As gardeners, we encourage new growth — whether it is a plant or the seed of knowledge.

To help each other out, here are resources to we often refer to when we want to learn more. If you have one you would like to share, please share it with us!

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Frequently consulted Sites

Chicago Botanic Gardens

University of Illinois Master Gardener Facebook Page

The Morton Arboretum

Garfield Park Conservatory

Missouri Botanic Gardens

Extension Sites

U of IL Extension 

Illinois Master Gardeners 

Wisconsin Extension

General Horticulture

U of I Horticulture Corner 

Ask an Expert

Plants for Wet Sites

Penn State Extension

Gardenweb Forums  

Horticulture Links 

North Carolina State Extension Horticulture

USDA Hardiness Zone Map www.usna.usda.gov/Hardzone

Plant Databases

Illinois Best Plants 

Perennial Plant Association

Ohio State Plant Facts 

Upper Midwest Plants 

UI Plants: Woody Ornamentals 

National Plant Database 

VA Tech: Woody Plant Key 

Houseplants

Houseplant Pests  

Purdue Houseplant Problems 

Guide to Houseplants  

Carnivorous Plant Society 

Weeds

Rutgers Weed Images www.rce.rutgers.edu/weeds/default.asp

Garden Country Weeds www.gardencountry.com/pages/weeds/weedchart.html

Lawn

U of I Lawn Talk 

Insects/Diseases

Illinois Integrated Pest Mgmt.  

Focus on Plant Diseases 

U of I Bug Review 

Iowa State Entomology 

Newsletters

Home, Yard & Garden Pest 

Morton Plant Health Report  

Poisonous Plant Databases

FDA Poisonous Plant Database 

Colorado University Poisonous Plants 

Plants Poisonous to Animals  

Prairie

Tallgrass Prairie in Illinois 

Gardening for Kids

Kids Gardening

U of I: Great Plant Escape 

Catalog

Cyndi’s Garden Catalogs List 
 

Arborists

National Arborist Association 

International Society of Arboriculture

Search Engine

Google

Helpful Tips ? To search for pictures of plants on Google, click the images tab and then type the name of the plant. To confine a search to addresses from universities or organizations, add site:.org to the search.