The Organic Approach to Plant Health and Excellence...
Soil Amendments with Mycorrhizal Fungi from Horticultural Alliance


ALL DIEHARD™ soil conditioner products contain CORE Ingredients of: beneficial fungus - Mycorrhiza fungus and Trichoderma fungus; beneficial bacteria; bio-stimulants of humic acid, sea kelp and yucca; and many contain a horticultural water gel for water and nutrient uptake.

Products are formulated for PLANT INSTALLATIONS, MAINTENANCE
Complete satisfaction with all products from Horticultural Alliance, Inc. is guaranteed.

Components/Products - Product Comparison

Proven Soil Amendment Products with Mycorrhizal Fungi & Bio-Stimulants for Gardeners, Landscapers & Growers

soil amendments for landscaping with bio-stimulants
Products for Landscaping

bio stimulants & micorrhiza fungus for plant maintenance

Products for Maintenance

Agriculture, cirtusand fruit tree soil conditioner and root inoculants

Products for Agriculture
Organic Fertilizer products for nursery
Products for Nurseries

Root inoculants with bio-stimulants and mycorrhiza fungus for forestry

Products for Forestry
soil conditioner products for turf
Products for Turf
Raw material with bio-stimulants and mycorrhizal fungi
Raw Materials
soil enrichment products with mycorrhizal fungi for landscape architects
Products for Arborists
Live Beneficial Mycorrhizae
Live Beneficial Mycorrhizae - Mycorrhizal Fungi
Horta Sorb water retaining management gel


Horticultural Alliance soil amendments ans soil conditioners has formats for private label marketing, like Direct Shippers and is the only "One-Stop Solution" for Landscape Architects.
Soil Amendments for Homeowners
Soil Amendments for Homeowners
Our products contain a whole lot more than mycorrhizal fungus. We add other ingredients besides mycorrhiza to “stack-the-deck” with as many solid technologies that we can to make sure that our products simply cannot be used without seeing a significant difference in the performance of a plant.
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Soil conditioner products for Landscape Architects

Solutions for Landscape Architects
As a Landscape Architect you know that client loyalty is built on results. And Results Matter! Results come from the company that wrote the book and set the standards in the industry. We offer the most complete soil amendment products with mycorrhizae for the professional landscape trade in the world.
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Private labeling for Horticultural Alliance Die Hard products

Private Label DIEHARDTM Transplant
Include DIEHARDTM Transplant soil conditioner with your plant shipments. Private Labeling is available in your own company business theme, design and bag size, i.e. a 1-2 oz. bag. Your Private Label maintains a close connection to the excellence provided to your satisfied customer through your other products and services.
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Most Popular Products 

soil amendment for trees and shrubs containing mycorrhizal root inoculantsDIEHARDTM Transplant
Transplant soil amendment for trees and shrubs containing mycorrhizal fungi root inoculant compounds. Since 1997, has become the industry standard...
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biostimulant compound applied as a foliar, drench or root injection to turf, trees, shrubsDIEHARDTM BioRush®
Dry, soluble biostimulant compound applied as a foliar, drench or root injection to turf, trees, shrubs, fruit, nut and vineyards to boost plant...
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water absorbent water management gelsHorta-Sorb®
Horta-Sorb® , the highest quality super absorbent water management gel on the market today, is used in containers to hold water and nutrients in the root zone...
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Fruit & Nut Applications with bio-stimulants & mycorrhizal fungiFruit & Nut Applications
Soil conditions during early stages of citrus tree establishment are crucial to producing high-yield groves. Of all the advances made in groves...
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What is the Most Accepted Use of Superabsorbent Polymer

Traditionally, super-absorbent polymers have been used most as a bare root treatment, with the majority of focus being in forestry and landscaping businesses. Of course, as a bare root treatment, superabsorbent polymers are an ideal defense against desiccation, as well as being a proactive measure to ensure the health of tree and plant roots.
Ask us here at Horticultural Alliance about Horta-Sorb®, our flagship superabsorbent polymer brand.

Below you'll find a wide range of applications.

Another prominent usage of superabsorbent polymers is as a soil amendment among greenhouse and nursery growers.

The different forms include:
Flower Beds And Superabsorbent Polymers
Broadcast Horta-Sorb® MD at the rate of 1 lb. per 100 sq. ft. and work into the earth 4-6 inches deep. Plant as usual.

Turf And Superabsorbent Polymers
Soil Amendment: Broadcast Horta-Sorb® MD at the rate of 3 lbs. per 1,000 sq. ft. With sprigging and seeding, work into the first 1" of soil with a till or by chain drag dressing at this rate for every 2 inches of soil depth, i.e., you could apply 3X the normal rate so long as the 9 lbs. per 1,000 sq. ft. was incorporated in six inches. With sod, simply lay sod on top of treated area without the need for tilling at the 3 lb. per 1,000 sq. ft. rate.

Greenhouse/Nursery And Superabsorbent Polymers
Potting mix amendment: Mix Horta-Sorb® LG or MD (depending on the size of the container - any questions, give us a call) with potting mix at the rate of 2 pounds per cubic yard. This rate is an average. For highly drained mixes, or mixes that you want to hold even more water in use a higher rate, i.e., 3 pounds, etc.

Bare root treatment: Dipping Roots - Mix Horta-Sorb® SM at the rate of 1 lb. per 30 to 35 gallons of water to form a root dip* the consistency of a heavy gravy. Adjust application rate to achieve this consistency.

Spraying Roots: Remove screens in equipment. Prepare mixture the same as Dipping Roots.

Interior Plants And Superabsorbent Polymers
Containered plants: The best way to use Horta-Sorb® with containered plants is to add the Horta-Sorb® MD or LG (depending on size of container) at the time of potting up the plants at the rate of 2 pounds per cubic yard of mix.If the plants are already in containers then you must get the gel crystals into the ground with the use of a pencil, or similar object.

Potted plants: Poke one hole for each inch of pot diameter with a pencil, or similar object. Use the following application rates and evenly distribute into all the holes this amount of Horta-Sorb® LG.

As you can see, Horta-Sorb® superabsorbent polymers are now used in a wide range of applications. And this is just the beginning! What is the Most Accepted Use of a Superabsorbent Polymer?

Contact: Horticultural Alliance with any questions you might have.

James J. Quinn
CEOHorticultural Alliance, Inc.

Horticultural Alliance

1550 66th Ave. Dr. East, Sarasota, FL, 34243

941.739.9121 • Email

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