North America Non-native Plant

Eucalyptus Youngiana

Botanical name: Eucalyptus youngiana

USDA symbol: EUYO3

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

Synonyms: Eucalyptus pyriformis Turcz. ssp. youngiana (F. Muell.) Boomsma (EUPYY2)   

Eucalyptus youngiana: An Elusive Australian Native If you’ve stumbled across the name Eucalyptus youngiana in your plant research, you might be scratching your head wondering why information seems so scarce. Don’t worry – you’re not missing anything obvious! This particular eucalyptus species is something of a botanical mystery, with limited ...

Eucalyptus youngiana: An Elusive Australian Native

If you’ve stumbled across the name Eucalyptus youngiana in your plant research, you might be scratching your head wondering why information seems so scarce. Don’t worry – you’re not missing anything obvious! This particular eucalyptus species is something of a botanical mystery, with limited readily available information for home gardeners.

What We Know About Eucalyptus youngiana

Eucalyptus youngiana belongs to the vast family of Australian eucalyptus trees, and like its relatives, it’s a dicot (dicotyledon) plant. The most concrete information we have is that it’s closely related to – or possibly synonymous with – Eucalyptus pyriformis subspecies youngiana, according to botanical classification systems.

Based on this relationship, Eucalyptus youngiana likely originates from Western Australia, where many eucalyptus species have evolved in the continent’s unique climate and soil conditions.

The Challenge for Gardeners

Here’s where things get tricky for anyone hoping to add this particular eucalyptus to their landscape. The limited available information makes it difficult to provide specific guidance on:

  • Exact growing requirements
  • Mature size and growth habits
  • Cold hardiness zones
  • Specific care instructions
  • Availability from nurseries

What This Means for Your Garden

If you’re drawn to the idea of growing Eucalyptus youngiana, you might want to consider exploring its better-documented relative, Eucalyptus pyriformis (commonly known as Pear-fruited Mallee). This species shares similar botanical characteristics and may be easier to source and grow successfully.

Generally speaking, most eucalyptus species prefer:

  • Well-draining soil
  • Full sun exposure
  • Minimal water once established
  • Protection from harsh winds when young

A Word of Caution

Before planting any eucalyptus species, especially if you’re outside Australia, it’s worth checking with local extension services about potential invasive concerns in your area. Some eucalyptus species can become problematic in certain climates and ecosystems.

The Bottom Line

While Eucalyptus youngiana remains an intriguing but elusive member of the eucalyptus family, the lack of specific growing information makes it a challenging choice for most home gardeners. If you’re passionate about Australian natives, consider starting with better-documented species that can provide the same aesthetic appeal with clearer care guidelines.

Sometimes in gardening, as in life, the most mysterious plants aren’t necessarily the best choices for our backyards – but they certainly keep botanical enthusiasts on their toes!

Eucalyptus Youngiana

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 youngiana 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