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Plinth
Foundation DossiersMostly funded, not a grantmaker — see who funds it →
Plinth

· Public charity

Center for Plant Conservation Inc

Safeguard and conserve imperiled native plants by advancing science-based practices, connecting and empowering plant conservationists, and inspiring people to protect biodiversity for future generations.

$413k
Granted FY2024still arriving
25
Grants FY2024still arriving
13
States reached
$40k
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.

Environment$1.3MFood & Nutrition$274kEducation$163kAnimals$88kArts & Culture$64kPublic Benefit$13k
02FY2024 · 25 grants

Where the money goes

Your grants by size, and where they go.

The 25 grants below total $364,756 — the rows itemised in this filing. The $412,806 headline is the total grant expense reported on the return, so the remaining $48,050 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.

By grant size · FY2024

  • Under $10k10 grants · $67k
  • $10k–50k15 grants · $297k
$14,000
Median grant
13
States reached
$11M
Total assets
Largest grants
RecipientAmount
SAN DIEGO ZOO WILDLIFE ALLIANCE$39,785
UCSC ARBORETUM AND BOTANICAL GARDEN NATIVE PLANT PROGRAM$25,750
MOJAVE DESERT LAND TRUST$23,774
BOK TOWER GARDENS$23,000
ATLANTA BOTANICAL GARDEN$23,000
CALIFORNIA BOTANIC GARDEN$22,782
THE ARBORETUM AT FLAGSTAFF$21,250
NATIVE PLANT TRUST$18,900
DESERT BOTANICAL GARDEN$15,715
PORTLAND STATE UNIVERSITY FOUNDATION$15,675
FAIRCHILD TROPICAL BOTANIC GARDEN$14,800
SAN DIEGO BOTANIC GARDEN$14,200
MISSOURI BOTANICAL GARDEN$14,000
THE FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION$12,671
INSTITUTE FOR APPLIED ECOLOGY$12,000
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 77% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%DESERT BOTANICAL GARDEN: $16k → 11%THE ARBORETUM AT FLAGSTAFF: $21k → 16%NATIVE PLANT TRUST: $19k → 8%THE ARNOLD ARBORETUM OF HARVARD UNIVERSITY: $12k → 16%SAN DIEGO BOTANIC GARDEN: $14k → 11%UCSC ARBORETUM AND BOTANICAL GARDEN NATIVE PLANT PROGRAM: $26k → 13%MOJAVE DESERT LAND TRUST: $24k → 14%CALIFORNIA BOTANIC GARDEN: $23k → 14%NATIONAL TROPICAL BOTANICAL GARDEN: $16k → 9%UH FOUNDATION: $17k → 9%INSTITUTE FOR APPLIED ECOLOGY: $12k → 12%FAIRCHILD TROPICAL BOTANIC GARDEN: $24k → 15%BOK TOWER GARDENS: $46k → 16%THE FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION: $19k → 19%PORTLAND STATE UNIVERSITY FOUNDATION: $20k → 12%INSTITUTE FOR APPLIED ECOLOGY: $25k → 18%NORTH CAROLINA BOTANICAL GARDEN: $21k → 13%ATLANTA BOTANICAL GARDEN: $33k → 13%UNITED STATES DEPT OF AGRICULTURE: $105k → 11%DENVER BOTANIC GARDENS: $19k → 12%FRIENDS OF LYON ARBORETUM: $17k → 9%CHICAGO BOTANIC GARDEN: $25k → 14%THE ARBORETUM AT FLAGSTAFF: $29k → 16%NATIVE PLANT TRUST: $13k → 8%CALIFORNIA BOTANIC GARDEN: $22k → 14%FAIRCHILD TROPICAL BOTANIC GARDEN: $19k → 15%BOK TOWER GARDENS: $23k → 16%THE FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION: $13k → 19%PORTLAND STATE UNIVERSITY FOUNDATION: $20k → 12%NORTH CAROLINA BOTANICAL GARDEN: $21k → 13%ATLANTA BOTANICAL GARDEN: $23k → 13%DENVER BOTANIC GARDENS: $13k → 12%THE ARBORETUM AT FLAGSTAFF: $25k → 16%NATIVE PLANT TRUST: $11k → 8%CALIFORNIA BOTANIC GARDEN: $11k → 14%FAIRCHILD TROPICAL BOTANIC GARDEN: $15k → 15%BOK TOWER GARDENS: $23k → 16%PORTLAND STATE UNIVERSITY FOUNDATION: $16k → 12%NORTH CAROLINA BOTANICAL GARDEN: $20k → 13%ATLANTA BOTANICAL GARDEN: $15k → 13%THE ARBORETUM AT FLAGSTAFF: $16k → 16%FAIRCHILD TROPICAL BOTANIC GARDEN: $13k → 15%PORTLAND STATE UNIVERSITY FOUNDATION: $11k → 12%NORTH CAROLINA BOTANICAL GARDEN: $17k → 13%THE ARBORETUM AT FLAGSTAFF: $15k → 16%NORTH CAROLINA BOTANICAL GARDEN: $12k → 13%THE ARBORETUM AT FLAGSTAFF: $12k → 16%THE ARBORETUM AT FLAGSTAFF: $11k → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

WA
IL
NY
MA
OR
OH
CA
CO
NE
MO
AZ
NM
NC
HI
GA
TX
FL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

85%of every dollar goes to organizations you’ve funded before.
$1.6M · 24 repeat orgs$285k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +31% since the first grant, against +24% for the ones you funded once.

24 repeat relationships — 19 still active in FY2024, 5 since wound down; 4 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

24
12

Total granted

$1.6M
$209k

Median revenue growth · since first grant

+31%
+24%

Still filing today

96%
67%

New vs renewed · share of each year

In FY2024, 79% of grant dollars renewed an existing relationship; $76k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24
EnvironmentEducationAnimalsPublic BenefitOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.

Backed again, and grew

  • MB
    MISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES
    8× · 2017–2024 · $145k · revenue +37%
  • BT
    BOK TOWER GARDENS INC
    8× · 2017–2024 · $145k · revenue +21%
  • TZ
    Transition Zone Horticultural Inst
    8× · 2017–2024 · $134k · revenue +8%

Funded once

  • US
    UNITED STATES DEPT OF AGRICULTURE
    one grant, 2022 · $105k
  • UO
    UNIVERSITY OF HAWAII FOUNDATION
    one grant, 2022 · $17k · revenue -2%
  • IG
    Individual grant recipient
    one grant, 2022 · $15k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
New York Botanical Garden

The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…

Environment
2
Sonoma Botanical Garden
—
3
Houston Botanic Garden

To enrich life through discovery, education, and the conservation of plants and the natural environment.

Environment
4
Na 'Aina Kai Botanical Gardens
Philanthropy
5
Jenkins Arboretum & Gardens

The mission of the jenkins arboretum & gardens is to preserve natural, tranquil woodlands for community enjoyment, to showcase native plants and a world class collection of rhododendrons and azaleas, and to promote environmental…

Environment
6
San Francisco Botanical Garden Society At Strybing Arboretum

Gardens of golden gate park connects people to plants, the planet, and each other. the gardens offer educational and experiential programs for visitors and actively manages the living collections.

Environment
7
Cleveland Botanical Garden

The cleveland botanical garden connects people with the wonder, beauty, and value of trees and plants, to inspire action for healthy communities.

Environment
8
Bartlett Arboretum Association Inc

To cultivate and develop an expansive collection of trees, gardens, and plants for all to explore, enjoy and study; and to provide through education and stewardship, a greener, healthier, more beautiful environment.

Environment
9
Memphis Botanic Garden Foundation Inc

The memphis botanic garden exists to enhance lives by connecting people with nature to increase awareness and appreciation of our environment.

Environment
10
Greater Des Moines Botanical Garden

Exploring, explaining and celebrating the world of plants.

Environment
11
Minnesota Landscape Arboretum Foundation

To support charitable, plant-based scientific, and educational activities exclusively for the benefit of the minnesota landscape arboretum of the university of minnesota

Environment
12
Green Bay Botanical Garden Inc

Green bay botanical garden connects people with plants by providing year-round educational and recreational experiences for everyone in an environment that engages, inspires and refreshes.

Environment

For reference, the grantee most central to the portfolio’s shape is Naples Botanical Garden Inc and the most unlike its peers is Ichauway Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 50 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%0%5–10yr19%9%10–20yr16%21%20–35yr13%29%35–55yr16%41%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%0%5–10yr19%12%10–20yr16%10%20–35yr13%27%35–55yr16%52%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/36
the rest of the field
13%
240,396/1,819,529

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

35 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 35 of the 41 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

1
Load-bearing (≥25% of a budget)
6
Early backer (in before they grew)
35/35
Grantees still filing
30/35
Grew since you first funded

Where your money sits — by cause, then by grantee

MISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES — $144,950 · EnvironmentMISSOURI BOTANICAL GARDEN BOARD OF TRUSTEESTransition Zone Horticultural Inst — $134,050 · EnvironmentTransition Zone Horticultural InstNORTH CAROLINA BOTANICAL GARDEN FOUNDATION — $119,125 · EnvironmentNORTH CAROLINA BOTANICAL GARDEN FOUNDATIONFAIRCHILD TROPICAL BOTANIC GARDEN INC — $102,050 · EnvironmentFAIRCHILD TROPICAL BOTANIC GARDEN INCNATIVE PLANT TRUST INC — $94,400 · EnvironmentNATIVE PLANT TRUST INCTHE ATLANTA BOTANICAL GARDEN INC — $81,600 · EnvironmentTHE ATLANTA BOTANICAL GARDEN INCRANCHO SANTA ANA BOTANIC GARDEN — $80,767 · EnvironmentRANCHO SANTA ANA BOTANIC GARDENLYON ARBORETUM ASSOCIATION — $64,500 · EnvironmentTHE HOLDEN ARBORETUM — $60,000 · EnvironmentINSTITUTE FOR APPLIED ECOLOGY — $44,050 · EnvironmentNATIONAL TROPICAL BOTANICAL GARDEN — $43,000 · Environment+13 more — $255,318 · Environment+13 moreBOK TOWER GARDENS INC — $144,600 · OtherBOK TOWER GARDENS INCPORTLAND STATE UNIVERSITY FOUNDATION — $127,750 · OtherPORTLAND STATE UNIVERSITY FO…UNITED STATES DEPT OF AGRICULTURE — $105,000 · OtherUNITED STATES DEPT OF AGRICU…WAIMEA ARBORETUM FOUNDATION — $44,000 · OtherWAIMEA ARBORETUM FOUNDATIONUCSC ARBORETUM AND BOTANICAL GARDEN NATIVE PLANT PROGRAM — $25,750 · Other+4 more — $43,775 · Other+4 morePresident and Fellows of Harvard College — $50,000 · EducationFLORIDA STATE UNIVERSITY RESEARCH FOUNDATION INC — $31,725 · EducationUNIVERSITY OF HAWAII FOUNDATION — $16,800 · EducationUNIVERSITY OF WASHINGTON FOUNDATION — $10,000 · EducationUC SANTA CRUZ FOUNDATION — $7,500 · EducationZOOLOGICAL SOCIETY OF SAN DIEGO — $80,335 · AnimalsCINCINNATI ZOO FOUNDATION INC — $7,800 · AnimalsTHE MERCER SOCIETY — $31,100 · Public Benefit
Environment$1,223,810Other$490,875Education$116,025Animals$88,135Public Benefit$31,100

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetMISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES — $144,950 over 8y, 0.1% of budgetBOK TOWER GARDENS INC — $144,600 over 8y, 0.7% of budgetTransition Zone Horticultural Inst — $134,050 over 8y, 4.3% of budgetPORTLAND STATE UNIVERSITY FOUNDATION — $127,750 over 8y, 0.1% of budgetNORTH CAROLINA BOTANICAL GARDEN FOUNDATION — $119,125 over 8y, 1.4% of budgetFAIRCHILD TROPICAL BOTANIC GARDEN INC — $102,050 over 8y, 0.2% of budgetNATIVE PLANT TRUST INC — $94,400 over 8y, 0.4% of budgetTHE ATLANTA BOTANICAL GARDEN INC — $81,600 over 5y, 0.1% of budgetRANCHO SANTA ANA BOTANIC GARDEN — $80,767 over 6y, 0.4% of budgetZOOLOGICAL SOCIETY OF SAN DIEGO — $80,335 over 5y, 0.0% of budgetLYON ARBORETUM ASSOCIATION — $64,500 over 8y, 38% of budgetTHE HOLDEN ARBORETUM — $60,000 over 8y, 0.1% of budgetPresident and Fellows of Harvard College — $50,000 over 8y, 0.0% of budgetINSTITUTE FOR APPLIED ECOLOGY — $44,050 over 3y, 0.5% of budgetNATIONAL TROPICAL BOTANICAL GARDEN — $43,000 over 3y, 0.1% of budgetDESERT BOTANICAL GARDEN INC — $39,815 over 4y, 0.1% of budgetSANTA BARBARA BOTANIC GARDEN — $33,090 over 4y, 0.2% of budgetCHICAGO HORTICULTURAL SOCIETY — $33,025 over 2y, 0.0% of budgetFLORIDA STATE UNIVERSITY RESEARCH FOUNDATION INC — $31,725 over 2y, 0.1% of budgetTHE MERCER SOCIETY — $31,100 over 4y, 3.1% of budgetDENVER BOTANIC GARDENS ENDOWMENT — $27,260 over 2y, 0.3% of budgetTHE CALIFORNIA DESERT LAND CONSERVANCY — $23,774 over 1y, 0.9% of budgetDENVER BOTANIC GARDENS INC — $22,500 over 2y, 0.0% of budgetQUAIL BOTANICAL GARDENS FOUNDATION — $20,254 over 1y, 0.2% of budgetCalifornia Native Plant Society — $17,100 over 2y, 0.3% of budgetUNIVERSITY OF HAWAII FOUNDATION — $16,800 over 1y, 0.0% of budgetThe Marie Selby Botanical Gardens Inc — $14,000 over 2y, 0.0% of budgetUNIVERSITY OF WASHINGTON FOUNDATION — $10,000 over 1y, 0.0% of budgetCINCINNATI ZOO FOUNDATION INC — $7,800 over 1y, 0.7% of budgetBROOKLYN BOTANIC GARDEN CORPORATION — $7,500 over 1y, 0.0% of budgetUC SANTA CRUZ FOUNDATION — $7,500 over 1y, 0.1% of budgetICHAUWAY INC — $6,000 over 1y, 0.0% of budgetOmaha Botanical Center Inc — $6,000 over 1y, 0.1% of budgetHi'ipaka LLC — $5,500 over 1y, 0.1% of budgetNAPLES BOTANICAL GARDEN INC — $5,500 over 1y, 0.0% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

The Nature ConservancyIbm International Fou…Vanguard Charitable E…Jpmorgan Chase Founda…The Blackbaud Giving …Morgan Stanley Global…The Bank of America C…National Philanthropi…Donor Advised Charita…Fidelity Investments …American Online Givin…Amazonsmile Foundation
The Nature ConservancyVA12.8× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Nature Conservancy · Ibm International Foundation · Vanguard Charitable Endowment Program · Jpmorgan Chase Foundation · The Blackbaud Giving Fund · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation Inc · Amazonsmile Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Center for Plant Conservation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.

2024
’20’21’22’23’24’25
no gov · 10%1%4%8%15%your share of their income ↑0%25%50%75%100%share of the org’s income from government →median 3%
  • Institute for Applied Ecology — 99% of income from government
  • President and Fellows of Harvard College — 7% of income from government
  • Fairchild Tropical Botanic Garden Inc — 4% of income from government
  • Naples Botanical Garden Inc — 3% of income from government
  • Native Plant Trust Inc — 3% of income from government
  • Bok Tower Gardens Inc — 1% of income from government
  • The Marie Selby Botanical Gardens Inc — 0% of income from government
  • Portland State University Foundation — 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
typical government reliance, FY20–25

Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 41 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

Generated from your IRS Form 990 e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home