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.

Naturescape summer opening hours

Rio Tinto Naturescape Kings Park will be open between 8.30 am - 12.30 pm, Tuesdays - Sundays between 29 December 2021 – 30 January 2022 in response to warming Perth summers and an increased frequency of very high fire danger days.

Works at Mount Eliza Reservoir

The Water Corporation will be conducting upgrade works to the Mount Eliza Reservoir inlet in Kings Park from mid-June.

Concert traffic interruptions

Road and carpark closures will occur in Kings Park and Botanic Garden on 11 December 2021 due to a concert event.

Read all notices ...

'For People & Plants' Special Issue

Stories of ecosystem restoration success are showcased in the latest Special Issue of the Friends of Kings Park magazine 'For People & Plants'.

Bold Park Draft Management Plan consultation

The Botanic Gardens and Parks Authority is seeking community feedback on the Draft Bold Park Management Plan 2022 - 2027 that will guide park management over the next five years. 

Bushland Ecology programs in Bold Park

Duncraig Senior High School biology students were among the first to take part in new E-STEM conservation programs at the WA Ecology Centre in Bold Park last month.

Read all news ...

Read about weather and warnings ...

All events …