Associations
American Hydrangea Society, Azalea Society of America, Holly Society of America, Inc., International Oleander Society, The American Boxwood Society
Lilacs
Growing Lilacs, Homage to Lilacs, Lilac Renewal, Lilacs- Gardener's Net, Lilacs: Praise for a Modest Shrub, Purple Lilacs: Fragrant Favorites of New Hampshire, Questions On Lilacs, Select Plus International Nursery: Lilac Care and
Rhododendrons
Associations, Ask Paul About Rhododendrons, Azalea Works Home Page, Azalea-info.com, Don Hyatt's Garden Center, Downs' Rhododendrons, Georgia Native Azalea - Home and Garden, Azaleas, , Henning's Rhododendron & Azalea Pages, Leonardslee Plants, Loder Plants, Rhododendrons and Their Relatives in Atlantic Cana
Roses
Associations, Chats and Forums, Exhibiting, FAQs, Help, and Tutorials, Finding and Selecting Roses, Hardy Roses, Hybridizing, Lore and History, Personal Pages, Public Gardens
All About Hydrangeas
Enthusiast shares photographs and information about classification, culture, propagation, and pruning.
ColorChoice
A brand applied to cultivated varieties of flowering shrubs. Photos and descriptions of recent introductions, care information, and sources.
Gardens Galore
Information on the cultivation and pruning of woody plants in the weather conditions of County Cork, Ireland. Also listings and reviews of gardens open to the public in Cork.
Hairy Manzanita
Information on a Pacific Northwest shrub, Arctostaphylos columbiana.
List of Shrubs for Problem Identification
Illustrated answers to problems with shrubs.
Mountain Valley Growers: Laurus nobilis
Online source offers extensive information on cultivation, history, and characteristics of this shrub, with links to other resources.
Pete's Hydrangeas
A place for hydrangea enthusiasts. Information about propagation, growing, drying, encouraging blossoms, and a forum.
Spring Shrub Color
Descriptions of spring blooming shrubs organized by height. Links to summer, fall and winter shrubs.
Trees and Shrubs
Features FAQs answered by the North Dakota State University.
Trees and Shrubs
Articles dealing with various topics about trees and shrubs.