Coral Tree (Erythrina caffra) - How to Grow & Care Guide

Plant Snapshot

Common Name: Coral Tree
Latin Name: Erythrina caffra
Hardiness Zones: USDA 9–11 (tender, light frost may cause dieback)
Typical Height: 15–30 ft (4.5–9 m)
Typical Spread: 15–30 ft (4.5–9 m) canopy spread typical
Bloom Period: Spring to early summer in many climates
Soil Preferences: Well drained soils ideal. Tolerates sandy and poorer coastal soils. Avoid waterlogged, poorly drained sites.
Light Preferences: Full sun to light afternoon shade. Best flowering in full sun.
Toxicity: Seeds and other parts contain alkaloids and are considered poisonous. Keep away from children and pets.
Propagation: Propagate by seed or by cuttings. Seeds often need scarification. Semi ripe or hardwood cuttings can root.

Key Facts

Native to southeastern and coastal regions of southern Africa
Small to medium deciduous tree with thorny branches
Produces showy coral red pea shaped flowers that attract birds
Member of the pea family and forms nitrogen fixing root nodules
Commonly planted as an ornamental and shade tree in warm climates
Prefers well drained soils and tolerates sandy and coastal conditions
Propagated from seed or from cuttings
Seeds and other plant parts contain alkaloids and are considered poisonous

Coral Tree (Erythrina caffra) is a small to medium deciduous ornamental prized for its showy coral red, pea shaped flowers and bird attraction. Native to southeastern and coastal regions of southern Africa, it is used as a shade tree in warm climates but is frost sensitive so placement and protection matter.

Identification

Coral Tree has thorny branches and a rounded canopy that typically reaches about 15 to 30 feet tall and wide. Flowers are conspicuous coral red and pea shaped, produced before or as the tree leafs out in the warmer part of the year. It is a member of the pea family that forms nitrogen fixing root nodules.

Best uses and where to grow

Use Coral Tree as a specimen, small shade tree or focal planting in warm region landscapes where frost is rare. It performs well in coastal and sandy sites that drain freely and makes an attractive tree for parks and large yards. Avoid planting where winter frosts are frequent without protection.

Planting and spacing

Plant at the same depth as the nursery container and give space for a mature canopy roughly 15 to 30 feet across. In cooler climates set out trees during the frost free part of the year to reduce winter damage. Mulch the root zone to conserve moisture but keep mulch clear of the trunk to prevent rot.

Soil, light and watering

Coral Tree prefers well drained soils and tolerates sandy, poorer coastal conditions. It performs best in full sun for strongest flowering though light afternoon shade is acceptable. Avoid waterlogged sites because poor drainage increases root rot risk and reduces vigor; persistent overwatering leads to yellowing foliage and decline.

Flowering and seasonal care

Flowering generally occurs in spring to early summer in many climates, producing a dramatic floral display that attracts birds. After the main bloom remove dead or broken wood and prune lightly to maintain shape. In regions with light frost expect winter dieback and remove damaged branches in late winter or early spring.

Pruning and management

Prune to shape after flowering and remove crossing or damaged branches. Thorns and a spreading habit can be managed with routine shaping. In areas colder than USDA zones 9 to 11 expect aboveground dieback in severe cold and plan for replacement or protective measures in winter months.

Propagation

Propagate Coral Tree from seed or from cuttings. Seeds commonly need scarification to improve germination. Semi ripe or hardwood cuttings are also used and can root when taken at appropriate times. Local botanic garden or extension guidance will help refine timing and techniques for your area.

Toxicity and safety

Seeds and other plant parts contain alkaloids and are considered poisonous. Keep seeds and fallen pods away from children and pets and consult regional poison control or a veterinarian for specific risk and symptom information. Handle cut branches and thorns with gloves to avoid injury.

Frequently asked questions

How fast does Coral Tree grow?: Growth rate varies with soil, climate and care. In warm, favorable conditions it can be fairly fast growing and reach the small to medium mature size of about 15 to 30 feet over several years.
What USDA hardiness zones suit Coral Tree?: Coral Tree is generally grown in USDA zones 9 to 11. It is frost sensitive so expect winter dieback or need frost protection in cooler areas.
When does Coral Tree bloom?: Blooming typically happens in spring to early summer in many climates. Exact timing shifts with hemisphere and local climate so flowering may vary where you live.
Can Coral Tree tolerate coastal conditions?: Yes. It tolerates sandy and coastal soils when they are well drained and is commonly planted in warmer coastal locations.
Is Coral Tree poisonous?: Yes. Seeds and other tissues contain toxic alkaloids. Keep plant parts away from children and pets and check with regional poison control for details.