Erythrina bidwillii
Erythrina bidwillii · Fabaceae
⚠️ Erythrina : graines très toxiques (alcaloïdes érythriniques), dangereux à l'ingestion pour chiens, chats et enfants ; risque de troubles neurologiques graves.
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around erythrina bidwillii and prepare for winter.
ID card
- Family
- Fabaceae
- Form
- Shrub
- Adult size
- Approximately 2 meters in height
- Flowering
- May to August, scarlet red flowers
- Foliage
- Deciduous, compound and elegant
- Hardiness
- Tropical to subtropical climate, frost-tender
- Growth
- Fast growth in warm climates
- Origin
- Australia
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Heat and full sun are essential, well-drained soil required. Mulch lightly in winter from the first year (to protect the crown), then reduce mulch after 3 years.
The common mistake
In cold zones without protection, the crown suffers mainly from wet frost damage.
The pro's trick
Plant it near a sunny border to attract pollinators during the red flowering period.
Care
Light Exposure
Erythrina bidwillii thrives in full sun for generous flowering and a compact shape. Position it in a location receiving at least 6 to 8 hours of direct sunlight daily. In partial shade, fruiting and flowering will be reduced.
Watering
Keep the soil consistently moist during the growing season (spring-summer), without waterlogging. Reduce watering in autumn-winter, particularly if temperatures drop. In hot, dry climates, increase watering frequency to prevent foliage decline.
Soil and Drainage
Choose rich, well-draining soil that is slightly acidic. A substrate enriched with organic matter promotes growth and flowering. Ensure perfect drainage: water stagnation causes root rot.
Fertilization
Apply a balanced fertilizer or one slightly higher in phosphorus and potassium during the growing period (May to September). Monthly applications are sufficient. Reduce or stop feeding in winter if the plant slows its development.
Pruning and Maintenance
Prune lightly after flowering to maintain a bushy shape and encourage branching. Remove dead or damaged branches in early spring. Avoid severe pruning, which reduces the following year's flowering.
Pests and Diseases
In humid climates, watch for scale insects and aphids, particularly in spring. Powdery mildew can appear with excessive humidity and poor air circulation. Ensure good ventilation and avoid watering the foliage.
Did you know?
Erythrina bidwillii, native to Australia, belongs to an ancient genus venerated by several cultures. Its nickname 'coral tree' comes from its spectacular scarlet red flowers that emerge before or alongside the leaves, creating a living coral effect. Be aware: several parts of the plant contain alkaloid compounds and it is toxic to domestic animals.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.