Callistemon citrinus 'Harkness' – Harkness Bottlebrush

Callistemon citrinus 'Harkness' is a compact, evergreen Australian native shrub with dense growth and vivid red bottlebrush flowers. It’s ideal for hedging, screening, borders, and native gardens, offering year-round structure and reliable flowering.

It typically grows 1.5–2.5 metres tall with a bushy form that responds well to pruning. Crimson-red flowers appear in spring and again in late summer, attracting birds, bees, and beneficial insects. The fine foliage is aromatic when brushed, adding sensory appeal.

They look excellent when planted as a low hedge or grouped in native plantings. Callistemon citrinus 'Harkness' thrives in full sun, tolerates light frost, and is drought-tolerant once established, making it a reliable choice for low-maintenance, bird-friendly, and coastal gardens.

Please note, as living products, our trees naturally vary in size and appearance throughout the seasons. The photos on our website are provided as a helpful guide, but may not always reflect our current batches. We always aim to deliver stock as pictured, but some variation is to be expected. For up-to-date sizing, please refer to our current height guide. If you’d like to see photos of our current stock, just let us know—we’re happy to send them!