Spring Shrub Color
- Descriptions of spring blooming shrubs organized by height. Links to summer, fall and winter shrubs.
- http://www.rodsgarden.50megs.com/shrspring.htm

List of Shrubs for Problem Identification
- Illustrated answers to problems with shrubs.
- http://web1.msue.msu.edu/msue/imp/shrulist.html

Hydrangeum
- Belgian Hydrangea society presents information about its collection and show garden, plant botany, and several illustrated articles. [Dutch/English]
- http://www.hydrangeum.be/

Mountain Valley Growers: Laurus nobilis
- Online source offers extensive information on cultivation, history, and characteristics of this shrub, with links to other resources.
- http://www.mountainvalleygrowers.com/launobilis.htm

ColorChoice
- A brand applied to cultivated varieties of flowering shrubs. Photos and descriptions of recent introductions, care information, and sources.
- http://www.colorchoiceplants.com/

All About Hydrangeas
- Enthusiast shares photographs and information about classification, culture, propagation, and pruning.
- http://www.hydrangeashydrangeas.com/

Pete's Hydrangeas
- A place for hydrangea enthusiasts. Information about propagation, growing, drying, encouraging blossoms, and a forum.
- http://www.conweb.com/hydrangea/

Trees and Shrubs
- Articles dealing with various topics about trees and shrubs.
- http://gardenline.usask.ca/trees/index.html