Water Gum

(Tristaniopsis laurina)

Water Gum (Tristaniopsis laurina)

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Estimated Native Range
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Summary

Tristaniopsis laurina, commonly known as Water Gum, is an evergreen tree native to the rainforests and moist open forests of Eastern Australia. It typically exhibits a slow growth rate and reaches a height of 15–30 feet (4.6–9.1 m) in cultivation, but can grow up to 128 feet (39 m) in its natural habitat. The tree has a multi-branched habit and can be pruned to maintain a compact shape, making it versatile for various landscape designs. Its leaves are glossy and lance-shaped, contributing to its aesthetic appeal. Water Gum produces clusters of bright yellow flowers that are small but numerous, blooming in late spring or early summer. The flowers have a distinctive scent that some may find unpleasant, yet they are attractive to honeybees and small native bee species, adding to the biodiversity of the garden.

Water Gum is valued for its ease of cultivation, adaptability to urban environments, and its use as a shade tree. It is frequently planted as a street tree and in gardens for its ornamental foliage and flowers. It thrives in full sun to part shade and requires medium amounts of water, performing best in well-drained soils. While it is generally low-maintenance, it can be susceptible to pests such as psyllids. Gardeners should be aware that the tree’s roots can be invasive, so it should be planted away from plumbing and foundations.CC BY-SA 4.0

Plant Description

  • Plant Type: Tree
  • Height: 20-35 feet
  • Width: 15-30 feet
  • Growth Rate: Moderate
  • Flower Color: Yellow
  • Flowering Season: Spring, Summer
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium
  • Drainage: Medium, Fast

Common Uses

Bird Garden, Butterfly Garden, Hedges, Low Maintenance, Potted Plant, Showy Flowers, Street Planting

Natural Habitat

Native to rainforests and moist open forests of Eastern Australia

Other Names

Common Names: Water-Gum, Kanuka, Kanooka

Scientific Names: , Tristania laurina, Tristaniopsis laurina, Melaleuca laurina, Tristania bakeriana,

GBIF Accepted Name: Tristaniopsis laurina (Sm.) Paul G.Wilson & J.T.Waterh.