Bottlebrush Callistemon ‘Harkness’ - Callistemon ‘Harkness’Callistemon Harkness (Bottlebrush) Callistemon Harkness is a hardy Australian native valued for its vivid red bottlebrush flowers and naturally compact growth habit. It delivers year round greenery, reliable flowering, and excellent performance with minimal maintenance. Why Gardeners Love Callistemon Harkness Bright red bottlebrush flowers Produces eye catching blooms that create instant impact. Australian native Well adapted to local climates and low