PlantFun
Plant Needs
Sunlight
Thrives in full sun for optimal blooming; tolerates partial shade in extremely hot climates
Watering
Water deeply when the top 5–10 cm of soil is dry; avoid overwatering to prevent root rot
Temperature
Tolerates mild frost down to 5°C; prefers warm subtropical to tropical temperatures for consistent growth
Characteristics
- Leaf: Trifoliate leaves with spiny petioles; ovate leaflets with pointed tips and smooth margins
- Flower: Dense clusters of bright scarlet, pea-like blooms with curved, claw-shaped petals
- Stem/Bark: Grey-brown, thorny bark with prominent sharp spines on young branches
Care Guide
Watering
Keep soil consistently moist during active growth periods
Fertilization
Apply a balanced slow-release fertilizer once at the start of growing season. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over blooms
Banana peel compost tea：Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 with water, and apply as a root drench to promote flower productionPruning
- Remove dead, diseased, or damaged branches in late winter before new growth emerges
- Trim overgrown branches to maintain a manageable canopy shape and improve air circulation
- Remove spent flower clusters to encourage potential reblooming and reduce seed production
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic due to erythrina alkaloids; ingestion can cause severe gastrointestinal upset, lethargy, and tremors
Humans: Ingestion of plant parts may cause nausea, vomiting, and abdominal discomfort due to erythrina alkaloids
Garden Uses & Culture
Culture: Symbolizes passion and tropical vitality in South American traditional folklore
Usage: Ornamental shade tree for gardens; nectar source for hummingbirds and pollinators
