Crinum americanum L.
American crinum lily, Seven sisters, Swamp lily, Southern swamp lily, String lily, Crinum lily
Liliaceae (Lily Family)
Synonym(s): Crinum floridanum, Crinum strictum, Crinum strictum var. traubii
USDA Symbol: cram2
Swamp lilies are erect plants that grow in small clumps. The leaves grow directly from the bulb and are 2–4 feet long and 2–3 inches wide. The flower stem is about 1 inch in diameter, 2–3 feet tall, with 2–6 flowers forming a showy umber at the top. The fragrant flowers are white, sometimes marked with pink. The sepals are 3–4 inches long and 1/2 inch wide. They are joined at the base, forming a long tube, but curve backward at the end to form a ball-shaped blossom. The upper half of the stamen is purple, with purple anthers extending out from the blossom as the sepals curve backward.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Complexity: Simple
Flower: Flowers 4 inches.
Size Class: 1-3 ft.
Bloom InformationBloom Color: White
Bloom Time: Jun , Jul , Aug , Sep , Oct , Nov
DistributionUSA: AL , AR , FL , GA , LA , MS , NC , SC , TX
Native Distribution: N. FL, w. to s.e. coastal TX
Native Habitat: Freshwater marshes; cypress swamps, ditch & lake edges
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade
Soil Moisture: Wet
Soil Description: Wet, rich soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Acid-based, Calcareous.
Conditions Comments: Not fussy about the amount of sun or shade it gets. Will bloom in deep shade. Freezes back to water level in winter, but greens up again immediately.
BenefitUse Ornamental: Water garden, Bog or pond area, Aromatic, Blooms ornamental
Conspicuous Flowers: yes
National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Sanibel-Captiva Conservation Foundation Native Plant Nursery - Sanibel, FL
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Texas Discovery Gardens - Dallas, TX
Crosby Arboretum - Picayune, MS
BibliographyBibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
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Additional resourcesUSDA: Find Crinum americanum in USDA Plants
FNA: Find Crinum americanum in the Flora of North America (if available)
Google: Search Google for Crinum americanum
MetadataRecord Modified: 2014-07-30
Research By: TWC Staff