http://www.plantpress.com
Publishers of The RHS Plant Finder CD-ROM and professional plant databases on CD and in book form

http://www.ecologycal.com
Software to enable gardeners to maintain records of their own plant collection.

http://www.martinws.dircon.co.uk
A plant and garden database, managing plants, germination info, plant collections and plant inventories. Runs on Window 95/NT or Macintosh

http://users.pandora.be/guy.de.kinder/links/plantendatabases.htm
More then 100 online plantdatabases.

http://www.geocities.com/gdekinder/index_english.htm
Translations of fruit, herbs, veggies and shrubs in the Latin, Dutch, English and French.

http://www.the-garden-uk.net
Online database of garden plants that are grown in the U.K. The website includes a club, forum and art gallery that specialises in garden related subjects.