If you’re looking to add bold color and attract pollinators, bottlebrush trees (Callistemon spp.) are a top choice. Native to Australia and well-suited for warm climates, these unique trees are known for their striking red, brush-like flowers that resemble—you guessed it—a bottle brush.
Why Gardeners Love Bottlebrush Trees
- Long blooming season: Late spring through fall in many zones
- Pollinator magnet: Bees, hummingbirds, and butterflies love them
- Drought-tolerant: Once established, they handle dry spells well
- Low maintenance: Requires little pruning and thrives in average soil
Where They Grow Best
Bottlebrush trees thrive in USDA zones 8–11, preferring full sun and well-drained soil. They can be grown as small trees or large shrubs and adapt well to coastal and urban environments.
Pro Tip: Prune for Shape, Not Volume
Don’t over-prune—light shaping after flowering keeps the form tidy without reducing next year’s blooms.
Watch the Soil
While tolerant, bottlebrush trees do best in slightly acidic to neutral soils. Consider testing your soil with our Garden Tutor pH test kit if you’re unsure. Adjusting soil pH can support healthier flowering and overall vigor.
