To stop Callistemons (bottlebrush) and Melaleuca plants from becoming straggly after repeat flowering, prune two-thirds of the spent flower off — the result will be three or more new branches and, hence, flowers next season. Always give the plant a good watering after pruning as well.
It’s best to carry out this pruning after the main flowering period has finished, so the plant has time to recover and produce new growth before the next flowering season. Avoid cutting into old, woody stems too deeply, as these may not readily produce new shoots. Using clean, sharp secateurs will help prevent damage to the plant and reduce the risk of disease. Over time, regular pruning not only encourages more flowers but also improves airflow through the plant, which can help reduce fungal problems and keep it looking tidy.
