North America Non-native Plant

Long-flower Marlock

Botanical name: Eucalyptus macrandra

USDA symbol: EUMA20

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

Long-Flower Marlock: A Charming Australian Native for Drought-Tolerant Gardens Meet the long-flower marlock (Eucalyptus macrandra), a delightful Australian native that’s making waves in drought-conscious gardening circles. This compact eucalyptus species brings all the charm of its larger cousins but in a more manageable package that won’t take over your entire ...

Long-Flower Marlock: A Charming Australian Native for Drought-Tolerant Gardens

Meet the long-flower marlock (Eucalyptus macrandra), a delightful Australian native that’s making waves in drought-conscious gardening circles. This compact eucalyptus species brings all the charm of its larger cousins but in a more manageable package that won’t take over your entire backyard.

What Makes Long-Flower Marlock Special

The long-flower marlock gets its common name from its distinctive elongated flower buds that create quite the show when they burst open into creamy-yellow blooms. Unlike the towering eucalyptus trees you might picture, this species stays relatively compact as a shrub, making it perfect for smaller spaces and more intimate garden settings.

Where It Calls Home

This eucalyptus is endemic to Western Australia’s wheatbelt region, where it has adapted to thrive in challenging conditions with minimal water and poor soils. In its native habitat, it plays an important role in the local ecosystem, providing nectar for native wildlife.

Garden Appeal and Landscape Role

The long-flower marlock brings several appealing qualities to the garden:

  • Distinctive elongated flower buds that add architectural interest
  • Cream to pale yellow flowers that provide seasonal color
  • Compact growth habit suitable for smaller spaces
  • Attractive silvery-green foliage year-round
  • Excellent drought tolerance once established

This plant works beautifully as a specimen shrub, in Mediterranean-style gardens, or as part of a drought-tolerant landscape design. It’s particularly well-suited for xerophytic gardens where water conservation is a priority.

Growing Conditions and Care

Long-flower marlock is refreshingly low-maintenance once you understand its needs:

  • Sunlight: Full sun exposure for best flowering
  • Soil: Well-draining soil is essential; it tolerates poor soils
  • Water: Drought tolerant once established; avoid overwatering
  • Climate: Best suited to USDA zones 9-11; frost sensitive

Planting and Care Tips

Getting your long-flower marlock off to a good start is straightforward:

  • Plant in spring after the last frost
  • Choose a sunny location with excellent drainage
  • Water regularly during the first year to establish roots
  • Once established, water only during extended dry periods
  • Minimal pruning required; light pruning after flowering if needed
  • Avoid fertilizers high in phosphorus, which can harm eucalyptus species

Wildlife and Pollinator Benefits

The long-flower marlock is a magnet for pollinators, particularly attracting bees and nectar-feeding birds in its native Australia. If you’re gardening outside of Australia, it may still provide nectar for local pollinators, though native plants will typically offer better wildlife support for your local ecosystem.

Should You Plant Long-Flower Marlock?

This charming eucalyptus makes an excellent choice if you’re looking for:

  • A drought-tolerant ornamental shrub
  • Unique architectural interest in your garden
  • Low-maintenance landscaping options
  • Plants suited to Mediterranean or dry climate gardens

However, if you’re gardening outside of Australia, consider exploring native alternatives first that will provide better support for your local wildlife. Many regions have their own drought-tolerant native shrubs that offer similar benefits while supporting local ecosystems.

The Bottom Line

Long-flower marlock offers gardeners a unique opportunity to grow something truly distinctive. Its combination of drought tolerance, ornamental appeal, and compact size makes it a worthy consideration for the right garden setting. Just remember that like all eucalyptus species, it’s adapted to specific conditions, so success depends on matching those needs in your landscape.

Long-flower Marlock

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 macrandra F. Muell. ex Benth. - long-flower marlock

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