Complete Gardens - Interactive Plant Care, Plant Finder, Gardening CD-ROM.
Deeproot Plant Base - Plant reference database for PCs. Simple to use, flexible and fully updatable. UK written.
Garden Composer - Garden design and plant information software.
Plotcrop - Graphics based planning and record keeping software for fruit and vegetable growers on a garden or allotment scale.
ProAsset - Take total control of your garden contracts with ProAsset's garden maintenance manager software (as seen at RHS Tatton/BBC1).
The Garden Management System - Helps gardeners keep track of their plants' characteristics and requirements, store multiple photos, and maintain a gardening journal.
The Vegetable Gardeners Almanac - Software to help you plan, record and manage everything in your veg garden.