Nonprofit · EIN 47-3051483
ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION
Tax-exempt · AUSTIN, TX 78746
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $900,019 | $998,929 | -$98,910 | $626,133 | $239,697 | $386,436 |
| September 30, 2024 | 990 | $989,595 | $1,098,988 | -$109,393 | $578,891 | $93,546 | $485,345 |
| September 30, 2023 | 990 | $954,104 | $883,011 | $71,093 | $727,941 | $167,792 | $560,149 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $115,019
- Program service revenue
- $578,762
- Investment income
- $388
- Net income from fundraising events
- $16,984
- Net income from sales of inventory
- $188,045
- Other revenue
- $205,850
Expenses
- Grants and similar amounts paid
- $2,000
- Compensation of officers, directors and key employees
- $126,374
- Other salaries and wages
- $512,358
- Salaries, compensation and benefits (total)
- $699,433
- Professional fundraising fees
- $0
- Accounting fees
- $55,000
- Occupancy
- $221
- Travel
- $2,799
- Depreciation
- $5,049
- Program services (functional)
- $606,834
- Management and general (functional)
- $329,020
- Fundraising (functional)
- $63,075
Balance sheet and other
- Total assets, start of year
- $578,891
- Total assets, end of year
- $626,133
- Total liabilities, end of year
- $239,697
- Net assets, end of year
- $386,436
- Land, buildings and equipment
- $14,928
- Net assets without donor restrictions
- -$112,694
- Net assets with donor restrictions
- $499,130
- Gross receipts
- $1,052,597
- Employees
- 29
- Volunteers
- 800
- Year formed
- 2015
- State of legal domicile
- TX
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| HOLLY HAWK | EXECUTIVE DIRECTOR Officer | 2 | $125,000 |
| ABBY FRANK | COUNCIL Trustee or director, Officer | 2 | $0 |
| AUGUST HARRIS | TREASURER Trustee or director, Officer | 10 | $0 |
| ELLEN SINGLETON | AAGC REP Trustee or director, Officer | 2 | $0 |
| HAL SANDERS | COUNCIL Trustee or director, Officer | 10 | $0 |
| KATE TOLLIVER | SECRETARY Trustee or director, Officer | 5 | $0 |
| LEAH ROMERO | CHAIR Trustee or director, Officer | 10 | $0 |
| MICHAEL GARCIA | SECRETARY Trustee or director, Officer | 5 | $0 |
| SALLY DICKSON | AAGC REP Trustee or director, Officer | 2 | $0 |
| STEPHANIE HUNTER | VICE CHAIR Trustee or director, Officer | 2 | $0 |
| AMY VOORHES | BOARD MEMBER Trustee or director | 2 | $0 |
| AUTUMN KEISER | BOARD MEMBER Trustee or director | 2 | $0 |
| CASSIE GOWAN | BOARD MEMBER Trustee or director | 2 | $0 |
| CHUCK FOSTER | BOARD MEMBER Trustee or director | 2 | $0 |
| CURT FINCH | BOARD MEMBER Trustee or director | 2 | $0 |
6 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JEN POTEAT | BOARD MEMBER Trustee or director | 2 | $0 |
| MARGARET GALTON | BOARD MEMBER Trustee or director | 2 | $0 |
| RACHEL RAISE | BOARD MEMBER Trustee or director | 2 | $0 |
| ROBERT RAMOS | BOARD MEMBER Trustee or director | 2 | $0 |
| VIJAY GANJU | BOARD MEMBER Trustee or director | 2 | $0 |
| WILDA CAMPBELL | BOARD MEMBER Trustee or director | 2 | $0 |
990 for the year ended September 30, 2024: 16 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PATRICK O'DANIEL | TREASURER Trustee or director, Officer | 5 | $0 |
| KATE TOLLIVER | SECRETARY Trustee or director, Officer | 5 | $0 |
| LEAH ROMERO | CHAIR Trustee or director, Officer | 10 | $0 |
| STEPHANIE HUNTER | VICE CHAIR Trustee or director, Officer | 5 | $0 |
| HAL SANDERS | COUNCIL Trustee or director, Officer | 10 | $0 |
| SALLY DICKSON | AAGC REP Trustee or director, Officer | 2 | $0 |
| JENNIFER POTEAT | BOARD MEMBER Trustee or director | 2 | $0 |
| CURT FINCH | BOARD MEMBER Trustee or director | 2 | $0 |
| RACHEL RAISE | BOARD MEMBER Trustee or director | 2 | $0 |
| WILDA CAMPBELL | BOARD MEMBER Trustee or director | 2 | $0 |
| CHUCK FOSTER | BOARD MEMBER Trustee or director | 2 | $0 |
| ABBY FRANK | BOARD MEMBER Trustee or director | 2 | $0 |
| VIJAY GANJU | BOARD MEMBER Trustee or director | 2 | $0 |
| CASSIE GOWAN | BOARD MEMBER Trustee or director | 2 | $0 |
| AUTUMN KEISER | BOARD MEMBER Trustee or director | 2 | $0 |
| ROBERT RAMOS | BOARD MEMBER Trustee or director | 2 | $0 |
990 for the year ended September 30, 2023: 16 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JUDITH CRAFT | BOARD MEMBER Trustee or director | 1 | $2,998 |
| DAVE MARTIN | PRESIDENT Trustee or director, Officer | 10 | $0 |
| PATRICK O'DANIEL | TREASURER Trustee or director, Officer | 5 | $0 |
| JENNIFER POTEAT | VICE CHAIR Trustee or director, Officer | 5 | $0 |
| CURT FINCH | SECRETARY Trustee or director, Officer | 5 | $0 |
| MARGARET GALTON | BOARD MEMBER Trustee or director | 1 | $0 |
| JENNIFER ORR | BOARD MEMBER Trustee or director | 1 | $0 |
| HAL SANDERS | BOARD MEMBER Trustee or director | 5 | $0 |
| SALLY DICKSON | BOARD MEMBER Trustee or director | 1 | $0 |
| AMY VOORHEES | BOARD MEMBER Trustee or director | 1 | $0 |
| RACHEL RAISE | BOARD MEMBER Trustee or director | 1 | $0 |
| WILDA CAMPBELL | BOARD MEMBER Trustee or director | 1 | $0 |
| STEPHANIE SAULMON | BOARD MEMBER Trustee or director | 1 | $0 |
| JEFF PAVLAT | BOARD MEMBER Trustee or director | 1 | $0 |
| LEAH ROMERO | BOARD MEMBER Trustee or director | 1 | $0 |
| KAREN KALERGIS | BOARD MEMBER Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 2220 BARTON SPRINGS RD, AUSTIN, TX 78746-5737
- Principal officer (990 for 2024)
- HEATHER DE LA GARZA, 2220 BARTON SPRINGS RD, AUSTIN, TX 78746
- Signed the 990
- AUGUST HARRIS, TREASURER
- Phone
- (512) 477-8672
- Website
- WWW.ZILKERGARDEN.ORG
- Return prepared by
- EASY OFFICE DBA JITASA
Mission
THE MISSION OF THE ZILKER BOTANICAL GARDEN CONSERVANCY IS TO CULTIVATE COMMUNITY AND FOSTER LIFE-LONG LEARNING THAT INSPIRES AN APPRECIATION OF THE BOTANICAL WORLD.
Program accomplishments
- GENERAL PROGRAMS - GENERAL PROGRAMS AT ZILKER BOTANICAL GARDEN CONSERVANCY PROVIDE COMMUNITY ENGAGEMENT AND EDUCATIONAL OPPORTUNITIES FOR VISITORS OF ALL AGES. COMMUNITY ENGAGEMENT PROGRAMS INCLUDE PUBLIC EVENTS SUCH AS BANDS IN BLOOM, WELLNESS OFFERINGS LIKE YOGA, SEASONAL INSTALLATIONS SUCH AS THE WOODLAND FAERIE TRAIL, AND SEASONAL CELEBRATIONS INCLUDING YULE IN THE GARDEN. EDUCATIONAL PROGRAMS INCLUDE HORTICULTURAL WORKSHOPS, GUIDED TOURS, DOCENT-LED SCHOOL FIELD TRIPS, AND HANDS-ON LEARNING EXPERIENCES SUCH AS DINO DAYS AND ROOTS AND WINGS. THESE PROGRAMS PROMOTE ENVIRONMENTAL STEWARDSHIP, EXPAND ACCESS TO NATURE-BASED EDUCATION, AND FOSTER COMMUNITY CONNECTION WITHIN A PUBLIC GARDEN SETTING.Expenses $231,592 · grants $2,000 · revenue $54,043
- ADMISSIONS - THE ADMISSIONS PROGRAM SUPPORTS PUBLIC ACCESS TO ZILKER BOTANICAL GARDEN THROUGH PAID ENTRY FOR NON-MEMBERS, GENERATING A PRIMARY SOURCE OF EARNED REVENUE FOR THE CONSERVANCY. AS A NONPROFIT PARTNER OPERATING WITHIN A PUBLIC-PRIVATE MODEL WITH THE CITY OF AUSTIN, ADMISSIONS REVENUE HELPS SUSTAIN DAILY OPERATIONS, GUEST SERVICES, AND THE ONGOING CARE AND IMPROVEMENT OF THE GARDEN. ADMISSIONS OPERATIONS INCLUDE FRONT GATE AND GIFT SHOP STAFFING TO ENSURE A WELCOMING AND ACCESSIBLE EXPERIENCE FOR ALL VISITORS. THIS PROGRAM ENABLES CONTINUED ACCESS TO A HIGH-QUALITY PUBLIC GARDEN EXPERIENCE FOR THE COMMUNITY.Expenses $139,008 · revenue $353,689
- GARDEN IMPROVEMENTS - THE GARDEN IMPROVEMENTS PROGRAM SUPPORTS THE PRESERVATION, ENHANCEMENT, AND LONG-TERM SUSTAINABILITY OF ZILKER BOTANICAL GARDEN THROUGH DIRECT INVESTMENTS IN THE GARDEN GROUNDS AND FACILITIES. THIS INCLUDES CAPITAL IMPROVEMENTS, LANDSCAPE ENHANCEMENTS, INFRASTRUCTURE PROJECTS, AND CONTRACTED SERVICES THAT IMPROVE THE VISITOR EXPERIENCE AND SUPPORT HORTICULTURAL CARE. FUNDS MAY ALSO SUPPORT STAFF AND PROGRAMMATIC ROLES DIRECTLY TIED TO GARDEN OPERATIONS, VOLUNTEER COORDINATION, AND EDUCATIONAL PROGRAMMING. THESE EFFORTS ENSURE THE CONTINUED HEALTH, ACCESSIBILITY, AND QUALITY OF THE GARDEN AS A PUBLIC RESOURCE.Expenses $104,282 · revenue $154,041
- OTHER PROGRAMS - ARTS AND CULTURE, COMMUNITY ENGAGEMENT, EDUCATION, WELLNESS, GIFT SHOP, MEMORIALS/BRICKS/BENCHES.Expenses $131,952 · revenue $16,989
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990 on file |
IRS record
- EIN
- 47-3051483
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2015
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C40)
- Assets (IRS master file)
- $626,133
- Income (IRS master file)
- $1,052,597
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $900,019 | $998,929 | $626,133 | XML |
| 990 | September 2024 | $989,595 | $1,098,988 | $578,891 | XML |
| 990 | September 2023 | $954,104 | $883,011 | $727,941 | XML |
| 990 | September 2022 | $725,377 | $583,920 | $568,983 | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
| 990 | September 2019 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 47-3051483).
Questions about ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION
- What is the EIN of ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION?
- The employer identification number (EIN) of ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION is 47-3051483.
- Is ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
- Are donations to ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION?
- The 990 for the year ended September 30, 2025 names HEATHER DE LA GARZA.
- Who are the officers and directors of ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION?
- The 990 for the year ended September 30, 2025 lists 21 people; 1 received compensation from the organization, the highest $125,000 (HOLLY HAWK, EXECUTIVE DIRECTOR).
- How much revenue does ZILKER BOTANICAL GARDEN CONSERVANCY NON-PROFIT CORPORATION have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $900,019, expenses of $998,929 and total assets of $626,133 at year end.
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