The Crocus collection at Wisley has developed since 1992, from the large collection of bulbous and bulb-like plants that has long been a feature of the Rock Garden and Alpine Houses at Wisley. This collection now exceeds 800 accessions, representing more than 100 species and subspecific taxa, and 96 cultivars, the latter including plantings in other parts of the garden.
As the collection has become very large, a degree of rationalization is being considered. Links are maintained with many other institutions and nurseries, with regular exchanges of material of mutual benefit.
Plants from the collection are displayed in the Alpine House each autumn and spring, creating a fine spectacle for visitors.
The entire collection is catalogued in the RHS Horticultural database. The Surrey group of the NCCPG has assisted in the preparation of specimens for the Herbarium at Wisley, and steady progress is being made in creating a photographic record of the collection.