summer snowflake USDA PLANTS Symbol: LEAE
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Leucojum aestivum L.

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Taxonomic Rank: Liliopsida: Liliales: Liliaceae

Leucojum aestivum is a perennial herb that can grow from 1-1.5 ft. (0.3-0.5 m) tall.
Leaves are dark green, 12 in. (30.5 cm) long and 1 in. (2.5 cm) wide, and form an upright often vase shaped clump of foliage.
Flowers are white with green tips, nodding, bell shaped, and are found in groups of 2 to 5 at the top of hollow flower scapes that are 12-15 in. (30.5-38.1 cm) tall. Flowering occurs in spring.
This plant can be grown from seed or bulbs. Seeds are round, dark brown to black in color.
Ecological Threat
Leucojum aestivum can be found in marshes, wet meadows, wetlands, and willow thickets. It is native to Europe.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at

Stefan Lefnaer, ,
Additional Resolutions & Image Usage

Kurt Stueber, Max-Planck-Institute for Plant Breeding Research, Cologne,
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit

State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

Invasive Listing Sources:
Jil Swearingen, personal communication, 2009-2016
Jil Swearingen, personal communication, 2009-2016