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Swamp-lily, Seven-sisters, String-lily
Crinum americanum

Copyright by: Keith A. Bradley

General Landscape Uses: Water gardens and along pond and lake edges.

Ecological Restoration Notes: A common understory element of freshwater marshes.

Availability: Widely cultivated.

Description: Medium herbaceous wildflower from a basal rosette. Leaves strap-like, leathery, 1-4 feet long.

Dimensions: Typically 2-3 feet in height. About as broad as tall, the flowers emerging taller.

Growth Rate: Moderate.

Range: Southeastern United States west to Texas and south to Miami-Dade County and the Monroe County mainland; West Indies (Cuba, Jamaica).

Map of select IRC data from peninsular Florida.

Habitats: Marshes and swamps.

Soils: Wet to moist, seasonally inundated organic soils.

Nutritional Requirements: High; requires rich organic soils for optimal growth.

Salt Water Tolerance: Low; does not tolerate long-term flooding by salt or brackish water.

Salt Wind Tolerance: Moderate; grows near salt water, but is protected from direct salt spray by other vegetation.

Drought Tolerance: Low; requires moist to wet soils and is intolerant of long periods of drought.

Light Requirements: Full sun to light shade or moderate shade.

Flower Color: White.

Flower Characteristics: Showy. Fragrant.

Flowering Season: Spring-fall.

Fruit: Green fleshy capsule.

Horticultural Notes: Can be grown from seed and division.

Comments: Luber grasshoppers chew the leaves.

Copyright by: Keith A. Bradley

Copyright by: James Johnson, 2012
In habitat, Big Cypress National Preserve, Florida

Copyright by: Shirley Denton

Copyright by: James Johnson, 2014
In habitat, Everglades National Park, Florida

Copyright by: Shirley Denton

Copyright by: Roger L. Hammer

Other data on Crinum americanum available from:

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