Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

DIEHARD™ Root Reviver is an Endo/Ectomycorrhizal inoculant used as a vertimulch for established trees in decline.

The Industry’s First Complete Vertimulch Inoculant,. Improves Survival, Rooting, Flowering, Water Absorption, Nutrient Availability, Yields and Production. Product Reduces Plant Losses Fertilizer Use, Need Of Pesticides, Heat Stress Damage, Irrigation Frequency, and Losses From Drought Conditions.


  • Species: All plants that associate with endo-and ectomycorrhiza fungi.
  • Fungicides: Non-systemic fungicides normally have no effect.
  • Foliar applied fungicides normally have no effect. Systemic fungicides may be applied 2 weeks before or after use of product. Fungicide use according to label instructions do not extinguish mycorrhiza, they only inhibit development temporarily.


What it is!

DIEHARD Root Reviver is used to inoculate the roots of tree and shrubs with live beneficial mycorrhizal fungi.

This results in quick root recovery

Tip: The Industry's First Complete Vertimulch Inoculant

What it does!

Survival, Rooting, Water Absorption, Nutrient Availability, Plant Health, Soil Health, Flowering, Yields and Production

Plant Loss, Fertilizer Use, Need of Pesticides, Heat Stress Damage, Irrigation Frequency, Losses from Drought Conditions

Endo-Mycorrhizal Fungi, Beneficial Bacteria, Trichoderma Fungi, Sea Kelp Extract, Humic Acids, Horta-Sorb® Water Gel, Root Promoting Vitamins and Amino Acids.

What it contains!

Endo-Mycorrhizae Fungi
Ecto-Mycorrhizae Fungi
Nitrogen Fixing, Phosphate solubilizing
Growth Promoting Bacteria

Humic Acid
Sea Kelp Extract
Yucca Plant Extract
Amino Acids
Trichoderma Fungi

Horta-Sorb® Water Gel
Root Promoting Vitamins

How is it used?

Established Trees:
  • Make holes in a 2 ½ to 3 foot grid pattern. Mix product at a rate of 6 oz. per hole with soil removed and place into the top 6-8” of hole.
Stress Recovery
Small and newly planted trees and shrubs::
  • Punch holes around the root ball (4 holes per inch caliper). Apply 3 to 6 oz. per hole (2“ wide x 6-8”” deep) water in.

Product Information

Weight N/A
Dimensions N/A
Select Sizes

4 lb. Bag, 4 lb. x 10 Case, 10 lb. Box, 10 lb. x 4 Case, 25 lb. Box


  1. Rated 5 out of 5

    Don Gardner

    In April 2004, we received a call from a lady wanting a 2nd opinion on the fate of 80 inch diameter oak tree that had been hit by lighting. Two arbor companies had told her to take the tree down and not try to save it. We used your DIEHARD Root Reviver vertimulch treatment just as the tree began its spring flush. By November the tree had put on over two feet of new growth and her adjoining shrubs looked the best she had ever seen. In a word DIEHARD Root Reviver is a FANTASTIC PRODUCT and does more for growing our business than any advertising could ever do.

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