Broadway Arboretum

Species Information Page

Alyogyne huegelii Lilac Hibiscus


Location in Arboretum: Northern sandplains
No on Map:

Map loads from Florabase

  • The specific name huegelii is in honour of Baron Karl Alexander von Hügel, a 19th century Austrian botanist (1).
  • Alyogyne huegelii is a variable species. Florabase lists three varietal forms (1).
  • Alyogyne huegelii is in cultivation, primarily in Australia and the south western United States of America, but also in Europe, where it is grown as a conservatory plant (1).
  • The Lilac Hibiscus is one of the live-fast die young plants but put on a stunning display for about 6 years. (from Sabrina's Little ABC Book of Gardening by Sabrina Hahn). It is usually short-lived, living for about 10 years.
  • Tends to become a little sparse of foliage on lower limbs if left completely unpruned. After the main flowering flush in late spring the shrub can be pruned back quite hard. This species has the desirable ability to throw out vigorous, fast-growing shoots from old wood, thus enabling it to be kept down to a small compact shrub if desired (2).
  • The species belongs to the Malvaceae family and as such has one characteristic common to that family: the flowers open in the morning and last one day (though another website says flowers last for 1-2 days (See 4)). Even so, the shrub is capable of producing hundreds of blooms per season (3).
  • Lilac Hibiscus is one of a group of plants classified as fire ephemerals which are short-lived plants that primarily germinate after fire. Soil burial of seeds can alter the dormancy status of a number of Australian fire ephemeral seeds, making them more responsive to germination cues such as smoke water and heat. The requirement for a period of burial before seeds become responsive to smoke and/or heat would ensure that seeds persist in the soil until a subsequent fire, when there is an increase in nutrients available for growth and reduced competition from other plants. Burial improved germination in response to a heat treatment of Alyogyne huegelii seeds (5) (6).