Red Cluster Bottlebrush Shrub
Callistemon rigidus 'Red Cluster'The Bottlebrush ‘Red Cluster’ (Callistemon citrinus ‘Red Cluster’) is a stunning evergreen shrub known for its vibrant, brush-like red flower spikes that bloom profusely in spring and summer. These vivid blossoms resemble bottlebrushes and attract hummingbirds, butterflies, and bees, adding movement and life to the garden. With its dense foliage of narrow, aromatic leaves and upright form, this shrub brings both color and texture to borders, screens, and accent plantings.
Typically growing 6–10 feet tall and wide, ‘Red Cluster’ performs best in full sun and well-draining soil. It’s heat-tolerant, drought-resistant once established, and thrives in a variety of climates, making it a favorite for low-maintenance landscapes. This variety is equally at home in coastal gardens, xeriscapes, or as a container specimen. The combination of bright red blooms, evergreen foliage, and resilience makes the Red Cluster Bottlebrush a standout choice for gardeners seeking long-lasting color and easy-care beauty.
Choose a sunny location with well-draining soil. Dig a hole twice as wide as the root ball and plant level with the soil surface.
Care Instructions
Watering:
Water regularly during establishment. Once mature, it tolerates drought but benefits from deep watering during prolonged dry spells.
Pruning:
Prune lightly after flowering to shape and encourage new growth. Avoid cutting into old wood.
Pest Control:
Monitor for aphids and scale insects. Treat with insecticidal soap or neem oil as needed.
Soil Tips:
Prefers slightly acidic to neutral soil (pH 6.0–7.5). Amend with organic matter to improve fertility and drainage.
