North America Non-native Plant

Manna Gum

Botanical name: Eucalyptus viminalis

USDA symbol: EUVI

Life cycle: perennial

Habit: tree

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Manna Gum: A Tall Tale of an Australian Beauty in American Gardens If you’ve ever wondered about that stately tree with the gorgeous peeling bark and graceful drooping leaves, you might be looking at a manna gum (Eucalyptus viminalis). This Australian native has found its way into gardens across California ...

Manna Gum: A Tall Tale of an Australian Beauty in American Gardens

If you’ve ever wondered about that stately tree with the gorgeous peeling bark and graceful drooping leaves, you might be looking at a manna gum (Eucalyptus viminalis). This Australian native has found its way into gardens across California and Hawaii, bringing a touch of Down Under elegance to American landscapes.

What is Manna Gum?

Manna gum is a perennial tree that can grow impressively tall – we’re talking 13 feet and beyond! This isn’t your typical backyard shade tree; it’s a show-stopper that develops a single trunk and can reach magnificent heights under the right conditions. The name manna gum comes from the sweet, edible substance that sometimes oozes from the bark, which Aboriginal Australians traditionally harvested.

Where Does Manna Gum Grow?

Originally from southeastern Australia, manna gum has established itself as a non-native species in California and Hawaii. It’s hardy enough to reproduce on its own in these areas, which means it’s found its happy place in the American climate – at least in certain regions.

The Visual Appeal: Why Gardeners Fall in Love

Let’s be honest – manna gum is a stunner. Here’s what makes it so attractive:

  • Smooth, cream to white bark that peels away in artistic ribbons
  • Long, narrow leaves that hang gracefully, creating a weeping effect
  • Clusters of small white flowers that appear seasonally
  • Fast growth rate of 3-6 feet per year

Garden Role and Landscape Use

Manna gum works best as a specimen tree on large properties where it has room to spread its wings. It’s excellent for:

  • Creating windbreaks on rural properties
  • Erosion control on slopes
  • Adding height and drama to Mediterranean-style gardens
  • Providing a focal point in expansive landscapes

Growing Conditions and Care

If you’re thinking about planting manna gum, here’s what it needs to thrive:

  • Sunlight: Full sun is essential
  • Soil: Well-draining soil is crucial – these trees hate wet feet
  • Water: Drought tolerant once established, but needs regular watering the first year
  • Climate: Hardy in USDA zones 8-10

Planting and Care Tips

Spring is your best bet for planting manna gum. Give your young tree plenty of water during its first year, then step back and let it do its thing. The good news? These trees are relatively low-maintenance once established. Minimal pruning is needed, and they’re quite forgiving if you forget to water them occasionally.

Wildlife and Pollinator Benefits

The white flower clusters are a hit with bees and other pollinators, making manna gum a valuable addition for gardeners interested in supporting local pollinator populations.

A Word About Responsible Gardening

While manna gum can be a beautiful addition to the right landscape, it’s worth considering native alternatives that provide similar aesthetic appeal while supporting local ecosystems. Before planting, check with your local extension office about native trees that might serve the same purpose in your landscape design.

Is Manna Gum Right for Your Garden?

Manna gum is best suited for gardeners with large properties who want a fast-growing, drought-tolerant tree with unique visual appeal. However, it’s not the right choice for small urban lots or areas where space is limited. If you have the room and the right climate, manna gum can be a striking addition to your landscape – just make sure you’re prepared for its eventual size and consider native alternatives first.

Remember, successful gardening is about choosing plants that work well in your specific conditions while being mindful of your local ecosystem. Whether you choose manna gum or a native alternative, the key is creating a landscape that brings you joy while supporting the environment around you.

Manna Gum

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 viminalis Labill. - manna gum

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