North America Non-native Plant

Eucalyptus Gamophylla

Botanical name: Eucalyptus gamophylla

USDA symbol: EUGA4

Native status: Not native but doesn't reproduce and persist in the wild

Eucalyptus gamophylla: The Warty-Barked Wonder from Down Under Meet Eucalyptus gamophylla, a distinctive Australian eucalyptus that’s been quietly making its way into gardens around the world. While you might not recognize the name (it doesn’t have a widely-used common name), this tree has some pretty unique characteristics that make it ...

Eucalyptus gamophylla: The Warty-Barked Wonder from Down Under

Meet Eucalyptus gamophylla, a distinctive Australian eucalyptus that’s been quietly making its way into gardens around the world. While you might not recognize the name (it doesn’t have a widely-used common name), this tree has some pretty unique characteristics that make it stand out in the eucalyptus family.

Where Does It Come From?

Eucalyptus gamophylla is a true Aussie native, specifically calling the wheatbelt region of Western Australia home. This tree has adapted to some pretty tough conditions in its homeland, which gives us clues about how it might perform in our gardens.

What Makes It Special?

The most striking feature of Eucalyptus gamophylla is its bark – it’s warty and corky, giving the tree a truly unique texture that you won’t find on your typical smooth-barked eucalyptus. The leaves are a lovely blue-green color that provides nice contrast in the landscape, and when it blooms, you’ll see clusters of cream to white flowers that are quite attractive.

This is typically a small to medium-sized tree, making it more manageable than some of its giant eucalyptus cousins that can overwhelm a residential landscape.

Garden Role and Landscape Design

Eucalyptus gamophylla works well as:

  • A specimen tree where its unique bark can be appreciated
  • Part of a windbreak or screen planting
  • An ornamental shade tree for medium-sized properties
  • A focal point in Mediterranean or drought-tolerant garden designs

It’s particularly well-suited for Australian native gardens, Mediterranean-style landscapes, and any garden design that emphasizes water-wise plants.

Growing Conditions and Care

Like most eucalyptus species, this tree prefers:

  • Full sun exposure
  • Well-draining soil (it doesn’t like wet feet)
  • Minimal water once established

It’s suitable for USDA hardiness zones 9-11, so gardeners in cooler climates will need to think twice about planting it outdoors.

Planting and Care Tips

If you decide to give Eucalyptus gamophylla a try, here’s how to set it up for success:

  • Plant in spring when temperatures are warming up
  • Water regularly during the first year to help establish roots
  • Once established, it’s quite drought tolerant
  • Minimal pruning is needed – just remove dead or damaged branches
  • Avoid overwatering, which can lead to root problems

Benefits for Wildlife

The cream to white flowers of Eucalyptus gamophylla are attractive to bees and other pollinators, making it a decent choice if you’re looking to support local pollinator populations. However, since this isn’t a native species in most regions where it’s grown, it may not provide the same level of ecological support as native alternatives.

Should You Plant It?

Eucalyptus gamophylla can be an interesting addition to the right garden, particularly if you’re drawn to unique bark textures and drought-tolerant trees. However, as with any non-native plant, it’s worth considering whether native alternatives might better serve your local ecosystem.

If you’re in a climate similar to its native Western Australia, and you appreciate distinctive trees that don’t require much water, this eucalyptus could work well for you. Just make sure you have the right growing conditions and enough space for it to develop properly.

Before planting, consider researching native trees in your area that might provide similar benefits while supporting local wildlife and ecosystems. Your local extension office or native plant society can be great resources for finding native alternatives that suit your specific needs and growing conditions.

Eucalyptus Gamophylla

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Myrtales

Family

Myrtaceae Juss. - Myrtle family

Genus

Eucalyptus L'Hér. - gum

Species

Eucalyptus gamophylla F. Muell.

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA