New Zealand Broom

(Carmichaelia australis)

New Zealand Broom (Carmichaelia australis)

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Estimated Native Range
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Climate Requirements

Precipitation 18" - 222"
High Temp. 56°F - 83°F
Low Temp. 15°F - 53°F
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Summary

Carmichaelia australis, commonly known as New Zealand Broom or Common Broom, is an evergreen shrub native to a variety of habitats in New Zealand, including dry riverbeds, open scrublands, and rocky areas. It typically grows to a height of 6 feet (1.8 meters) and a width of 3 feet (0.9 meters). This plant is characterized by its slender, leafless green branches that photosynthesize, and small, inconspicuous leaves that may appear on seedlings or after injury. The flowers, which are usually purple and white, bloom in the spring and summer and are followed by seed pods that add interest to the plant.

New Zealand Broom is valued for its unique form and adaptability to a range of garden settings. It is drought-tolerant once established, making it suitable for xeriscaping and gardens with low water availability. It can be used in rock gardens, as a specimen plant, or in mass plantings for textural contrast. While it prefers full sun, it can tolerate partial shade and is adaptable to various soil types, provided they have good drainage. Gardeners should be aware that it can be sensitive to root disturbance. There are no major disease or pest issues, but it may not thrive in overly wet or humid conditions.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub
  • Height: 3-12 feet
  • Width: 1-3 feet
  • Growth Rate: Moderate
  • Flower Color: Purple, White
  • Flowering Season: Spring, Summer
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun
  • Water: Low, Medium
  • Drainage: Medium, Fast

Common Uses

Bee Garden, Border Plant, Butterfly Garden, Low Maintenance, Showy Flowers

Natural Habitat

Dry riverbeds, open scrublands, and rocky areas in New Zealand

Other Names

Common Names:

Scientific Names: Carmichaelia australis, Carmichaelia aligera, Carmichaelia flagelliformis, Carmichaelia cunninghamii, Carmichaelia robusta, Carmichaelia rivulata, Carmichaelia subulata, Carmichaelia arenaria, Carmichaelia violacea

GBIF Accepted Name: Carmichaelia australis R.Br.