National Arborist Association Home Page
The trade association of commercial tree care businesses.

The WVU Tree Bark Home Page
Designed to provide a place to learn about the anatomy and physiology of tree bark, fungal canker diseases that affect tree bark, the wound responses of injured tree bark, and the role of wound responses in the resistance of living tree bark to wound pathogens.

TreeLink
Resource for urban and community forestry: planting and caring for trees in cities and towns. Includes links list, research, news, forums, and educational materials.

Magnolia Society
A worldwide organization of gardeners, nurserymen and other people who are devoted to the appreciation and study of magnolias.

University of Alabama in Huntsville Grounds Management Page
A resource for Southern gardeners who need information on trees that grow well in their area.

The World of Trees
An educational site for young people.

Southern African Trees
A listing of southern african trees with photos, providing general and cultivation information, concentrating on plants suitable as bonsai, potplants or with edible fruit.

Landscape Care Calendar
Monthly guide to tree and shrub care and tips from SavATree.

State and Provincial Trees
A list of official state and provincial trees of all 50 U.S. states and 13 Canadian provinces and territories including both common and scientific names and images of official flags.

Tree Planting
Learn how to properly plant a tree to ensure its survival. Selecting the right tree and site, digging the right hole and ensuring good growing conditions are essential for a healthy start.

Arnold Arboretum
The Arnold Arboretum is a research and educational institution. It manages a collection of hardy trees, shrubs, and vines located in Boston, Massachusetts and associated herbarium and library collections.

How to Grow and Maintain Birch Trees
Learn how to care for a birch tree, including selecting the correct site and type of birch, watering, fertilizing, mulching, and monitoring for problems.

Chicago Urban Tree Care
Chicago Department of Environment's informational site for urban dwellers to properly care for trees.

Palm Tree Care
Information for homeowners about how to care for a palm tree including planting, fertilizing, and dealing with insects and diseases.

All About Trees - American Forests
Describes how and where to plant a tree in a landscape.

Windmill Outback Nursery Eucalyptus & Australia Plants
A mail order nursery specializing in Eucalyptus and native plants of Australia for American gardeners.

Collier Arbor Care
Tree, shrub and turf information, IPM practices, insect and disease articles, tree care information, annual garden calendar.

Central Texas Tree Care
Features information on tree care and contact information.

Florida Chapter of the International Society of Arboriculture
Serving Florida's professional certified arborists and tree care consumers, with a certified arborist directory, consumer information about tree care, and information for anyone involved in caring for Florida's urban and community forests.

How to Plant Trees
Gives information on where to use trees and how to plant them correctly.

Ice Damage On Trees
Heavy accumulations of snow and ice can cause major structural damage to trees and shrubs. The damaged limbs should be properly removed. The following links will provide a guide for homeowners seeking to repair damaged plant material.U.of Illinois

TreeHelp.com
Source of information regarding tree and shrub care including how-to articles, species profiles, insect and disease information and other features.

The Hardiest Palms
Dedicated to growing hardy palms.

Oak Wilt Treatment and Prevention
Specializing in the analysis, prevention and treatment of oak wilt using Alamo fungicide and root trenching. Offers free consultation, cedar clearing, dead tree removal, and replanting services.

CSFS Montrose District - Urban forests
Community forests and urban tree care for western Colorado.

Shigo on Trees
From the trees systems) within the forest. To trees (systems) within the city.

English Oak Trees
Natural history of English Oaks (Quercus robur), their life, conservation and woodland restoration. How to obtain acorns from old oak trees by mail order.

Staking and Guying Trees
Contains information and diagrams.

Deciduous Trees and Shrubs With All-Season Interest
Contains information and pictures.

Better Homes and Gardens: Tree Pictures
A collection of American tree pictures.

American Conifer Society
Features information on trees capable of being used in public areas, home landscapes, and special collections.

The Trees of Reed College
Offers photographs and descriptions for a variety of trees that can be found on the campus of Reed College in Portland, Oregon. Visitors can identify trees by location or find the location of examples of a certain kind of tree.

Tree Stories
Series on public television travels the country looking for historic, unique, memorable, and weird trees.

Acer palmatum - Japanese Maple
Gives cultivars, growing tips, physical characteristics, and growth rate information.

Trees of the Pacific Northwest
An identification guide to conifers of the Pacific Northwest provided by Oregon State University.