EIN 36-1505770

The Morton Arboretum

IRS 501(c) type
501(c)(3)
Num. employees
564
City
Year formed
1922
Most recent tax filings
2023-12-01
Description
A tree-focused center in Lisle, IL that collects, studies, displays, and grows trees to encourage their planting and conservation.
Total revenues
$45,149,282
2023
Total expenses
$52,201,196
2023
Total assets
$354,910,949
2023
Num. employees
564
2023

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 106,714 specimens representing 4,067 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 generates and communicates The scientific knowledge and technical expertise necessary to understand and sustain trees and their ecosystems, in all their diversity, in built environments, natural landscapes, and living collections. The Arboretum houses research labs and a herbarium with a collection of 216,500 dried specimens for botanical research. Through The global tree conservation programs, The Arboretum leads partnerships and assists efforts to prevent tree extinction and secure threatened tree species, with a focus on oaks. The chicago region trees initiative develops strategies for urban tree and forest improvement, advocating for trees in communities throughout The chicago region and The state of Illinois. Arbnet, facilitated by The Morton Arboretum, is an interactive professional community of arboreta and an Arboretum accreditation program that fosters 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. Based in 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 117,000 items, contains publications on botany, horticulture, natural history, and ecology; botanical artworks; rare books, periodicals, and catalogs; information is also accessible online. The plant clinic answers inquiries about plant selection and care.
Visitor programs: welcomed 1,092,088 visitors, maintaining The institution as one of The most visited public gardens in north america. Served membership of 56,321 households. Open every day of The year for driving/bicycling or guided tram tours. Specialty gardens include The grand garden, 4-acre children's garden, 1-acre maze. The visitor center houses interpretive displays, The Arboretum store, and The gingko restaurant. Special events and thematic exhibitions are offered throughout The year. Conference and banquet facilities are available for rental.

Grants made by The Morton Arboretum

GranteeGrant descriptionAmount
Atlanta Botanical GardenCoordinating Consortia To Conserve Living Plant Collections$72,383
OpenlandsExpanding Tree Canopy To Reduce Stormwater Impacts$60,116
Montgomery Botanical CenterCoordinating Consortia To Conserve Living Plant Collections$39,861
...and 12 more grants made

Who funds The Morton Arboretum

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
Hamill Family FoundationUnrestricted$1,000,000
Hamill Family FoundationUnrestricted$666,000
Susan and Stephen Baird Family FoundationGeneral and Unrestricted$310,000
...and 80 more grants received totalling $4,222,464

Personnel at The Morton Arboretum

NameTitleCompensation
Koski JillPresident and Chief Executive Officer$501,766
Fawley JamesVice President - Finance and Chief Financial Officer$270,816
Michael M ReeseVice President of Finance
Lavire AliciaVice President - Marketing and Guest Experience / Vice President - Marketing and Communications$213,529
Spiess KathleenVice President - Development$237,472
...and 26 more key personnel

Financials for The Morton Arboretum

RevenuesFYE 12/2023
Total grants, contributions, etc.$18,150,596
Program services$10,675,996
Investment income and dividends$3,763,279
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$1,490,476
Net gain from sale of non-inventory assets$4,028,187
Net income from fundraising events$-111,248
Net income from gaming activities$0
Net income from sales of inventory$7,151,996
Miscellaneous revenues$0
Total revenues$45,149,282

Form 990s for The Morton Arboretum

Fiscal year endingDate received by IRSFormPDF link
2023-122024-11-05990View PDF
2022-122023-11-01990View PDF
2021-122022-11-11990View PDF
2020-122021-11-08990View PDF
2019-122021-03-01990View PDF
...and 10 more Form 990s
Data update history
December 24, 2024
Updated personnel
Identified 2 new personnel
December 24, 2024
Used new vendors
Identified 2 new vendors, including , and
November 3, 2024
Updated personnel
Identified 1 new personnel
October 23, 2024
Received grants
Identified 5 new grant, including a grant for $109,500 from The Chicago Community Trust
August 26, 2024
Received grants
Identified 27 new grant, including a grant for $175,000 from The Chuck and Monica Mcquaid Family Foundation
Nonprofit Types
Grantmaking organizationsHorticultural organizationsMuseumsCharities
Issues
Environment
Characteristics
MembershipsPolitical advocacyLobbyingFundraising eventsOperates internationallyState / local levelReceives government fundingEndowed supportCommunity engagement / volunteeringGala fundraisersTax deductible donationsAccepts online donations
General information
Address
4100 Illinois Route 53
Lisle, IL 60532
Metro area
Chicago-Naperville-Elgin, IL-IN-WI
County
DuPage County, IL
Website URL
mortonarb.org/ 
Phone
(630) 968-0074
Facebook page
MortonArboretum 
Twitter profile
@mortonarboretum 
IRS details
EIN
36-1505770
Fiscal year end
December
Taxreturn type
Form 990
Year formed
1922
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
C41: Botanical Gardens, Arboreta, and Botanical Organizations
NAICS code, primary
7121: Museums, Historical Sites, and Similar Institutions
Parent/child status
Independent
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