Callistemon viminalis - Weeping Bottlebrush

Callistemon viminalis – Weeping Bottlebrush

Habit and Habitat:
Callistemon viminalis, commonly known as the Weeping Bottlebrush, is an evergreen shrub to small tree native to eastern Australia, particularly along the coast and river systems of Queensland and New South Wales. It naturally grows along watercourses, floodplains, and wetlands, thriving in moist, well-drained soils but adaptable to a wide range of conditions. Its graceful, pendulous branches and vibrant flowers make it a popular ornamental choice.

Place in Local Habitat and Ecosystem Distribution:
In its natural range, it provides habitat and nectar for a diverse array of wildlife. Its dense foliage offers nesting sites for small birds, while its prolific flowers are an important nectar source for honeyeaters, lorikeets, and a variety of native bees. Its tolerance to occasional inundation makes it valuable for riparian restoration projects.

Planting Companions:
Pairs beautifully with other nectar-rich species such as Grevillea robusta, Melaleuca quinquenervia, and Banksia integrifolia, as well as native grasses like Lomandra longifolia for underplanting.

Human and Wildlife Uses:
Highly valued as an ornamental for its vivid floral displays, it’s also planted as a street tree and windbreak. The abundant nectar supports birdlife and pollinators year-round. In traditional use, Indigenous Australians collected nectar from the flowers to drink fresh or mix with water for a sweet beverage.

Care Instructions:
Plant in full sun for best flowering. Prefers moist soils but tolerates drought once established. Responds well to pruning after flowering to maintain shape and encourage dense growth. Suitable for coastal gardens, wet spots, and urban plantings.

Size, Height, Width, Flower and Leaf Characteristics:
Typically 4–10 m high and 4–6 m wide, though dwarf cultivars are available. The narrow, lanceolate leaves are mid-green and aromatic when crushed. Flowers are bright crimson-red bottlebrush spikes up to 10 cm long, produced mainly in spring and summer but can occur sporadically year-round in warm climates.

Latin Etymology:
The genus name Callistemon derives from the Greek kallos meaning “beautiful” and stemon meaning “stamen,” referring to its showy stamens. The species name viminalis means “with long, flexible shoots,” describing its weeping habit.

Traditional Uses:
Indigenous Australians used the flowers as a natural sweetener and source of energy, soaking them in water to release the nectar.

Planting Guidelines:
Select a sunny position and allow room for its spreading form. Mulch well to retain soil moisture. Works well as a feature tree, in mixed native plantings, or as part of wildlife gardens.