Common name: Illyarrie

Family: MYRTACEAE

Eucalyptus erythrocorys in blossom. Photo: D. Blumer.View image slideshow

Description

The Illyarrie is a medium tree to eight metres that is ideally suited to coastal conditions, originating from coastal regions north of Perth Western Australia. It begins flowering in midsummer, discarding its distinctive red bud cap to reveal spectacular bright yellow flowers up to five centimetres or more in diameter.

The flowers usually occur in groups of four, providing a vivid and breathtaking display. It is highly attractive to birds such as honeyeaters, parrots and red-tailed black cockatoos.

The Illyarrie often grows with an irregular trunk appearing semi-weeping as it matures. It can be heavily laden with large woody fruits and is unofficially regarded as a signature species for the Swan Coastal Plain in Perth.

Horticultural tips

  • Illyarrie is effective when planted in groups or groves, where it can provide a wind break or shade.
  • It can also be grown successfully as an individual specimen in the garden, with understorey plants such as Conostylis candicans and Grevillea preissii subsp. glabrilimba.
  • This tree responds well to pruning and prefers to grow in sandy soils, however can usually adapt to most types of soil.

For more horticultural tips view our Plant Notes section.

View in Kings Park

Visit Kings Park to see the full impact of the stunning yellow flowers and red bud caps around the Eucalyptus Carpark, Roe Gardens, Rio Tinto Naturescape Kings Park and the Kings Park Administration Building (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 erythrocorys flowers. Photo: D. Blumer.Eucalyptus erythrocorys habit. Photo: D. Blumer.

Bold Park burn deferred

The autumn Bold Park research burn has been deferred due to unsuitable weather conditions.

Lightscape setup disruptions

There will be works taking place throughout the Western Australian Botanic Garden from 18 May until 16 June 2023 due to Lightscape setup.

Fraser Circle closure trial

We would like your feedback on the closure of Fraser Circle (located off Fraser Avenue).

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City of Perth E-Scooter Trial Expands through Kings Park

Visitors will be able to hire and ride e-scooters within Kings Park as part of City of Perth’s E-scooter Share Scheme from Saturday 25 March 2023.

Support for Noongar Boodja continues

Fugro has generously renewed their partnership with the Botanic Gardens and Parks Authority (BGPA) to bring another three years of the very popular ‘Noongar Boodja’ education program to Kings Park.

Rare plants stolen from Kings Park

We're devastated to announce up to 900 of WA’s rarest orchids have been stolen from the Conservation Garden in Kings Park.

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