North America Non-native Plant

Eucalyptus Lesouefii

Botanical name: Eucalyptus lesouefii

USDA symbol: EULE12

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

Eucalyptus lesouefii: A Hidden Gem from Western Australia’s Goldfields If you’re searching for a unique eucalyptus species that’s a bit off the beaten path, let me introduce you to Eucalyptus lesouefii. This lesser-known Australian native might not have a catchy common name, but it certainly deserves a spot in the ...

Eucalyptus lesouefii: A Hidden Gem from Western Australia’s Goldfields

If you’re searching for a unique eucalyptus species that’s a bit off the beaten path, let me introduce you to Eucalyptus lesouefii. This lesser-known Australian native might not have a catchy common name, but it certainly deserves a spot in the right garden. Named after French naturalist Alexandre Lesouef, this charming tree brings a slice of Western Australia’s rugged beauty to your landscape.

Where Does It Call Home?

Eucalyptus lesouefii is native to the Goldfields region of Western Australia, where it has adapted to some pretty tough conditions. This hardy species thrives in the semi-arid landscapes of its homeland, making it a champion of drought tolerance.

What Makes It Special?

This eucalyptus is a small to medium-sized tree that typically reaches heights of 15-25 feet, making it more manageable than some of its towering cousins. Here’s what you can expect:

  • Smooth, often colorful bark that peels to reveal fresh layers underneath
  • Narrow, lance-shaped leaves with a blue-green hue
  • Clusters of cream to white flowers that appear seasonally
  • A naturally sculptural growth habit that adds character to any landscape

Why You Might Want to Plant It

Eucalyptus lesouefii isn’t just another pretty tree – it’s a hardworking addition to the right garden. Once established, it’s incredibly drought tolerant, making it perfect for water-wise landscaping. The flowers are magnets for pollinators, including native bees and honey bees, while also providing nectar for birds.

This tree works beautifully as a specimen plant, in small groves, or as part of a windbreak. It’s particularly suited for Mediterranean-style gardens, drought-tolerant landscapes, and native Australian plant collections.

Growing Conditions and Care

The good news? Eucalyptus lesouefii isn’t particularly fussy once you understand its needs:

  • Climate: Best suited for USDA hardiness zones 9-11
  • Sunlight: Full sun is essential for healthy growth
  • Soil: Well-draining soil is crucial – it won’t tolerate waterlogged conditions
  • Water: Regular watering the first year, then drought tolerant
  • Maintenance: Minimal pruning needed, just remove dead or damaged branches

Planting and Establishment Tips

Plant your Eucalyptus lesouefii in spring when the weather is warming up. Choose a spot with excellent drainage and plenty of room for growth. During the first year, water regularly to help establish a strong root system, but don’t overdo it – eucalyptus trees are more likely to suffer from too much water than too little.

After establishment, you can largely leave this tree to its own devices. It’s naturally pest-resistant and doesn’t require fertilization in most soils.

Is This Tree Right for Your Garden?

Eucalyptus lesouefii is ideal for gardeners in warm, dry climates who want to create sustainable, low-maintenance landscapes. It’s particularly perfect if you’re interested in supporting local wildlife or creating a Mediterranean or Australian-themed garden.

However, if you live in a cooler, wetter climate or have heavy clay soil with poor drainage, this might not be your best choice. Also, keep in mind that like most eucalyptus species, it’s not native to North America, so consider pairing it with or substituting native alternatives that provide similar benefits in your region.

The Bottom Line

Eucalyptus lesouefii may not be the most common tree in the garden center, but for the right gardener in the right climate, it’s a winner. Its combination of drought tolerance, pollinator appeal, and unique aesthetic make it a valuable addition to water-wise landscapes. Just remember – this tree is happiest when it can stretch its roots in well-draining soil under plenty of sunshine, much like its wild home in Western Australia’s golden landscapes.

Eucalyptus Lesouefii

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 lesouefii Maiden

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