Poinciana (Caesalpinia gilliesii) is a striking evergreen to semi-deciduous shrub native to subtropical Argentina and Uruguay that brings tropical flair to warm-climate gardens. Hardy in zones 8-11, it grows 7 to 10 feet tall and equally wide, producing showy clusters of bright yellow flowers with vibrant red stamens that bloom from July through August. The plant thrives in full sun and moderate water, attracting hummingbirds and other pollinators while displaying equally ornamental seed pods. Its combination of dramatic summer blooms, compact manageable size, and low maintenance once established makes it a standout choice for hedge plantings and mixed borders in warm regions.
Full Sun
Moderate
8-11
120in H x 120in W
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Moderate
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The real draw is those electric yellow blooms crowned with spiky red stamens that seem almost artificial in their intensity. The flowers appear in dense, upright clusters throughout peak summer months, creating a spectacle that draws hummingbirds reliably. Beyond the blooms, the seed pods are showy in their own right, extending the plant's ornamental appeal well into fall. Established plants handle drought with ease, and the shrub tolerates light shade, though flowers are most abundant and vibrant in full sun exposure.
Poinciana is grown primarily as an ornamental shrub, particularly suited to hedge plantings where its height and width can be managed through regular pruning. The showy summer flowers and attractive seed pods make it valuable in mixed borders and landscape designs where dramatic seasonal color is desired. In warm climates, it also serves as a pollinator garden plant, reliably attracting hummingbirds during its July and August bloom period.
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Poinciana is often propagated by seed. Sow seeds directly in warm soil in spring after all frost danger has passed, planting at a shallow depth in well-drained soil kept consistently moist until germination occurs.
Prune to shape as needed to maintain your desired form and size. Pruning is well-tolerated and helps control the shrub's mature spread of 7 to 10 feet, particularly useful when growing as a hedge. Late winter or early spring is the ideal time to prune before new growth emerges.
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“This species is native to the subtropical regions of Argentina and Uruguay, where it evolved in warm, seasonally dry climates. It has become widely cultivated throughout tropical and warm temperate regions worldwide, valued as an ornamental shrub for its exceptional summer flowering display. The common name 'bird-of-paradise' reflects the exotic, otherworldly appearance of its flowers, which have captured gardeners' imaginations since the plant's introduction to cultivation.”