HortData – The Plant Database is a specialist horticultural resource designed to help gardeners, students, landscapers, nursery professionals, arborists, field researchers and botanists explore and identify plants. Its searchable library covers plants, including weeds, as well as fungi, moulds, ferns, palms, cacti, succulents, mosses, lichens and liverworts; algae is listed as a forthcoming addition. Users can search by plant characteristics, such as leaves and flowers, or by practical requirements including sun, soil, root conditions, height, width, watering and wind tolerance.

Entries feature professional imagery of whole plants and details such as stems, leaves, flowers, fruit and seeds, supporting identification and selection for gardens, landscapes, streetscapes and commercial or industrial sites. HortData also provides specialist horticultural information, general fact sheets and researched propagation guidance, including species-specific techniques and advice from professional propagators. The database is continually being developed, with a photo-based identification tool described as a future goal.

A subscription unlocks the complete library, while businesses and individuals can support its development through donations, advertising or contributions of plant and propagation information, with subscription or advertising benefits offered in return