Boxwood Tours: Scheduled and custom garden tours offered. Request a brochure, or order on-line.
British Tours Ltd.: Long-established London-based operator of personal guided tours of Britain, many of which take in gardens; site details a wide variety of options, ranging from day-trips out of London to 14-day tours on different themes.
Copper Beech Garden Tours: Tours in England, Scotland, Ireland, France, Holland and Europe emphasising design, history and horticulture for gardening enthusiasts. South Carolina, USA.
Flora Garden Tours: Visit botanical, historical and heritage gardens on guided tours organised by Cambridge-based specialists.
Gardens Scotland: Tour the gardens of northern Scotland with a professional gardener, plantsman and designer.
Lucas and Randall: 'Gardens of Europe' tours including several UK itineraries, timed to coincide with peak flowering periods. California, USA.
Sisley Garden Tours: Information about tours of gardens in England, Scotland, Wales, France and the Netherlands, and about gardening in general.