Summer snowflake is a hardy spring-flowering bulb with white, bell-shaped flowers, grown for its blooms in damp ground. It thrives in moist soil, especially clay, and spreads readily.
Family
Amaryllidaceae (Daffodil & onion family)
Grows as
Bulb
Light
Full sun, Part shade
Water
Keep the soil moist, especially in spring while it grows and flowers.
Soil
Moist, heavy clay or loam; tolerates wet ground.
Temperature
Hardy to cold winters; grows well in temperate climates.
How easy
Easy
Safety
Toxic: All parts, including bulbs, contain the alkaloids lycorine and galantamine, which can cause vomiting and other poisoning symptoms.
Native range
Europe to N. Iran
Climate
temperate
About
Leucojum aestivum, commonly called the summer snowflake, giant snowflake, Loddon lily (see River Loddon § Loddon lily) and rarely snowbell and dewdrop among others, is a plant species widely cultivated as an ornamental. It is native to most of Europe from Spain and Ireland to Ukraine, with the exception of Scandinavia, Russia, Belarus and the Baltic countries. It is also considered native to Turkey, Iran and the Caucasus. It is naturalized in Denmark, South Australia, New South Wales, Nova Scotia and much of the eastern United States.
How to grow it
Leucojum aestivum is cultivated as an ornamental plant for its flowers. It requires a damp position, growing well on clay soils, where it increases rapidly. The cultivar 'Gravetye Giant' is robust, growing to 90 cm (35 in) with up to eight flowers on each scape. It is named after Gravetye Manor, an Elizabethan manor house in West Sussex, England, the former home of the gardener William Robinson. 'Gravetye Giant' has gained the Royal Horticultural Society's Award of Garden Merit. Another cultivar is 'Nancy Lindsay'. Shorter and more compact than 'Gravetye Giant' at 50–60 cm (20–24 in), its flowers, 5–6 per stem, have tepals that are rounder and broader. It originated in a garden in southern France owned by Nancy Lindsay.
Safety
All species of Leucojum are poisonous, as they produce the alkaloids lycorine and galantamine.
Where it grows
Leucojum aestivum is native to most of Europe, with the exception of Scandinavia, Russia, Belarus, and the Baltic Republics, and is also native to Turkey, the Caucasus, and Iran. It is naturalized in other parts of Europe, including Denmark, in South Australia, New South Wales, Nova Scotia, and much of the eastern United States. L. aestivum is found in damp places, such as wet meadows, swamps, and ditches.
Text excerpted from the Wikipedia article Leucojum aestivum 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.