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DIEHARD™ Root Reviver

DIEHARD Root Reviver is a powerful Endo/Ectomycorrhizal inoculant applied as a vertimulch treatment to restore declining trees. As the industry’s first complete vertimulch inoculant, it not only enhances root health and nutrient uptake but also improves flowering and water absorption. Furthermore, it reduces losses caused by drought, heat, and pests. Therefore, it is ideal for arborists and landscapers looking to revive stressed or mature trees.

Grow trees with confidence using Horticultural Alliance products
Trees
Grow evergreen trees with confidence using Horticultural Alliance products
Evergreen Trees
Grow shrubs with confidence using Horticultural Alliance products
Shrubs
Grow evergreen shrubs with confidence using Horticultural Alliance products
Evergreen Shrubs

Price range: $41.18 through $283.35

end=”1504″>DIEHARD Root Reviver is a professional tree root revitalization product designed to restore declining trees through a targeted vertimulch application. As the first complete vertimulch inoculant in the industry, it offers a proven solution for arborists, landscapers, and municipal tree care professionals seeking to reverse the effects of environmental stress, soil compaction, and nutrient deficiencies in mature or stressed trees.

rt=”1506″ data-end=”1941″>This powerful tree root revitalization product combines Endo and Ectomycorrhizal fungi with soil-enhancing organic components. These beneficial fungi form symbiotic relationships with tree roots, dramatically improving the plant’s ability to absorb water and nutrients such as phosphorus and nitrogen. This enhanced root performance supports stronger growth, deeper rooting, increased flowering, and improved overall tree vitality.

In addition to boosting tree health, DIEHARD Root Reviver reduces the need for chemical inputs. It helps minimize fertilizer use, pesticide dependence, irrigation frequency, and damage from drought and heat stress—making it both effective and environmentally responsible. It’s the ideal treatment for urban trees, landscape specimens, or orchard trees that show signs of decline but still have recovery potential.

Applied as a vertimulch treatment, the product penetrates deep into the root zone where it immediately begins improving microbial activity and soil structure. Within weeks, trees show visible improvement in leaf color, canopy density, and resilience to stress.

DIEHARD Root Reviver is the go-to tree root revitalization product for professionals seeking sustainable, science-backed results. Whether restoring an old oak in a city park or a citrus tree in a stressed grove, it brings trees back to life—naturally.

HOW IS IT USED?

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: For 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.

The information provided in our informational documents is for general guidance only and is subject to change without notice. While we strive to ensure accuracy and relevance, updates or modifications may occur over time. 

Your order will typically ship within 3-5 business days. Please note that weather conditions and carrier delays may occasionally affect shipping times. If your item arrives damaged, please refer to our return policy for assistance

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