Southern Swamp Lily Crinum americanum
Other Common Name(s):
Other plants called Southern Swamp Lily:
Previously known as:
- Bulbine uncinata
- Crinum americanum var. traubii
- Crinum floridanum
- Crinum longiflorum
- Crinum strictum var. traubii
- Phonetic Spelling
- KRY-num a-mer-ih-KAY-num
- This plant has low severity poison characteristics.
- See below
- Description
-
Southern swamp lily is a herbaceous perennial bulb in the onion family (Amaryllidaceae), found in wetlands, swamps, marshes, and stream banks from South Carolina to Florida and west to the Gulf coast of Texas. It is an erect plant, growing up to 2 to 3 feet tall, and forms small clumps. Its leaves grow directly from the bulb and are narrow, green, strap-like. The flowers bloom from June to September, and are delicate, fragrant, white, and lily-like with a blush of pink. Two to six trumpet-shaped flowers form into a showy umbel at the top of the distinctively reddish stem. The genus name, Crinum, originates from the Greek word krinon, meaning lily. The specific epithet, americanum, refers to its native habitat.
Prefers full sun to partial shade and rich, wet, slightly acidic soils of sand, loam, or clay. Although it is native to wet sites, it will grow in moist garden environments or in containers kept moist to wet. Only use a pot 2 inches larger than the bulb. If growing in the garden, mulch heavily in the winter. Otherwise, it can be grown in water gardens or along streams, ponds, or bogs. Do not disturb the bulbs once planted, or it may take up to 2 to 3 years before it blooms again. Propagated by division or seeds. Divided plants will bloom more quickly than offshoot bulbs.
Each bulb is thick and fleshy, measuring 3 to 4 inches in diameter, and has a tapered neck. The flowers have sepals, measuring 3 to 4 inches long, joined at the base to form a long tube. The sepals curve backward to form a somewhat ball-like form. The purple stamens and anthers extend outward from the blossom. The blooms attract hummingbirds, bees, butterflies, and moths.
Consider for use as a border, foundation planting in moist to wet areas of your landscape. They may also be grown in containers for the patio. Ideal for water gardens or bogs. Provides a good cutting flower for floral arrangements.
Insects, Diseases, and Other Plant Problems: Monitor for mealybugs, spider mites, nematodes, slugs, and snails. Grasshoppers are known to chew on the plant's leaves. Potential diseases include red blotch fungus and crinum mosaic potyvirus. Leaf scorch may occur.
- See this plant in the following landscape :
- Water Garden at David Caldwell Historic Park
- Cultivars / Varieties:
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- 'St. Marks'
up to 20 inches tall, hardy 7a to 10b, glossy, dark green foliage, fragrant, white flowers
- 'St. Marks'
- 'St. Marks'
- Tags:
- Cultivars / Varieties:
-
- 'St. Marks'
up to 20 inches tall, hardy 7a to 10b, glossy, dark green foliage, fragrant, white flowers
- 'St. Marks'
- 'St. Marks'
- Tags:
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Attributes:
- Genus:
- Crinum
- Species:
- americanum
- Family:
- Amaryllidaceae
- Life Cycle:
- Bulb
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- Southeastern United States to Mexico and the West Caribbean
- Distribution:
- Native: United States--Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Texas; Cayman Islands, Jamaica, Mexico Central, Mexico Gulf, Mexico Southeast, and Mexico Southwest. Introduced: Cuba
- Wildlife Value:
- Submerged portions provide habitats for many micro and macroinvertebrates. These invertebrates, in turn, are used as food by fish and other wildlife (e.g., amphibians, reptiles, ducks, etc.). After aquatic plants die, their decomposition by bacteria and fungi provides food (called “detritus”) for many aquatic invertebrates. Attracts moths at night with increased fragrance. It also attracts hummingbirds, bees and butterflies. Pollinated by sphinx moths. Larval host of the Spanish moth.
- Dimensions:
- Height: 2 ft. 0 in. - 3 ft. 0 in.
- Width: 1 ft. 0 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Bulb
- Herbaceous Perennial
- Poisonous
- Water Plant
- Habit/Form:
- Clumping
- Erect
- Growth Rate:
- Rapid
- Maintenance:
- Low
- Texture:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- High Organic Matter
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Frequent Standing Water
- Moist
- Occasionally Wet
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Coastal
- USDA Plant Hardiness Zone:
- 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Brown/Copper
- Green
- Display/Harvest Time:
- Fall
- Summer
- Fruit Type:
- Capsule
- Fruit Length:
- 1-3 inches
- Fruit Width:
- 1-3 inches
- Fruit Description:
- The fruit is a green capsule initially and turns brown as it ripens. It is round, smooth, firm, measuring 1 to 2 inches in diameter, with large, fleshy seeds. Each seed pod contains 4 to 5 seeds.
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Flowers:
- Flower Color:
- Pink
- White
- Flower Inflorescence:
- Umbel
- Flower Value To Gardener:
- Fragrant
- Good Cut
- Long Bloom Season
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Trumpet
- Flower Petals:
- Colored Sepals
- Flower Size:
- 3-6 inches
- Flower Description:
- Large lily-like flowers are up to 4 inches across and long, and appear in umbels of 2 to 6. They have long, narrow sepals, measuring 0.5 inches wide, that curve backwards. The sepals measure 3 to 4 inches long and join at the base to form a long tube. They are white with a blush of pink, and the long purple stamens and anthers extend outward beyond the sepals. Blooms from June to September.
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Leaves:
- Leaf Color:
- Green
- Leaf Feel:
- Glossy
- Leathery
- Leaf Type:
- Simple
- Leaf Shape:
- Lanceolate
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- > 6 inches
- Leaf Width:
- 1-3 inches
- Leaf Description:
- Long green strap-like leaves are 18 inches to 36 inches long, 2 to 3 inches wide, and arise directly from the bulb. Each leaf is simple, linear, with entire margins.
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Stem:
- Stem Color:
- Green
- Red/Burgundy
- Stem Is Aromatic:
- No
- Stem Description:
- The long reddish-green stem is erect, unbranched, smooth, and 1 inch in diameter. It arises directly from the bulb and has no leaves attached.
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Landscape:
- Landscape Location:
- Container
- Patio
- Pond
- Riparian
- Landscape Theme:
- Cutting Garden
- Rain Garden
- Water Garden
- Design Feature:
- Accent
- Mass Planting
- Small groups
- Specimen
- Attracts:
- Bees
- Butterflies
- Frogs
- Hummingbirds
- Moths
- Pollinators
- Songbirds
- Resistance To Challenges:
- Deer
- Rabbits
- Wet Soil
- Problems:
- Poisonous to Humans
- Problem for Cats
- Problem for Children
- Problem for Dogs
