Trees and Shrubs - Features FAQs answered by the North Dakota State University. Pete's Hydrangeas - A place for hydrangea enthusiasts. Information about propagation, growing, drying, encouraging blossoms, and a forum. 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. Mountain Valley Growers: Laurus nobilis - Online source offers extensive information on cultivation, history, and characteristics of this shrub, with links to other resources. Spring Shrub Color - Descriptions of spring blooming shrubs organized by height. Links to summer, fall and winter shrubs.