Botanical Institutions and Charities
- University of Bristol Botanic Garden
- The Royal Botanic Gardens Kew
- Kirstenbosch Botanic Gardens
- Plant Heritage
- Treborth Botanic Garden
- The National Botanic Garden of Wales
- University of Reading Herbarium
- Botanic Gardens Conservation International
Nurseries
- Crug Farm Plants
- Cotswold Garden Flowers
- Cycad International
- Hardy Exotics Nursery
- Lower Kenneggy Nursery
- Trewidden Nursery
Societies
- Australasian Plant Society
- Institute of Horticulture
- Royal Horticultural Society
- British Pteridological Society
- British Iris Society
- The Linnean Society
Gardens
- Lullingstone World Garden
- Bodnant Garden
- Tremenheere Sculpture Gardens
- Inverewe Garden
- Bedgebury Pinetum
- Abbotsbury Subtropical Gardens
- Trewidden Garden
- Minack Theatre