Horticultural Alliance

What Horticultural Alliance does

Horticultural Alliance LLC is a privately held biotechnology company founded in 1997 and headquartered in Sarasota, Florida, that develops and sells biological soil amendments, biostimulants, mycorrhizal inoculants, and water-management products. Its portfolio spans seven trademarked brands (DIEHARD, BIORUSH, ECOVAM, Horta-Sorb, GrowMagic, GROTAB, TIFIMAX) built on a core technology platform combining endo- and ectomycorrhizal fungi, beneficial bacteria (nitrogen-fixing and phosphorus-solubilizing strains), Trichoderma, humic acids, sea kelp and yucca extracts, and superabsorbent polymer gels. Products are sold as granular amendments, water-soluble powders, injectable inoculants, root dips, and biostimulant tablets, with patented microbial formulations underpinning the GrowMagic/GROTAB tablet line. Quantified performance claims include up to 50% reduction in irrigation needs via Horta-Sorb and elimination of transplant losses (from a 30% baseline) using DIEHARD Transplant.

The company distributes through its own direct-to-consumer e-commerce storefront with free shipping, a wholesale inquiry channel for professional buyers, phone-based sales, and active presence at industry trade shows including Cultivate 2026 (AmericanHort, Booth 2208). Primary customer segments are landscape professionals and arborists, commercial growers and nurseries, turf and lawn professionals (golf, sports, parks), home gardeners, and agriculture/specialty crop producers. Revenue is generated entirely via one-time unit-priced product sales across SKUs ranging from sub-$20 small packs to bulk containers priced above $5,000, with no subscription, licensing, or recurring revenue mechanics. The company reports no external funding, no parent company, no subsidiaries, and no M&A activity, operating as a self-funded, founder-owned specialty agri-input manufacturer with 11-50 employees.

Name

Horticultural Alliance

Legal name

Horticultural Alliance LLC

Website

https://horticulturalalliance.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Horticultural Alliance is a privately held, Sarasota-based biotechnology company that formulates and sells mycorrhizal inoculants, biostimulants, and water-management gels under seven branded lines to landscape professionals, growers, turf managers, and home gardeners across the United States.

Ownership category

akta.pro rank

Product category

Horticultural Biological Products

NAICS

Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (3253), Fertilizer and Compost Manufacturing (32531)

SIC

Agricultural Chemicals (2870)

akta.pro primary industry

Seed Inoculants & Biological Seed Enhancers (Rhizobia, Mycorrhizae, PGPR) (AFABAFAJ)

akta.pro secondary industries

Biological Seed Treatments & Inoculants (within Biologicals) (AFABAEAL), Specialty Fertilizers for Horticulture & Controlled Environment (Greenhouse, Hydroponic, Nursery) (AFABACAL), Turf & Ornamental Specialty Fertilizers (Golf, Sports Turf, Landscaping) (AFABACAM), Wetting, Spreading & Penetration Enhancers (Spreaders, Stickers, Penetrants) (AFABAGAF)

Keywords

• Biological soil amendments
• Mycorrhizal inoculants
• Horticultural biostimulants
• Water management gels
• Organic fertilizers

Headquarters

HQ city

Sarasota

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Marketing or Sales, Personnel

Revenue model

1. Product Sales: Direct sales of biological soil amendments, biostimulants, mycorrhizal inoculants, and water management products through e-commerce website and wholesale channels. Products are sold in various sizes (1lb bags, 4lb bags, 25lb boxes, bulk containers) with tiered pricing based on quantity. One-time purchase model with repeat application recommendations (every 4-6 weeks for maintenance).

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Horticultural Alliance formulates, blends, and sells biological soil amendments, mycorrhizal inoculants, biostimulants, and water-absorbing polymer gels under multiple trademarked product lines (DIEHARD, BIORUSH, ECOVAM, Horta-Sorb, GrowMagic, GROTAB, TIFIMAX). Products are delivered in granular, powder, dip, injectable, tablet, and gel formats for application via foliar spray, soil drench, root injection, drip irrigation, and transplant treatments across turf, trees, shrubs, palms, vegetables, and greenhouse crops.

Product overview

Horticultural Alliance offers a comprehensive portfolio of freshly blended biological products for growers, consisting of multiple branded product lines. The core offerings include BIORUSH® root growth stimulants (Original, Organic, Turfgrass Fe, Plus, and PSP 10-0-0) that provide beneficial bacteria, humic acid, sea kelp, and Trichoderma for enhanced nutrient uptake and plant vitality; DIEHARD™ mycorrhizal inoculants (Complete, Complete Organic, Injectable, Ecto Injectable, Root Dip, Ecto Root Dip, Palm Transplant, Transplant, Transplant Organic, Root Reviver, and Turf-Sod Pack) featuring Endo/Ectomycorrhizal fungi blends for root development and transplant success; ECOVAM® endomycorrhizal products (Endo 10X, Endo Fine, Endo Granular, GXT ULTRA SP, and Greenhouse) for soil amendment and plant establishment; Horta-Sorb® water management gels (SM, MD, LG) using superabsorbent polymers to reduce irrigation needs by up to 50%; GrowMagic organic fertilizers and biostimulant tablets (Chicken Manure, Grotab Tablets, Soil Health Tablets); and TIFIMAX Trichoderma biological inoculant. These products are designed for applications including foliar spray, soil drench, root injection, drip irrigation, and transplant treatments across turf, trees, shrubs, palms, flowers, vegetables, and greenhouse crops.

Differentiator

Problem solved

Functional benefit

Brands

• DIEHARD: Mycorrhizal inoculant products including Complete, Complete Organic, Ecto Injectable, Ecto Root Dip, Injectable, Palm Transplant, Root Dip, Root Reviver, Transplant, Transplant Organic, and Turf-Sod Pack
• BIORUSH
• ECOVAM
• GROWMAGIC
• GROTAB
• HORTA-SORB
• TIFIMAX

Products and services

• BIORUSH Original Water-soluble root growth stimulant containing beneficial bacteria (nitrogen-fixing and phosphorus-solubilizing strains), humic acid, sea kelp, Trichoderma fungi, and yucca extracts; promotes strong root development and improves nutrient uptake across all soil types.
• BIORUSH Organic Water-soluble organic root growth stimulant with beneficial bacteria, humic acid, kelp, and Trichoderma fungi; designed for organic systems to boost microbial activity and reduce fertilizer needs and heat stress.
• BIORUSH Turfgrass Fe Soluble microbial stimulant enhanced with chelated iron for turfgrass and ornamental applications; improves chlorophyll production, greening, and stress tolerance.
• BIORUSH Plus Root stimulant combining beneficial microbes with chelated iron and 3-0-11 NPK fertilizer; delivers improved green-up and stress tolerance.
• BIORUSH PSP 10-0-0 Premium water-soluble fertilizer derived from 100% vegetal protein hydrolysate with plant-stimulating peptides, amino acids, and 10% water-soluble nitrogen.
• DIEHARD Complete Granular mycorrhizal inoculant delivering an Endo and Ectomycorrhizal fungi blend with only 5% gel polymer; improves nutrient and water absorption and reduces transplant shock across flowers, turf, vegetables, and container plants.
• DIEHARD Complete Organic All-in-one organic mycorrhizal inoculant formula with reduced gel polymer; introduces beneficial Endo and Ectomycorrhizal fungi for organic growing systems.
• DIEHARD Ecto Injectable Specialized ectomycorrhizal injectable inoculant for trees (oak, pine, birch, spruce, fir, willow, larch, chestnut); delivered via root injection or soil drench.
• DIEHARD Ecto Root Dip Premium ectomycorrhizal root dip for bare root trees, shrubs, and plugs; delivers billions of beneficial ectomycorrhizal spores to improve nutrient uptake and reduce transplant shock.
• DIEHARD Injectable Injectable mycorrhizal inoculant for root injection and soil drench with Endo/Ectomycorrhizae, biostimulants, beneficial bacteria, humic acids, sea kelp, and yucca extracts.
• DIEHARD Palm Transplant Palm tree transplant product with live Endomycorrhizal fungi that quickly colonize new roots; reduces transplant stress and supports faster palm establishment.
• DIEHARD Root Dip Endo/Ectomycorrhizal inoculant for bare roots and plugs on ornamentals, vegetables, citrus, orchards, and flowering trees; incorporates Horta-Sorb water management gel.
• DIEHARD Root Reviver Professional tree root revitalization product applied as a vertimulch treatment combining Endo and Ectomycorrhizal fungi with soil-enhancing organic components to restore declining trees.
• DIEHARD Transplant Powerful back-fill soil amendment that jump-starts root growth and boosts microbial activity; one-time granular application reduces transplant shock for landscape professionals.
• DIEHARD Transplant Organic Organic soil amendment with mycorrhizae, beneficial bacteria, and humic acid for organic landscape installations.
• DIEHARD Turf-Sod Pack Sod root development product with Endomycorrhizal fungi, humic acids, beneficial bacteria, sea kelp, yucca, and Horta-Sorb for faster turf establishment.
• ECOVAM Endo 10X Premium concentrated mycorrhizal soil amendment that enhances plant vitality, root development, nutrient use, and drought tolerance in a single application.
• ECOVAM Endo Fine Dry Endomycorrhizal powder with 200 spores per gram for drip irrigation, hydroponic feed systems, and root injection.
• ECOVAM Endo Granular Premium Endo Mycorrhizal soil amendment containing seven selected endomycorrhizal species; stimulates root growth and improves drought resistance in one application.
• ECOVAM GXT ULTRA SP 2-0-0 Water-soluble powder combining biostimulants, protein hydrolysate, beneficial Bacillus bacteria, Trichoderma fungi, and Endo mycorrhizal fungi for nursery and specialty agriculture.
• ECOVAM Greenhouse 2-0-0 Water-soluble powder for greenhouse growers combining protein hydrolysate, beneficial Bacillus bacteria, Trichoderma fungi, and Endo mycorrhizal fungi for high-performance greenhouse environments.
• GrowMagic Chicken Manure Organic chicken-derived fertilizer rich in nitrogen and other nutrients to boost plant health in gardens, yards, and crops.
• GrowMagic Grotab Tablet Innovative biostimulant in tablet form with patented beneficial microbials; enhances soil fertility, root establishment, and nutrient uptake throughout the growth cycle.
• GrowMagic Soil Health Tablet Revolutionary biostimulant tablet combining patented beneficial microbials with essential compounds to activate biological processes in soil and plant.
• GROTAB 3-in-1 Tablets 12-8-4 Unique biostimulant tablet combining mycorrhizae, Trichoderma, and NPK nutrients (12-8-4); slow-release formulation enriches soil and helps plants establish faster.
• Horta-Sorb SM Granule Fine-granule water retention gel using highly absorbent polymers; retains moisture at roots and cuts watering needs by up to 50%.
• Horta-Sorb MD Granules Medium-sized water-absorbing granules for soil moisture retention; steady water supply with reduced irrigation frequency.
• Horta-Sorb LG Granules Large-granule water-absorbing gel polymers (2.0mm-4.0mm) for large-scale plantings, forestry, and hydro-mulching; reduces irrigation needs by up to 50%.
• TIFIMAX Trichoderma Atroviride Micronized wettable powder biological soil inoculant containing Trichoderma atroviride fungus; fast-acting and compatible with most common fertilizers, herbicides, and some fungicides.

Quantifiable outcome

• 30% tree loss reduced to zero losses using DIEHARD Transplant in street tree plantings
• +3 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• BioWorks: Specialty biologicals company focused on horticulture, ornamentals, and turf with biofungicides, biostimulants, and root inoculants. Directly comparable product mix and target customer segments, particularly in professional greenhouse and nursery markets.
• Lallemand Plant Care: Global supplier of biological plant care products including mycorrhizal inoculants, biostimulants, and Trichoderma-based products (LALRISE, LACTOFERT). Overlapping product technology and end markets (turf, horticulture, agriculture) make it a key direct competitor in biostimulant and inoculant categories.
• Mycorrhizal Applications: Specialist manufacturer of mycorrhizal inoculants (MykePro/MykePro Landscape) for nursery, greenhouse, and landscape markets. Directly comparable to Horticultural Alliance's DIEHARD and ECOVAM lines in fungal strain selection, granular/dip formats, and professional landscape channels.
• BioSafe Systems: Manufacturer of biological and reduced-risk crop protection, water treatment, and turf products. Overlaps with Horticultural Alliance on biostimulant and biological inputs for horticulture, agriculture, and turf, and competes for similar professional channels.

Emerging players

• Sound Agriculture: Venture-backed agricultural biotech company developing microbe-based nutrient efficiency and biostimulant products. Emerging competitor in the biologicals space targeting similar plant health and yield improvement outcomes but with deeper institutional capital.
• Arbico Organics: Direct-to-consumer and small-grower focused organic and biological inputs retailer/distributor. Compares to Horticultural Alliance on biological product offerings for home gardeners and small-scale growers but operates more as a retail/distribution brand than a formulator.

Broad incumbents

• Premier Tech Horticulture: Diversified horticulture and agriculture inputs manufacturer with PRO-MIX growing media and mycorrhizal-based biostimulants (PT Mycor). Comparable product breadth and target segments (greenhouse, nursery, landscape) but operates at much larger scale with global distribution.
• Valent BioSciences: Sumitomo Chemical subsidiary and one of the largest biorational product companies globally, offering mycorrhizal inoculants, biostimulants, and microbial solutions. Overlaps with Horticultural Alliance in biological inputs for horticulture and turf markets but serves broader global scale.
• Novonesis (formerly Novozymes): Global market leader in industrial enzymes and microbial biosolutions, with extensive biological crop and horticultural input offerings. Competes with Horticultural Alliance in biostimulants and microbial inoculants but at vastly larger scale and broader geographic reach.
• Bayer Crop Science: Global agrichemical giant with expanding biologicals portfolio via acquisitions and partnerships (Bioceres, Ginkgo Bioworks collaboration). Operates across the same horticulture, turf, and agriculture markets as Horticultural Alliance but as a broad incumbent with extensive R&D and distribution resources.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/horticulturalallianceenergizenature
• Instagraminstagram.com/horticulturalallianceusa
• TikToktiktok.com/@horticultural.all?_t=ZT-8wjdsnKj6xK&_r=1

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Horticultural Alliance