Common name: Mottlecah


Eucalyptus macrocarpa, or Mottlecah. Photo: D. Blumer.View image slideshow

Origin of Scientific Name

Eu: meaning well + Calyptos: meaning covered

Macro: meaning large + Carpus: meaning fruit


Eucalyptus macrocarpa, or Mottlecah, is a sprawling mallee endemic to Western Australia and can grow up to 5 metres tall. With smooth, shiny bark that sheds in short ribbons and large ovate grey leaves, Mottlecah is an interesting and beautiful addition to any garden with space for it to spread laterally. It is well known to attract fauna such as nectar-loving honeyeaters.

Flowering from Spring to early Summer, the vibrant red, bristly blooms can be prolific and as large as 100 mm in diameter, boasting the largest sized flowers of all the eucalypts. The flowers are popular with photographers, particularly when the bud cap is retained on partially opened blooms, and the large gum nuts are also a point of interest with their silver, powdery coating. 

Horticultural tips

  • Plant Mottlecah in well-drained soil.
  • Mottlecah is best suited to a Mediterranean type climate with warm and dry summers, and once established it is drought and frost tolerant and can stand exposure to a full sun placement.
  • Profuse flowers may weigh the branches down so it is recommended to prune these branches carefully to avoid breakage.

For more horticultural tips view our Plant Notes section.

View in Kings Park

Visit Kings Park to see the Mottlecah growing in the Western Australian Botanic Garden at the Roe Garden precinct (refer to map).

Want more information?

Refer to the profile for this plant on the Department of Biodiversity, Conservation and Attractions' FloraBase online herbarium.

Eucalyptus macrocarpa flower. Photo: D. Blumer. Mottlecah branches. Photo: D. Blumer. Eucalyptus macrocarpa in Kings Park. Photo: D. Blumer.

Administration car park closure

There will be limited access to the BGPA Administration building and the Kings Park Education and Learning building from Wednesday 15 June 2022 for approximately 8 weeks, due to ongoing Water Corporation works.

Water Corporation works

The Water Corporation is replacing approximately 700 metres of ageing water pipes between Mount Eliza Reservoir and Bellevue Terrace in Kings Park.

Bold Park disruption

Banksia Carpark in Bold Park is currently closed to the public due to stormwater damage.

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The much-loved Kings Park Floral Clock has debuted a whole new look with a modern floral makeover from an exciting artist.

Fire Ecology Burn

Researchers and bushland staff at Kings Park successfully carried out a scientific research burn in a section of Kings Park bushland earlier this month. 

New innovative AR experience launched at Kings Park

A new locally developed augmented reality experience has been launched at Kings Park in time for families to enjoy during these school holidays.

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