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ArborPlex® (14-4-5)

With Slow Release Nitrogen

ArborPlex is formulated with slow release nitrogen, high quality phosphorus and potassium as well as micronutrients to provide consistent, extended feeding for trees and shrubs. It is an ideal solution for improving tree and ornamental development and vigor without unwanted shoot growth.

Total Nitrogen (N) 14.00%
 1.40% Ammoniacal Nitrogen
 0.95% Nitrate Nitrogen
 4.60% Urea Nitrogen
 7.05% Other Water Soluble Nitrogen*
Available Phosphate (P2O5) 4.00%
Soluble Potash (K2O) 5.00%
Iron (Fe) 0.10%
 0.10% Chelated Iron
Manganese (Mn) 0.05%
 0.05% Chelated Manganese
Zinc (Zn) 0.05%
 0.05% Chelated Zinc

*ArborPlex (14-4-5) contains 7.05% slow release nitrogen (SRN) from urea-triazone solution.

  • Consistent, extended feeding
  • Improved stress tolerance
  • Provides essential micronutriets
  • Improved vigor, especially in urban trees
  • Promotes both root and shoot growth
  • Enhances transplant survival

1 Gallon Jug – # 57519
2.5 Gallon Jug – # 57513
30 Gallon Drum – # 57514
275 Gallon Tote – # 57516

  • Nutrient deficiencies
  • Loss of vigor
  • Adverse growing conditions
  • Depleted soils

ArborPlex can be applied through soil drench, root injection or foliar feeding. It may be applied alone or tank mixed with other products. Shake well before using.

Root Injection:

Dilution Rate: Mix 1.25 gallons (160 oz.) of ArborPlex per 100-gallon tank. Apply 2-4 times per year or as needed.

Operating pressure: 150 – 200 lbs PSI or ½ gal per 4 seconds

Area Method:

Trees: Apply 50 gallons of solution per 1,000 sq. ft. Inject 4-8 inches into the soil where the feeder roots typically occur. Begin injections 1-3 feet out from the trunk to avoid injury to large roots and work in a grid pattern away from the tree to within 2 feet of the drip line. Apply 1 pint (16 fl. oz.) of diluted solution per injection site at 18 inch spacing or ½ gallon (64 fl. oz.) of diluted solution per injection site at 3 foot spacing.

Shrubs: Apply 50 gallons of solution per 1,000 sq. ft. Inject one pint (16 fl. oz.) of diluted solution per injection site. Inject 4-6 inches into the soil with 18 inch spacing between injections.

DBH Method: Use the chart below to determine the volume of diluted solution to apply per inch of trunk diameter at breast height (DBH).

Tree Size (DBH Inch) Diluted Solution / Inch DBH
Very Small (1-4”) 0.5 gallon (64 fl. oz)
Sm (5-7”) 1 gallon
Sm – Med (8-11”) 1.5 gallons
Medium (12-15”) 2 gallons
Med – Lrg (15-19”) 2.5 gallons
Large (20+”) 3 gallons

✝ Compatibility: perform a standard jar test to check compatibility with other products before mixing.

Where to Buy:

For Commercial

For Home


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