North America Non-native Plant

Cajeput Tree

Botanical name: Melaleuca linariifolia

USDA symbol: MELI7

Life cycle: perennial

Habit: tree

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

Cajeput Tree: A Coastal Beauty with Considerations for American Gardens If you’ve ever wandered through Florida’s coastal areas and noticed an elegant tree with distinctive peeling bark and delicate white flowers, you may have encountered the cajeput tree (Melaleuca linariifolia). This striking Australian native has found its way into American ...

Cajeput Tree: A Coastal Beauty with Considerations for American Gardens

If you’ve ever wandered through Florida’s coastal areas and noticed an elegant tree with distinctive peeling bark and delicate white flowers, you may have encountered the cajeput tree (Melaleuca linariifolia). This striking Australian native has found its way into American landscapes, particularly in warmer regions, where it brings a unique aesthetic appeal that’s hard to ignore.

What Makes the Cajeput Tree Special

The cajeput tree is truly a showstopper in the landscape world. Its most distinctive feature is undoubtedly its papery bark, which peels away in thin, cream-colored layers, creating an almost sculptural quality that adds year-round visual interest. The narrow, linear leaves give the tree a soft, wispy appearance that dances gracefully in coastal breezes.

When flowering season arrives, the cajeput tree produces clusters of white, bottlebrush-like blooms that are absolutely buzzing with activity from bees, butterflies, and other pollinators. These nectar-rich flowers make it a valuable addition for gardeners looking to support local pollinator populations.

Where You’ll Find Cajeput Trees

Originally hailing from the coastal regions of eastern Australia, particularly New South Wales and Queensland, the cajeput tree has established itself in Florida within the United States. As a non-native species that reproduces naturally without human intervention, it has adapted well to similar coastal environments in America.

Growing Cajeput Trees: The Basics

If you’re considering adding a cajeput tree to your landscape, here’s what you need to know about successfully growing this Australian beauty:

Perfect Growing Conditions

  • Sunlight: Full sun exposure for optimal growth and flowering
  • Soil: Well-draining soils are essential; this tree doesn’t like wet feet
  • Water: Drought tolerant once established, but benefits from regular watering during the establishment period
  • Climate: Thrives in USDA hardiness zones 9-11
  • Salt tolerance: Excellent choice for coastal properties due to its natural salt tolerance

Size and Growth Expectations

The cajeput tree is a perennial woody species that typically grows as a single-trunked tree reaching heights of 13-16 feet or more at maturity. Under certain environmental conditions, it may develop a multi-stemmed growth habit or remain shorter, but generally, you can expect a substantial tree that will become a prominent feature in your landscape.

Planting and Care Tips

  • Plant in spring or early fall for best establishment
  • Water regularly during the first year to help roots establish
  • Apply mulch around the base to retain moisture and suppress weeds
  • Minimal pruning required – just remove dead or damaged branches
  • Protect young trees from strong winds until well-established
  • Once mature, the tree requires very little maintenance

Landscape Design Ideas

The cajeput tree works beautifully in several landscape scenarios. It makes an excellent specimen tree where its unique bark and form can be appreciated up close. For coastal properties, it serves double duty as both an attractive landscape feature and an effective windbreak. The tree also excels in Mediterranean-style gardens and low-water landscape designs, where its drought tolerance becomes a real asset.

A Word About Native Alternatives

While the cajeput tree can be a lovely addition to appropriate landscapes, it’s worth considering native alternatives that provide similar benefits while supporting local ecosystems more directly. For coastal areas, consider native options like:

  • Southern magnolia (Magnolia grandiflora) for evergreen structure
  • Live oak (Quercus virginiana) for long-term shade and wildlife habitat
  • Bald cypress (Taxodium distichum) for wet or coastal conditions
  • Red maple (Acer rubrum) for seasonal color and adaptability

The Bottom Line

The cajeput tree offers undeniable beauty and practical benefits for the right garden situation. Its striking appearance, pollinator value, and low-maintenance nature make it appealing to many gardeners. However, as with any non-native species, it’s worth weighing these benefits against the potential advantages of choosing native alternatives that might offer similar aesthetic appeal while providing greater ecological value to your local environment.

Whether you choose to plant a cajeput tree or explore native options, the key is selecting plants that thrive in your specific conditions while contributing positively to your garden’s overall health and beauty.

Cajeput Tree

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

Melaleuca L. - melaleuca

Species

Melaleuca linariifolia Sm. - cajeput tree

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