground water

Specifications

1-2 year Nutrapro Packs

• 1/2 oz of either 16-8-8 or 16-16-16 NPK Fertilizer
• 2.5" x 2.5" individual pack size
• Shipped in packs of 20 or boxes of 1000

3-5 year Nutrapro Packs

• 2 oz of either 16-8-8 or 16-16-16 NPK Fertilizer
• 4"x4" individual pack size
• Shipped in either packs of 10 or boxes of 300

16-8-8 vs. 16-16-16 Fertilizer

16-8-8: Higher in nitrogen (16%) for leafy growth, with moderate phosphorus (8%) and potassium (8%). Ideal for young trees, shrubs, and early growth stages.

16-16-16: Balanced nutrients (16% each) for overall growth, root development, and flowering/fruiting. Perfect for general-purpose use and plants needing equal nutrition.

Choose 16-8-8 for foliage focus or 16-16-16 for balanced growth! ?

Details

• Easy installation, drop the entire pack in a hole then cover with dirt
• Nearly Impossible to over fertilizer to damage tree</p>
• Limits the chance of fertilizer contaminating ground water</p>
• Don't have to remember to fertilize every year.</p>
• No handling of chemical that can have advertise health effects.
• Use 1 pack per 1" caliber of tree

Installation Guide

You will install 1 pack per 1" caliber tree. If for a new planting, we recommend dropping the pack intact into the hole, cover the pack with a little dirt, then plant tree per instructions.

For an established tree, bury the pack intact, 6" down in the drip line around the tree. If multiple packs are to be used try to equally space around the tree.