On a global level, tea is the most popular beverage after water. Information on its history, how and where it is grown and processed, and customs surrounding its use.

Production and postharvest technical information for individual crops.

Describes current research and grants for specialty crops in Colorado with emphasis on organic, small farm, and sustainable agriculture research.

Searchable by common names, alternate names and botanical names.

Details of the center, and of growing crops by protected cultivation.

Database interface that identifies suitable plants for a specified environment, for a defined use, or for a defined description.

Non-profit group providing research grants and scholarships for the bedding plant and cut flower industries. Includes history, requirements and applications, past recipients.

Online horticultural information service. Australia.

Plant information and production information with emphasis on Australia.

The HDRA researches and promotes organic gardening in the UK.

Extensive alphabetized listing of horticultural fact sheets and images. Grouped by type of plant and topic. Michigan State University.

Information, including FAQs and research, on growing hops in eastern United States.

Archive of horticultural information for producers and gardeners from Texas A&M and the Texas Extension Service. Features publications, newsletters, information about specific plants, IPM, and master gardener programs.

Contains information about aspects of engineering, including glasshouse construction and energy conservation, from Rutgers University.

Information about the horticultural technology with links to the Journal of Applied Horticulture, and horticultural societies.