About Horticultural Research Institute
To direct, fund, promote and communicate horticultural research, which increases the quality and value of plants, improves the productivity and profitability of the horticulture industry, and protects and enhances the environment.
Focus Areas
Plant health and pest managementProduction efficiency and mechanization/automationPollinator researchBoxwood blight and disease managementQuantifying environmental and human health benefits of plantsConsumer/marketing research for horticultureScholarships and workforce development
Who They Fund
commercial nursery and greenhouse growersgreen industry / landscape professionalsregional nursery sectors (e.g., Tennessee, California)
About Horticultural Research Institute
Horticultural Research Institute Inc backs applied research that addresses horticultural disease pressure, production efficiency, pollinator research, and the market performance of plants. Its recent grants show a clear preference for projects with practical outcomes for the green industry: Oregon State University received $55,000 for a national response to low-fertility cultivars of invasive nursery crops, while North Carolina State University received $40,000 to study resistance in Cercis species. Other grants point to the same pattern, including support for University of California Davis on climate-ready landscape plants and for Michigan State University on RFID plant-label detection with drone-mounted and handheld readers. The foundation also funds research tied to nursery and greenhouse operations, such as diagnostics for Phytophthora species, irrigation efficiency modeling, and alternative weed and fumigation approaches. Scholarships are part of the portfolio as well, alongside research awards, which places the foundation at the intersection of industry problem-solving and workforce development. Across these awards, the emphasis is on projects that can be used by growers, researchers, and related horticulture professionals rather than abstract study alone.
What Horticultural Research Institute Funds
Plant health is a major theme in the grant list. The foundation awarded $35,000 to the University of California Davis for preventing disease outbreaks in ornamental nurseries by improving diagnostics for Phytophthora species, and $32,000 to The Ohio State University for improving detection and resistance screening of bacterial pathogen threats to the geranium industry. Disease resistance also appears in the 2025 grant to North Carolina State University for discovering Cercis VSD resistance from relative Cercis species for C. canadensis. Production and mechanization show up in the $37,050 grant to Michigan State University - Grant for better detection of RFID plant labels with drone-mounted and handheld readers. The foundation also supports plant-benefit and consumer-focused research, including $35,000 to Tufts University for measuring cardiovascular health and well-being from visual exposure to plants, and $35,000 to The University of Tennessee for assessing the effectiveness of marketing strategies of native plants.
How Horticultural Research Institute Gives
Financial Snapshot
Annual Giving
$420K
Total Assets
$23.6M
Total Revenue
$3M
Total Expenses
$1.1M
Typical Grant Size
Most grants fall between $30K and $35K, with a median of $35K.
25th Percentile
$30K
Median
$35K
75th Percentile
$35K
Geographic Reach
National18 states funded
About 8% of grants go to recipients in TN.
Funding intensity
LowHigh
Headquarters
Leadership
KAREN LIMBERT
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