The Mezitt Horticultural Foundation
Historical FunderHopkinton, Massachusetts · EIN 04-3161096 · Private foundation
Half of its grants to organizations were between $1,000 and $1,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | THE MEZITT HORTICULTURAL FOUNDATION |
|---|---|
| Address | 25 PHIPPS STREET, HOPKINTON MA 01748 |
| Phone | 5084353414 |
| Form and materials | LETTER |
| Deadlines | NONE |
| Restrictions | DONATIONS RESTRICTED TO PROMOTION OF HORTICULTURAL INTERESTS. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
26% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Horticultural Research Institute | Columbus, OH | Research | $5,000 |
| Massachusetts Horticultural Society | Wellesley, MA | Education | $5,000 |
| New England Botanic Garden at Tower Hill | Boylston, MA | Education | $2,000 |
| Cornell Botanical Gardens | Ithaca, NY | Education | $1,000 |
| Friends of Bedrock Gardens | Lee, NH | Charitable - cultural and educational gardens | $1,000 |
| Friends of Mount Auburn Cemetary | Cambridge, MA | Educational programs/conservation | $1,000 |
| Grow Native Massachusetts | Waltham, MA | Charitable | $1,000 |
| Harvard University - Arnold Arboretum | Cambridge, MA | Education | $1,000 |
| Future Farmers America Foundation | Abington, MA | Education | $1,000 |
| Ipps Er Foundation | Wakefield, RI | Research education | $1,000 |
| Mnla Foundation for Educational Excellence | Conway, MA | Education | $1,000 |
| Native Plant Trust | Framingham, MA | Education | $1,000 |
| Trustees of Reservation | Boston, MA | Education | $1,000 |
| Rhododendron Society Ma Chapter | Seekonk, MA | Education | $1,000 |
| Heritage Gardens | Sandwich, MA | Education | $600 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $23,600 | 15 |
| 2024 | $20,780 | 16 |
| 2023 | $22,300 | 13 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 14, 2026 - IRS e-file batch, object ID 202631349349102188
- IRS Tax Exempt Organization Search for EIN 04-3161096
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.