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Loughmiller, Campbell and Lynn
Erythrina herbacea L.
Coralbean, Cherokee bean, Red cardinal
USDA Symbol: erhe4
USDA Native Status: Native to U.S.
Coralbean is a low, glossy-leaved, thorny shrub to 6 ft. with many herbaceous, annual stems arising from the woody lower stem and perennial root. The long-petioled, leaflets are distinctively arrowhead-shaped. Leaves are alternate, scattered along the stem, 3 leaflets forming the leaf, which is often prickly beneath. The leaves are 3–5 inches long and 3 1/2–4 inches wide. Leaves fall in winter and before they reappear in spring, upright spikes of showy, tubular flowers adorn the bare branches. The scarlet-red flowers, 12 inches long in spike-like clusters, on the upper portion of the stem. There are 5 united sepals and 5 petals 1 1/2–2 inches long, with the upper petal wrapped around the other 4. These are followed by a persisent legume pod containing several bright red beans. The pod is blackish, constricted between the seeds, and up to 8 1/2 inches long. The seeds are firmly attached to the pod by a sturdy 1/8-inch-long thread and will remain in place for months.
This unusual tropical tree extends its range northward as a shrub or perennial herb, but is killed back to the ground each winter. Planted for the showy flowers and seeds, although the brittle branches are subject to damage by windstorms. In Mexico, the toxic seeds have been used for poisoning rats and fish. Although novelties and necklaces can be made from the seeds, they should be kept away from children.
Bloom InformationBloom Color: Red
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov
AL , AR , FL , GA , LA , MS , NC , SC , TX Native Distribution:
Coastal plain from s.e. NC to TX Native Habitat:
From North Central to South Texas and ranges to coastal states along the Gulf of Mexico. Well-drained sand, loam, clay. Open, sandy woods & clearings of the coastal plains USDA Native Status: L48(N)
Growing ConditionsWater Use:
Medium Light Requirement:
Sun , Part Shade Soil Moisture:
Dry Cold Tolerant:
Sandy soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Acid-based, Calcareous Conditions Comments:
Coralbean is opulent with scarlet blooms that resemble numerous crescent moons. Trim dead stem
tips after new growth emerges in spring when frost damage becomes evident. Be careful of spines on the stems. The top often freezes back in winter but return with vigor in the spring from underground, tuberous root stumps. The seed pods split open to reveal bright red seeds, providing visual interest long after flowering. The seeds are highly toxic if ingested.
BenefitUse Ornamental: Attractive, Blooms ornamental, Fruits ornamental
Use Wildlife: Nectar-hummingbirds
Warning: Seeds are poisonous to humans if eaten. Sensitivity to a toxin varies with a person’s age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plant’s different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.
Conspicuous Flowers: yes
Interesting Foliage: yes
PropagationPropagation Material: Seeds
Description: Very easily propagated from scarified seed, semi-hardwood cuttings and root division.
Seed Collection: Collect seeds in late summer through early fall. Fumigate and store in sealed containers at room temperature.
Seed Treatment: Scarification
Commercially Avail: yes
Mr. Smarty Plants says
Shrub for part shade for hedge in Holly Ridge NC
April 07, 2010
We live in Coastal NC. We would like a type of shrub for the front of our home which is partial shade, similar style to a boxwood or trainable hedge. What NC native would compare?
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Evergreen native shrubs for poor drainage area in Cedar Hill, TX
March 21, 2008
Hi! I have one (big!) bed in on the front of my house. Due to the way the house/motorcourt is built, that area (when it rains as much as it did last year!) doesn't drain well. I now have to replac...
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Wildflower Center Seed BankLBJWC-1209
Collected 2012-09-28 in Nueces County by Lady Bird Johnson Wildflower Center
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Record Modified: 2008-10-31
Research By: TWC Staff