North America Non-native Plant

Eucalyptus Obtusiflora

Botanical name: Eucalyptus obtusiflora

USDA symbol: EUOB10

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

Synonyms: Eucalyptus dongarraensis Maiden & Blakely (EUDO5)   

Eucalyptus obtusiflora: A Lesser-Known Aussie Beauty for Your Garden Meet Eucalyptus obtusiflora, one of Australia’s more understated eucalyptus species that’s been quietly winning over gardeners who appreciate unique native trees. While you might not find this beauty at every garden center, it’s worth getting to know if you’re drawn to ...

Eucalyptus obtusiflora: A Lesser-Known Aussie Beauty for Your Garden

Meet Eucalyptus obtusiflora, one of Australia’s more understated eucalyptus species that’s been quietly winning over gardeners who appreciate unique native trees. While you might not find this beauty at every garden center, it’s worth getting to know if you’re drawn to distinctive Australian flora.

What’s in a Name?

This eucalyptus doesn’t have a widely recognized common name, so most folks simply call it by its botanical name, Eucalyptus obtusiflora. You might occasionally see it listed under its synonym, Eucalyptus dongarraensis, but don’t let that confuse you—they’re the same plant!

Where Does It Come From?

Eucalyptus obtusiflora calls Western Australia home, specifically thriving in the wheatbelt and goldfields regions. This means it’s naturally adapted to some pretty tough conditions—think hot, dry summers and relatively mild winters.

What Makes It Special?

The real charm of E. obtusiflora lies in its distinctive flower buds, which are beautifully rounded and obtuse (hence the name obtusiflora). When these buds open, they reveal clusters of cream-white flowers that create a lovely contrast against the typical eucalyptus foliage. It’s these subtle details that make plant enthusiasts take a second look.

Should You Plant It?

Here’s where things get interesting. If you’re gardening outside of Australia, this eucalyptus can be a wonderful addition to the right garden, but there are a few things to consider:

  • Climate compatibility: It thrives in USDA zones 9-11 and prefers Mediterranean-like conditions
  • Space requirements: Like most eucalyptus, it can grow into a substantial tree
  • Local alternatives: Consider native trees from your own region first—they’ll support local wildlife better and require less water and maintenance

Perfect Garden Roles

If you decide E. obtusiflora is right for your space, here’s where it shines:

  • As a specimen tree in drought-tolerant landscapes
  • Part of a Mediterranean or Australian-themed garden
  • In native plant collections for eucalyptus enthusiasts
  • As a windbreak in appropriate climates

Growing Conditions Made Simple

This eucalyptus isn’t particularly fussy, which is great news for gardeners:

  • Sunlight: Full sun is essential
  • Soil: Well-draining soil is crucial—it won’t tolerate waterlogged conditions
  • Water: Drought-tolerant once established, but needs regular water while getting settled
  • Temperature: Frost-sensitive, so protect young plants in cooler areas

Planting and Care Tips

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

  • Plant in spring after the last frost danger has passed
  • Choose a spot with excellent drainage—raise the planting area if necessary
  • Water regularly for the first year while roots establish
  • Once established, it’s remarkably drought-tolerant
  • Minimal pruning needed, but remove dead or damaged branches as needed

Wildlife and Pollinator Benefits

The cream-white flowers of E. obtusiflora are quite attractive to bees and other nectar-loving insects. If you’re in an area where this tree is appropriate, it can provide valuable nectar sources, especially during its flowering period.

The Bottom Line

Eucalyptus obtusiflora is a charming choice for the right garden and the right gardener. It’s not the flashiest tree you’ll ever plant, but its subtle beauty and tough constitution make it worth considering if you’re creating a drought-tolerant landscape in a suitable climate. Just remember to always consider your local native alternatives first—they’re usually the best choice for supporting local ecosystems and requiring minimal care.

Whether you choose this Australian native or opt for something closer to home, the key is selecting plants that match both your garden conditions and your local environment’s needs.

Eucalyptus Obtusiflora

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 obtusiflora DC.

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