North America Non-native Plant

Eucalyptus Multicaulis

Botanical name: Eucalyptus multicaulis

USDA symbol: EUMU4

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

Eucalyptus multicaulis: The Multi-Stemmed Wonder from Down Under If you’ve ever wondered about adding a touch of Australian flair to your garden, Eucalyptus multicaulis might just catch your eye. This distinctive eucalyptus species brings something a little different to the table with its unique multi-stemmed growth habit that sets it ...

Eucalyptus multicaulis: The Multi-Stemmed Wonder from Down Under

If you’ve ever wondered about adding a touch of Australian flair to your garden, Eucalyptus multicaulis might just catch your eye. This distinctive eucalyptus species brings something a little different to the table with its unique multi-stemmed growth habit that sets it apart from its more common cousins.

What Makes Eucalyptus multicaulis Special?

True to its name, Eucalyptus multicaulis is all about those multiple stems (that’s what multicaulis means, after all). This small to medium-sized tree develops an attractive branching structure that creates visual interest in any landscape. Like most eucalyptus species, it features the characteristic smooth bark that peels away in patches, creating a beautiful mottled appearance that changes throughout the seasons.

Where Does It Come From?

This eucalyptus calls the southwestern regions of Western Australia home, where it has adapted to thrive in Mediterranean-like conditions. In its native habitat, it’s perfectly suited to hot, dry summers and mild, wet winters.

Is This Tree Right for Your Garden?

Eucalyptus multicaulis could be a great choice if you’re looking for:

  • A drought-tolerant tree once established
  • Something unique with interesting bark and growth habit
  • A tree that thrives in full sun
  • Low-maintenance landscaping options
  • Mediterranean or Australian-themed garden designs

However, keep in mind that this is not a native species for most gardeners outside of Western Australia. While it’s not known to be invasive, you might want to consider native alternatives that provide similar benefits while supporting local ecosystems.

Growing Conditions and Care

If you decide to give Eucalyptus multicaulis a try, here’s what it needs to thrive:

Climate: Best suited for USDA hardiness zones 9-11, where it can handle mild frosts but prefers warmer conditions.

Sunlight: Full sun is a must – this tree loves basking in bright, direct sunlight all day long.

Soil: Well-draining soil is crucial. It’s not particularly fussy about soil type, but waterlogged conditions are a definite no-go.

Water: While it needs regular watering during its first year to get established, once mature, it’s impressively drought tolerant.

Planting and Care Tips

Getting your Eucalyptus multicaulis off to a good start is pretty straightforward:

  • Plant in spring when the weather is warming up
  • Water regularly during the first growing season
  • Once established, reduce watering – this tree actually prefers drier conditions
  • Minimal pruning needed, but you can shape it when young if desired
  • Mulch around the base to help retain moisture during establishment

Wildlife and Pollinator Benefits

Like most eucalyptus species, when Eucalyptus multicaulis blooms, it typically produces flowers that attract bees and other pollinators. However, the wildlife benefits may be limited compared to native species in your area, which have co-evolved with local fauna over thousands of years.

The Bottom Line

Eucalyptus multicaulis can be an interesting addition to the right garden – particularly if you’re creating a Mediterranean-style landscape or drought-tolerant garden in a suitable climate zone. Its unique multi-stemmed growth habit and attractive bark make it a conversation starter. Just remember to consider native alternatives first, as they’ll likely provide better support for your local ecosystem while offering similar drought tolerance and visual appeal.

If you do choose to plant this Australian native, you’ll be rewarded with a relatively low-maintenance tree that brings a touch of the Australian bush to your backyard. Just make sure you’re in the right climate zone and can provide the well-draining conditions it craves!

Eucalyptus Multicaulis

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 multicaulis Blakely

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