# List of botanical gardens and arboretums in Illinois

This list of botanical gardens and arboretums in Illinois is intended to include all significant botanical gardens and arboretums in the U.S. state of Illinois.
| Name | Affiliation | City | Coordinates |
| Anderson Japanese Gardens | | Rockford | 42°17′21.12″N 89°3′29.16″W﻿ / ﻿42.2892000°N 89.0581000°W﻿ / 42.2892000; -89.0581000 |
| Bethalto Arboretum | | Bethalto | 38°54′45″N 90°02′00″W﻿ / ﻿38.9126°N 90.0332°W﻿ / 38.9126; -90.0332 |
| Cantigny | | Wheaton | 41°51′17″N 88°09′21″W﻿ / ﻿41.85472°N 88.15583°W﻿ / 41.85472; -88.15583 |
| Century Park Arboretum | | Vernon Hills | 42°14′49.81″N 87°57′42.58″W﻿ / ﻿42.2471694°N 87.9618278°W﻿ / 42.2471694; -87.9618278 |
| Chicago Botanic Garden | | Glencoe | 42°8′54″N 87°47′24″W﻿ / ﻿42.14833°N 87.79000°W﻿ / 42.14833; -87.79000 |
| Downers Grove Park District | | Downers Grove | 41°48′24.78″N 88°2′41.78″W﻿ / ﻿41.8068833°N 88.0449389°W﻿ / 41.8068833; -88.0449389 |
| The Elmhurst Arboretum | | Elmhurst | 41°53′45.38″N 87°56′41.4″W﻿ / ﻿41.8959389°N 87.944833°W﻿ / 41.8959389; -87.944833 |
| Evanston Township High School Arboretum | Evanston Township High School | Evanston | 42°2′47.61″N 87°42′2.44″W﻿ / ﻿42.0465583°N 87.7006778°W﻿ / 42.0465583; -87.7006778 |
| Fell Arboretum | Illinois State University | Normal | 40°30′38.88″N 88°59′36.6″W﻿ / ﻿40.5108000°N 88.993500°W﻿ / 40.5108000; -88.993500 |
| The Gardens at SIUE | Southern Illinois University | Edwardsville | 38°48′32″N 89°59′34″W﻿ / ﻿38.80889°N 89.99278°W﻿ / 38.80889; -89.99278 |
| Garfield Park Conservatory | | Chicago | 41°53′11″N 87°43′2″W﻿ / ﻿41.88639°N 87.71722°W﻿ / 41.88639; -87.71722 |
| Hazel Crest Openlands | | Hazel Crest | 41°34′45.15″N 87°40′44.59″W﻿ / ﻿41.5792083°N 87.6790528°W﻿ / 41.5792083; -87.6790528 |
| Heritage Gardens | Midway Village Museum | Rockford | 42°16′47″N 88°59′10″W﻿ / ﻿42.27972°N 88.98611°W﻿ / 42.27972; -88.98611 |
| Kaskaskia College Arboretum | Kaskaskia College | Centralia | 38°33′45″N 89°11′34″W﻿ / ﻿38.56250°N 89.19278°W﻿ / 38.56250; -89.19278 |
| Illinois Central College Arboretum | Illinois Central College | East Peoria | 40°42′37.11″N 89°30′59.45″W﻿ / ﻿40.7103083°N 89.5165139°W﻿ / 40.7103083; -89.5165139 |
| Illinois Wesleyan University Arboretum | Illinois Wesleyan University | Bloomington | 40°29′24.72″N 88°59′38.2″W﻿ / ﻿40.4902000°N 88.993944°W﻿ / 40.4902000; -88.993944 |
| Klehm Arboretum and Botanic Garden | | Rockford | 42°14′40.56″N 89°6′44.64″W﻿ / ﻿42.2446000°N 89.1124000°W﻿ / 42.2446000; -89.1124000 |
| Kuechmann Arboretum | | Lake Zurich | 42°12′18.29″N 88°5′49.52″W﻿ / ﻿42.2050806°N 88.0970889°W﻿ / 42.2050806; -88.0970889 |
| La Paloma Gardens | | Rockford | 42°17′36.0″N 89°02′06.6″W﻿ / ﻿42.293333°N 89.035167°W﻿ / 42.293333; -89.035167 |
| Ladd Arboretum | | Evanston | 42°3′24.48″N 87°42′2.16″W﻿ / ﻿42.0568000°N 87.7006000°W﻿ / 42.0568000; -87.7006000 |
| Lewis and Clark Community College | Lewis and Clark Community College | Godfrey | 38°56′58.53″N 90°11′26.21″W﻿ / ﻿38.9495917°N 90.1906139°W﻿ / 38.9495917; -90.1906139 |
| Lilacia Park | | Lombard | 41°53′6.72″N 88°1′13.8″W﻿ / ﻿41.8852000°N 88.020500°W﻿ / 41.8852000; -88.020500 |
| Abraham Lincoln Memorial Garden | | Springfield | 39°41′50″N 89°35′50″W﻿ / ﻿39.69722°N 89.59722°W﻿ / 39.69722; -89.59722 |
| Lincoln Park Conservatory | | Chicago | 41°55′26.4″N 87°38′7.08″W﻿ / ﻿41.924000°N 87.6353000°W﻿ / 41.924000; -87.6353000 |
| Longview Park Conservatory and Gardens | | Rock Island | 41°29′42.36″N 90°34′27.48″W﻿ / ﻿41.4951000°N 90.5743000°W﻿ / 41.4951000; -90.5743000 |
| George L. Luthy Memorial Botanical Garden | | Peoria | 40°43′3.36″N 89°34′30.36″W﻿ / ﻿40.7176000°N 89.5751000°W﻿ / 40.7176000; -89.5751000 |
| Mabery Gelvin Botanical Garden | | Mahomet | 40°12′13.68″N 88°23′39.48″W﻿ / ﻿40.2038000°N 88.3943000°W﻿ / 40.2038000; -88.3943000 |
| Marberry Arboretum | Southern Illinois University | Carbondale | 37°41′57.2″N 89°12′35.3″W﻿ / ﻿37.699222°N 89.209806°W﻿ / 37.699222; -89.209806 |
| Moraine Valley Community College | Moraine Valley Community College | Palos Hills | 41°41′30.29″N 87°50′11.9″W﻿ / ﻿41.6917472°N 87.836639°W﻿ / 41.6917472; -87.836639 |
| Morton Arboretum | | Lisle | 41°48′58″N 88°04′13″W﻿ / ﻿41.81611°N 88.07028°W﻿ / 41.81611; -88.07028 |
| Nicholas Conservatory & Gardens | | Rockford | 42°16′55.3″N 89°04′17.4″W﻿ / ﻿42.282028°N 89.071500°W﻿ / 42.282028; -89.071500 |
| North Central College | North Central College | Naperville | 41°46′23.63″N 88°8′33.51″W﻿ / ﻿41.7732306°N 88.1426417°W﻿ / 41.7732306; -88.1426417 |
| Oak Park Conservatory | | Oak Park | 41°52′17″N 87°47′22″W﻿ / ﻿41.87139°N 87.78944°W﻿ / 41.87139; -87.78944 |
| Don Opel Arboretum | Highland Community College | Freeport | 42°16′58.08″N 89°40′23.88″W﻿ / ﻿42.2828000°N 89.6733000°W﻿ / 42.2828000; -89.6733000 |
| Proksa Park | | Berwyn | 41°50′14.3″N 87°47′55.12″W﻿ / ﻿41.837306°N 87.7986444°W﻿ / 41.837306; -87.7986444 |
| Quad City Botanical Center | | Rock Island | 41°30′35.28″N 90°33′51.12″W﻿ / ﻿41.5098000°N 90.5642000°W﻿ / 41.5098000; -90.5642000 |
| Sinnissippi Gardens | | Rockford | 42°17′02.5″N 89°04′04.4″W﻿ / ﻿42.284028°N 89.067889°W﻿ / 42.284028; -89.067889 |
| Standish Park Arboretum | | Galesburg | 40°56′42″N 90°22′19″W﻿ / ﻿40.94500°N 90.37194°W﻿ / 40.94500; -90.37194 |
| Starhill Forest Arboretum | | Petersburg | 39°56′6″N 89°48′6″W﻿ / ﻿39.93500°N 89.80167°W﻿ / 39.93500; -89.80167 |
| Timothy Christian Schools Arboretum | | Elmhurst | 41°52′1.4″N 87°56′33.34″W﻿ / ﻿41.867056°N 87.9425944°W﻿ / 41.867056; -87.9425944 |
| Tinker Swiss Cottage and Gardens | | Rockford | 42°15′55″N 89°6′7″W﻿ / ﻿42.26528°N 89.10194°W﻿ / 42.26528; -89.10194 |
| University of Chicago Botanic Garden | University of Chicago | Chicago | 41°47′22.5″N 87°35′58.7″W﻿ / ﻿41.789583°N 87.599639°W﻿ / 41.789583; -87.599639 |
| University of Illinois Arboretum | University of Illinois | Urbana | 40°5′38.04″N 88°13′1.2″W﻿ / ﻿40.0939000°N 88.217000°W﻿ / 40.0939000; -88.217000 |
| University of Illinois Conservatory and Plant Collection | University of Illinois | Urbana | 40°6′8.64″N 88°13′21″W﻿ / ﻿40.1024000°N 88.22250°W﻿ / 40.1024000; -88.22250 |
| Village of Homewood Arboretum | | Homewood | 41°33′46.54″N 87°39′56.96″W﻿ / ﻿41.5629278°N 87.6658222°W﻿ / 41.5629278; -87.6658222 |
| Village of River Forest | | River Forest | 41°53′15.13″N 87°49′12.43″W﻿ / ﻿41.8875361°N 87.8201194°W﻿ / 41.8875361; -87.8201194 |
| Washington Park | | Springfield | 39°46′58.8″N 89°39′0″W﻿ / ﻿39.783000°N 89.65000°W﻿ / 39.783000; -89.65000 |
| Western Illinois School of Agriculture Greenhouse | Western Illinois University | Macomb | 40°28′34.48″N 90°41′11.91″W﻿ / ﻿40.4762444°N 90.6866417°W﻿ / 40.4762444; -90.6866417 |
| Wilder Park Conservatory | | Elmhurst | 41°53′41.28″N 87°56′38.4″W﻿ / ﻿41.8948000°N 87.944000°W﻿ / 41.8948000; -87.944000 |