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The Weeping bottlebrush grows into a medium size tree 20-30 ft. tall with an upright form and weeping branches. Young plants grow for many years into narrow columnar plants, 10-15 ft. wide, but become increasingly broad, eventually reaching 20-25 ft. in width. Foliage is comprised of soft narrow pale green leaves that hang from drooping branches to create a pleasing weeping appearance. Red flowers are showy in early to mid spring as well as occur intermittently throughout warm months of the year.

Weeping bottlebrush comes from stream banks and coastal plains across eastern Australia where it grows with regular moisture and mild temperatures. However, like other bottlebrush species, it has proven to be widely adaptable in cultivation and is planted in the Inland Empire where it tolerates summer dry and warm conditions, and winter temperatures to 20-25°F . It is commonly used as a street tree, background screen and weeping accent plant in residential and commercial gardens and landscapes.

Several cultivars are currently available from nurseries, including: C. v. Captain Cook is a compact selection, 4-6 ft. tall and as wide, with dense narrow leaves and crimson red flowers; C. v. McGaskillii is a robust and colorful variety reaching the same height as the species, but has a more columnar form; and C. v. Red Cascade is a standard size cultivar growing to 25 ft. tall, 15 ft. wide, with larger clusters of hanging red flowers.

Water Needs

The Weeping bottlebrush is well adapted to heat, sun, wind and aridity as long as it doesn't experience long periods of drought stress. It commonly receives enough moisture from winter rains from November to March; bi-monthly deep watering is recommended through summer and mid-fall.

The chart shown below provides a baseline guide to the monthly irrigation schedule and volume of supplemental water needed to maintain healthy growth throughout the average year. It should be noted there are several months indicated by an asterisk (*) when winter rains can provide sufficient moisture and irrigation is not needed.

Irrigation Schedule and Graph

Moderate Water Use Plants

Irrigation Schedule 3

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
Runs per Month 0x to 3x 0x to 3x 0x to 3x 2x to 3x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 2x to 3x 0x to 3x 0x to 3x
Inches per Run 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1"
Inches per Month 0" to 3" 0" to 3" 0" to 3" 2" to 3" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 2" to 3" 0" to 3" 0" to 3"

Range of supplemental summer water: 9"-16"
Range of supplemental winter water: 0"-15"

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
For more information on how to use this Irrigation Schedule and Graph, follow this link.

For information how to calculate your irrigation system’s schedule and precipitation rate, please follow this link.

Plant Properties

Plant Type: Tree
Foliage Character: Evergreen
Habit: Upright, Narrow, Low-branching, Weeping
Growth Rate: Moderate
Height: 20 ft. - 30 ft.
Width: 20 ft. - 25 ft.
Water Needs: Moderate 3
Foliage Color: Pale green
Flower Color: Red
Flower Season: Spring
Soil Adaptations: Silt, Loam, Clay, Calcareous soil
Exposure Adaptations: Wind, Heat, Frost, Aridity, All day sun
Function: Wildlife value, Screening, Parkway and median tree, Hummingbird plant, Flowering accent plant, Background plant, Attracts bees


May need proper staking when young, only until it can support itself. Remove stakes as early as appropriate so the plant will continue to develop its own strength. Prune when young for good long-term structure. Organic mulch of 2-3 inches under the canopy is ideal, held away from the trunk and root crown. Plant fall through spring. Prune in fall or winter (D).



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