Floral and Nursery Plants Research Unit, U.S. National Arboretum Information on research activities at several locations, development of new plant varieties, and development of new technologies for agriculture, the florist and nursery industries, and home gardeners. http://www.usna.usda.gov/Research/

Yosef Mizrahi's Homepage. Biological and horticultural aspects of wild and rare fruit and nut trees of warm climates. Biology of cacti. Abnormally-ripening-fruit mutants. http://www.bgu.ac.il/life/mizrahi.html

Sydney Postharvest Laboratory Serving the fresh fruit and vegetable industry, for matters including evaluation of postharvest technologies, storage and handling software, assistance with commercialization, patents, expert testimony, and cargo loss. Located in Sydney, Australia. http://www.postharvest.com.au/

Australian New Crops Project Encouraging the commercialisation of potential new crops (including herbs, spices, and other horticultural crops) in Australia. Includes newsletter and links. http://www.newcrops.uq.edu.au/

Henry Doubleday Research Association. The HDRA researches and promotes organic gardening in the UK. http://www.hdra.org.uk/

The Center for Urban Horticulture Conducts research, teaching, and public service on the selection, management and role of plants and ecosystems in the urban environment. At College of Forest Resources, University of Washington, Seattle. http://depts.washington.edu/urbhort/

Horticulture Research International Association Research for commercial horticultural businesses. UK based body with individual and corporate membership. http://www.hri.ac.uk/hria/index.htm

Horticultural Engineering Contains information about aspects of engineering, including glasshouse construction and energy conservation, from Rutgers University. http://aesop.rutgers.edu/~horteng

Institute of Horticultural Economics German research institute based at Hanover University. http://www.ifgb.uni-hannover.de/index.html.en

Horticulture Resources Information about the horticultural technology with links to the Journal of Applied Horticulture, and horticultural societies. http://www.horticulture-india.com

The Horticultural Taxonomy Group Gives the history of HORTAX, an association of taxonomists and horticulturists interested in the classification and nomenclature of cultivated plants, member information and links to the archives of HORTAX News. http://www.hortax.org.uk/

The American Society for Horticultural Science Promotes and encourages scientific research and education in horticulture within the United States and throughout the world. Publisher of HortScience, HortTechnology, and the Journal of ASHS. http://www.ashs.org/

Horticulture Solutions Series A collection of short notes on a number of horticultural topics. http://www.ag.uiuc.edu/~robsond/solutions/hort.html

Gardenet Online horticultural information service. Australia. http://www.gardenet.com.au

The Geophyte Page Information on herbaceous plants with underground storage organs such as bulbs, corms, and tubers. Oriented primarily towards commercial growers, forcers, and retailers. Production statistics, crop specific guidelines for major geophytic plants such as tulips, daffodils, and lilies. Clemson University. http://virtual.clemson.edu/groups/hort/sctop/geophyte/webpage.htm

Home Horticulture Extensive alphabetized listing of horticultural fact sheets and images. Grouped by type of plant and topic. Michigan State University. http://www.msue.msu.edu/msue/imp/mod03/master03.html

Institute of Vegetables and Ornamental Crops The Institute carries out basic and applied research supporting the sustainable production of vegetable and ornamental plants and the rational use of natural resources. Located approximately 20 km south of Berlin, the Institute was a research center for vegetable crops since 1925. Grossbeeren/Erfurt e.V. (Germany). http://www.igzev.de

Nursery Extension Links and online resources for the nursery industry, from the Clemson University Extension. http://www.clemson.edu/hort/nurseryex.html

NC State Horticulture Teaching, research, and outreach in horticulture, including basic biology, ecology, production and use of horticultural products. http://www.cals.ncsu.edu/hort_sci/

International Society for Horticultural Science Includes general and specific scientific information, links to journals, events calendar. http://www.ishs.org/