Dutch crocus (Crocus vernus) is a small spring-flowering bulb from the Alps and Balkans, grown for its large cup-shaped flowers in white, purple and striped forms. The key to success is planting the corms in autumn in well-drained soil in a sunny spot.
Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Full sun, Part shade
Water
Water during dry spells in spring; let the soil dry out between waterings once the foliage has died down.
Soil
Free-draining soil or gritty loam; avoid waterlogged ground.
Temperature
Hardy to about -20 °C; needs a cold winter to flower well.
How easy
Easy
Native range
Alps to W. Balkan Pen.
Climate
temperate
About
Crocus vernus (spring crocus, giant crocus) is a species of flowering plant in the family Iridaceae, native to the Alps, the Pyrenees, and the Balkans. Its cultivars and those of Crocus flavus (Dutch crocus) are used as ornamental plants. The Dutch crocuses are larger than the other cultivated crocus species (e.g., Crocus chrysanthus). Depending on the year, Crocus vernus starts flowering about the same time or up to 2 weeks after Crocus chrysanthus (snow crocus) starts flowering. Height: 4–6 inches (10–15 cm).
Where it grows
Within Britain, it can be found in grasslands, including churchyards and roadside verges.
Text excerpted from the Wikipedia article Crocus vernus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.