Prins Claus has large white flowers which are blotched with blue and sprinkled pale blue inside. These crocus are some of the earliest bulbs to flower and as such they welcome in the spring after those long winter days. Plant in soil that is well drained. Specie crocus will naturalise really well and can be grown in most soils that are free draining. They are happy in full sun or semi shade in the borders, rockeries, under trees and shrubs and also superb in containers. Crocus like all bulbs need to be fed so if the soil is not fertile enough use bone meal or similar to feed during the leaf and flower stage.