Tree and plant advice

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.


Plant Clinic

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 a publication to provide current, scientifically based tree selection and planting advice. 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.

To learn about a particular tree or shrub, click on  Search Trees and Plants. Use the search and filter functions to find a plant by common or botanical name or to narrow your search. LEARN MORE  

Horticulture care

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

To learn about a particular tree or shrub, consult the Tree and Plant Finder. Use the search and filter functions to find a plant by common or botanical name or to narrow your search. LEARN MORE 



Bartlett Tree Experts, Presenting Sponsor of the Plant Clinic