Bottlebrush Tree (Callistemon rigidus): An Australian Native with Stiff, Red Brush-Like Flowers

Bottlebrush Tree, Callistemon rigidus, is an evergreen shrub or small tree from Australia. Its stiff, cylindrical, bright red flower spikes resemble a bottle brush, attracting nectar-feeding birds.

Iconic Flowers

This plant grows 10–20 feet tall with narrow, leathery, aromatic leaves. The flower spikes are 3–5 inches long, composed of numerous stamens with red filaments and yellow anthers. They appear in spring and sporadically through summer. The woody seed capsules persist on the branches for years.

Adaptable and Tough

Callistemon rigidus thrives in full sun, well-drained soil, and is drought-tolerant once established. It tolerates light frost (zone 9). It responds well to pruning. A classic Australian native for screens, hedges, and bird gardens in Mediterranean and subtropical climates.