Callistemon citrinus ‘Red Cluster’ has a vigorous, rounded growth habit and produces a profusion of crimson-red brush-like flowers during the spring season, with a second flowering occurring in the autumn. Its flowers are attractive to nectar-seeking birds. Once established, Callistemon citrinus ‘Red Cluster’ is drought-tolerant. Callistemon citrinus is evergreen and native to Australia. Learn more about Callistemon citrinus.