EIN 36-1505770

The Morton Arboretum

IRS 501(c) type
Num. employees
Year formed
Most recent tax filings
To collect and study trees, shrubs, and other plants from around The world, to display them across naturally beautiful landscapes for people to study and enjoy, and to learn how to grow them in ways that enhance our environment. Our goal is to encourage The planting and conservation of trees and other plants for a greener, healthier, and more beautiful world. Collect, study, display and grow trees; to encourage The planting and conservation of trees.
Total revenues
Total expenses
Total assets
Num. employees

Program areas at The Morton Arboretum

Plants and collections: The Arboretum grows and displays a rich diversity of trees, shrubs, and other plants that are evaluated for their suitability for The midwestern united states. These living collections include 222,000 plant specimens representing 4,650 different kinds of plants. Arranged by geographic, taxonomic, and other special groupings, The collections are enhanced by restored natural areas of native plants and ecosystems. The Arboretum's work in development of new plants results in useful and attractive trees and shrubs that are introduced in The marketplace.
Science and conservation: The center for tree science focuses on and builds professional collaborations for practical scientific studies; key areas include tree health, tree improvement, and woodland conservation.co-located with research labs at The Arboretum is a herbarium with a collection of 200,000 dried specimens for botanical research. Through global tree conservation programs, The Arboretum leads partnerships and assists efforts to prevent tree extinction and secure threatened tree species. The chicago region trees initiative develops strategies for urban tree and forest improvement, advocating for trees in 274 communities in seven counties. Arbnet, facilitated by The Morton Arboretum, is an interactive professional community of arboreta with programs to foster advancements among tree-focused gardens.
Learning and engagement: programs, services, and opportunities are relevant to public needs and interests in learning about plants and nature in ways that provide meaningful experiences and improve The world. Through The thornhill education center, classes and other offerings on site, online, and through outreach programs serve adults, youth and family audiences, schools, and scouts. Also available are teacher-training resources and a cooperative botany degree program with regional colleges and universities. The sterling Morton library, with 112,000 items, contains publications on botany, horticulture, natural history, and ecology; rare books, periodicals, and catalogs; and botanical artworks; information is also accessible online. The plant clinic answers inquiries about plant selection and care.
Visitor programs: welcomed 1,239,863 visitors, maintaining The institution as one of The most visited public gardens in north america. Served membership of 60,994 households. Hosted various special events and seasonal activities as opportunities for new and returning visitors and members to engage in mission. Provided patron services and accommodations through visitor-oriented center, tours, The Arboretum store, The ginkgo restaurant, banquet, and conference facilities.

Grants made by The Morton Arboretum

GranteeGrant descriptionAmount
Atlanta Botanical GardenConservation of Living Collections$50,560
Friends of the Forest Preserve District of DuPage CountyPreserving Oak Ecosystems$40,000
University of Vermont and State Agricultural CollegeTree Replenishment$36,700
...and 6 more grants made

Who funds The Morton Arboretum

Grants from foundations and other nonprofits
Daniel P Haerther Charitable TrustGeneral Purposes$307,500
The Chuck and Monica Mcquaid Family FoundationUnrestricted$225,000
Vanguard Charitable Endowment ProgramFor Recipient's Exempt Purpose$159,000
...and 48 more grants received totalling $1,356,460
Federal funding details
Federal agencyProgram nameAmount
Department of AgricultureURBAN AND COMMUNITY FORESTRY PROGRAM$418,884
National Science FoundationBIOLOGICAL SCIENCES$269,488
...and 26 more federal grants / contracts

Personnel at The Morton Arboretum

Gerard T DonnellyPresident and Chief Executive Officer$688,221
James S FawleyVice President - Finance and Chief Financial Officer / Vice President of Finance and Chief Financial Officer$247,551
Alicia LavireVice President - Marketing and Communications$178,803
Kathleen SpiessVice President of Development / Vice President - Development / Senior Director - Major Gifts / Senior Director of Major Gifts$217,071
Preston Wong BautistaVice President - Learning and Engagement$157,221
...and 15 more key personnel

Financials for The Morton Arboretum

RevenuesFYE 12/2021
Total grants, contributions, etc.$30,966,948
Program services$9,543,344
Investment income and dividends$3,810,722
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$866,055
Net gain from sale of non-inventory assets$14,903,733
Net income from fundraising events$-67,248
Net income from gaming activities$0
Net income from sales of inventory$4,947,851
Miscellaneous revenues$0
Total revenues$64,971,405

Form 990s for The Morton Arboretum

Fiscal year endingDate received by IRSFormPDF link
2019-122021-03-01990View PDF
2018-122020-01-22990View PDF
2017-122019-02-21990View PDF
2016-122017-12-21990View PDF
2015-122017-02-25990View PDF
...and 6 more Form 990s

Organizations like The Morton Arboretum

New York Botanical Garden (NYBG)Bronx, NY$97,993,949
Chicago Botanic GardenGlencoe, IL$72,376,611
Brooklyn Botanic Garden CorporationBrooklyn, NY$28,581,525
Atlanta Botanical GardenAtlanta, GA$44,604,397
Dallas Arboretum and Botanical SocietyDallas, TX$28,035,865
Desert Botanical GardenPhoenix, AZ$19,043,507
Denver Botanic GardensDenver, CO$45,589,045
American Museum of Natural History (AMNH)New York, NY$198,055,556
Monterey Bay AquariumMonterey, CA$114,460,200
Whitney Museum of American ArtNew York, NY$67,707,000
Data update history
May 29, 2023
Updated personnel
Identified 2 new personnel
May 17, 2023
Used new vendors
Identified 4 new vendors, including , , , and
May 5, 2023
Received grants
Identified 1 new grant, including a grant for $3,500 from The Richard Laurence Parish Foundation
August 2, 2022
Received grants
Identified 9 new grant, including a grant for $45,500 from The Chicago Community Trust
October 3, 2021
Received grants
Identified 17 new grant, including a grant for $307,500 from Daniel P Haerther Charitable Trust
Nonprofit Types
Horticultural organizationsMuseumsCharities
EnvironmentPublic policy
MembershipsPolitical advocacyLobbyingFundraising eventsOperates internationallyReceives government fundingEndowed supportCommunity engagement / volunteeringGala fundraisersTax deductible donations
General information
4100 Illinois Route 53
Lisle, IL 60532
Metro area
Chicago-Naperville-Elgin, IL-IN-WI
DuPage County, IL
Website URL
(630) 968-0074
Facebook page
Twitter profile
IRS details
Fiscal year end
Taxreturn type
Form 990
Year formed
Eligible to receive tax-deductible contributions (Pub 78)
NTEE code, primary
C41: Botanical Gardens, Arboreta, and Botanical Organizations
NAICS code, primary
7121: Museums, Historical Sites, and Similar Institutions
Parent/child status
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