Champaign
http://www.arboretum.illinois.edu/
Chicago
https://garfieldconservatory.org/
http://www.hydepark.org/parks/osaka2.htm
https://www.chicagoparkdistrict.com/parks-facilities/lincoln-park-conservatory/
http://www.hydepark.org/parks/washington.htm
https://www.chicagostyleweddings.com/ceremony-receptions/chicago-public-library/
Decatur
https://www.decatur-parks.org/gardens/
https://www.decatur-parks.org/banquets/venues/scovill-garden-house/
DeKalb
Elmhurst
https://en.wikipedia.org/wiki/Wilder_Park_Conservatory
Evanston
Freeport
https://en.wikipedia.org/wiki/Don_Opel_Arboretum
Geneva
http://Fabyan Forest Preserve and Estate
Glencoe
https://www.chicagobotanic.org/
Lisle
Lombard
Mahomet
https://www.ccfpd.org/lake-of-the-woods/mabery-gelvin-botanical-garden
Marion
https://www.mandalagardens.org/
Moline
https://www.butterworthcenter.com/
http://www.friendsofriverside.org/greenhouse.html
Monticello
https://allerton.illinois.edu/
Normal
https://arboretum.illinoisstate.edu/
Oak Park
https://www.pdop.org/facilities-detail-page/?fid=151
Paris
https://www.enjoyillinois.com/explore/listing/vance-park
Peoria
https://peoriaparks.org/venue/luthy-botanical-garden/
Petersburg
http://starhillforest.com/wp1/
Rockford
http://www.midwayvillage.com/heritage-gardens-midway.html
https://nicholasconservatory.com/
https://nicholasconservatory.com/sinnissippi-station/
Rock Island
https://en.wikipedia.org/wiki/Longview_Park_Conservatory_and_Gardens
https://www.pdop.org/facilities-detail-page/?fid=151
Springfield
http://lincolnmemorialgarden.org/
http://www.springfieldparks.org/facilities/botanicalGardens/
Streator
https://www.weberhouseandgarden.com/
Urbana
http://www.life.illinois.edu/plantbio/greenhouse/
Vernon Hills
Wheaton
https://cantigny.org/plan-your-visit/gardens/about-the-gardens/
Wilmette