Oklahoma · Nonprofit
Tulsa Garden Center
Tulsa Garden Center (Oklahoma) receives grants from 30 organizations whose IRS filings report $1,207,871 to it, the largest being H A & Mary K Chapman Charitable Trust ($356,000). 10 of them have funded it in more than one year.
- Revenue FY2024
- $631k
- Funders on record
- 30
- Grants received
- $1.2M
- Net assets
- $2.3M
What Tulsa Garden Center does
Mission
To serve as horticultural headquarters with diverse educational opportunities for our community, and to provide exceptional and unique guest experiences in Woodward Park
As stated on its FY2024 Form 990.
Programs
The Teaching Garden and Visitor Center is a demonstration garden in Woodward Park, staffed by well-trained volunteers who share their knowledge and love of gardening with the public through tours, demonstrations, classes, and other educational activities.
$4,070 spent$13,115 earned by the program0% of program spendingThe Woodward Park Program oversees capital improvements, restoration projects, and horticultural enhancements within the historic Woodward Park and gardens. Tulsa Garden Center coordinates design, fundraising, and implementation efforts that preserve the park's historic character while improving accessibility, visitor experience, and long-term sustainability.
$225,578 spent24% of program spendingThe Community Education and Events Center program encompasses the numerous lectures, classes, training, plant shows, and other special educational events hosted by the Tulsa Garden Center throughout the year, also including most all events offered by over 17 affiliated organizations which call the Tulsa Garden Center home such as the Tulsa Audubon Society, the Tulsa Sierra Club, the Tulsa Rose Society, and the Tulsa Garden Club, and lastly includes the Tulsa Garden Center's outreach activities which showcase all Woodward Park historical buildings and structures as community event venues.
$438,241 spent$5,011 earned by the program46% of program spendingOther program services, not described on the e-filed return.
$287,257 spent$20,408 earned by the program30% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $955,146.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $1.9M to $2.4M (+26%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
40% of Tulsa Garden Center’s revenue is contributions — more earned-revenue than three-quarters of its peers (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 7 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Laura Chalus
Executive Director
As listed on its FY2024 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 2 funders to 7 funders, grant income rose $4k → $442k.
3 of 30 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 11% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $45k from one payer (the payer shares this organization's board, largest Tulsa Garden Center Foundation Inc). These are real filings, and they are not money Tulsa Garden Center raised.
From the IRS filings of Tulsa Garden Center’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
Tulsa Garden Center has a broad base — no single funder exceeds 29% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
Largest funder’s share by year: 2017 72% · 2018 56% · 2019 37% · 2020 30% · 2021 42% · 2022 37% · 2023 81% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
31% of Tulsa Garden Center's funders are still giving 3 years after their first grant; 33% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
96% of Tulsa Garden Center's grant income comes from Oklahoma funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $129k arriving through sponsors registered in 3 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
Tulsa Garden Center is better cushioned than half of the 4,264 environment nonprofits its size.
this organization peer median middle 50% of peers· 4,264 environment nonprofits $100k–$1M, FY2024
Organizations like Tulsa Garden Center
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Oklahoma
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
93% of spending goes to programs.
Governance
Public support
54%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for Tulsa Garden Center: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds Tulsa Garden Center?
- Tulsa Garden Center (Oklahoma) receives grants from 30 organizations whose IRS filings report $1,207,871 to it, the largest being H A & Mary K Chapman Charitable Trust ($356,000). 10 of them have funded it in more than one year.
- How many funders does Tulsa Garden Center have?
- IRS filings report 30 organizations giving $1,207,871 in grants to Tulsa Garden Center, 10 of which have funded it in more than one year.
- Who is the largest funder of Tulsa Garden Center?
- H A & Mary K Chapman Charitable Trust is the largest funder on record, with $356,000 in grants. The full list of funders is on this page.
- How can an organization like Tulsa Garden Center find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Oklahoma. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Tulsa Garden Center →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 30 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing