The Morton Arboretum is a leading source of science-based advice about trees, plants and landscapes. On this website, gardeners, landscapers, and green industry professionals can find a wide array of help, information and inspiration.
The trained staff and volunteers of The Morton Arboretum's Plant Clinic answer tree, plant, and gardening questions; identify plants; offer identification and advice on pests, diseases, and other problems; and help with selecting trees and shrubs. LEARN MORE
Tree selection and planting advice
The Morton Arboretum has developed two companion publications to provide current, scientifically based tree selection and planting advice. Selecting and Planting Trees (PDF) is the result of decades of research to consider when planting a tree, including planting site characteristics, purchasing a quality tree, planting the tree, and maintaining a newly planted tree. The Northern Illinois Tree Species List (PDF) describes species that grow well in the area and recommends best planting sites. This list emphasizes the importance of site characteristics and is a tool for broadening the diversity of our regional forest to promote resiliency.
From mulching and pruning to watering and weeding, get tips on what you need to do for trees, plants, and gardens that thrive. LEARN MORE
Help with diseases
Gain insight into common tree and plant diseases that ravage homeowners and communities alike. Details include options for prevention and treament. LEARN MORE
Help with pests
Get the details on common tree and plant pests that infest gardens, landscapes, and parkways. Details include ideas for prevention and treatment. LEARN MORE
Plant Health Care Report
Get the scoop on what's in bloom, active pests and diseases, growing degree days, weather data, and more from the experts at the Arboretum's Plant Clinic. This downloadable publication is the scouting report of The Morton Arboretum. LEARN MORE
Northern Illinois Tree Selector
If you are looking for a tree that will thrive in your northern Illinois planting site, use the Tree Selector search. Enter the location, site conditions and preferences for options suggested by experts at The Morton Arboretum. A printable list will give you side-by-side comparisons for choosing the best tree for your circumstances. LEARN MORE
Bartlett Tree Experts, Presenting Sponsor of the Plant Clinic.