Pruning Callistemon viminalis - Knowledgebase Question

Redwood City, CA
Question by JustAyla
June 12, 1999
When is the best time of the year to prune Callistemon viminalis?

Answer from NGA
June 12, 1999


Callistemon viminalis, or Weeping Bottle Brush, is a large shrub or small tree with pendulous branches. The major bloom period is May-July, but it produces blooms throughout the year. As a shrub, you can prune in late summer or early fall to least disrupt the blooming cycle. As a tree, thin in spring or summer to prevent tangled, top-heavy growth, and to force new flowering shoots throughout the canopy. If left alone, new leaves tend to grow only at the ends of long, hanging branches.

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