Bottlebrush Plants

Bottlebrush is the common name for Callistemon, a genus of Australian shrubs and small trees known for cylindrical flower spikes made of conspicuous stamens. The [Australian National Botanic Gardens](https://www.anbg.gov.au/callistemon/callistemon.html) notes that species vary in size, flowering and growing conditions, so choose a named species or cultivar when a particular garden scale or flower color matters. ## Form and landscape use Depending on the species, bottlebrushes range from compact shrubs to small trees, with upright, spreading or weeping forms. Their flowers may be red, pink, cream or yellow, and the nectar-rich spikes attract birds and insects. Use suitable species as flowering screens, informal hedges, wildlife plantings or specimen shrubs. ## Siting and soil Most bottlebrushes flower best in full sun, though some tolerate partial shade, as described by [ABC Gardening Australia](https://www.abc.net.au/gardening/plant-finder/callistemon/9441952). They grow in varied soils but generally need drainage; many tolerate damp conditions, while highly alkaline soils are unsuitable. Moisture and frost tolerance vary by species, so match the plant to the site and local climate. ## Maintenance Lightly shape after flowering, cutting into leafy new growth rather than bare interior wood. Mulch to conserve moisture and limit weeds. Propagate named cultivars from cuttings to retain their characteristic form and flowers.