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Eucalyptus incrassata
Also called Yellow Mallee, Ridge Fruit Mallee, Mallee Box, Ridge Fruited Mallee
Lerp mallee is a multi-stemmed Australian mallee tree, typically 2 to 5 m tall, grown for shade, screening and erosion control. It needs full sun, drought tolerance and good drainage.
Eucalyptus incrassata, commonly known as the lerp mallee, yellow mallee, ridge fruited mallee or rib fruited mallee, is a species of mallee that is endemic to southern Australia. It has smooth bark, sometimes with rough, ribbony bark near the base, lance-shaped adult leaves, flower buds in groups of seven, creamy white, pale yellow, sometimes pink or red flowers, and cylindrical, barrel-shaped or bell-shaped fruit.
E. incrassata is used as a shade tree, mass planting will offer good screening, good for erosion control or as a windbreak. It is suitable mediterranean and bush style gardens and responds well to coppicing. It is tolerant of both drought and light frost. Able to grow in ordinary soil or enriched soil that is either acidic to alkaline and prefers a position in the full sun. Seeds will germinate in 2 to 6 weeks and it can be grown from cuttings. The tree is susceptible to powdery mildew in the wetter months of winter, it can also be affected by myrtle rust and by dieback.
It is also suitable to produce large amounts of biomass, able to make 10 to 20 metric tons (11 to 22 short tons) per hectare per year. In wheatbelt regions it is also beneficial as the tree will reduce salinity, give shade to stock, act as a windbreak and reduce erosion.
Lerp mallee is often found along sandplains and hillsides and is distributed from the Mid West, through the Wheatbelt and along the south coast in the Great Southern and Goldfields-Esperance regions of Western Australia where it grows in sandy soils. It is also found in the south of South Australia extending into Victoria and New South Wales.
Eucalyptus abdita · Badgingarra Box · Wattle Leaved Peppermint · Powder Bark Wandoo · Woolbernup Mallee · White-mahogany · Lakefield Coolibah · Wellstead Mallee · Eucalyptus aenea · Welcome Hill Gum · Blue-leaf stringybark · Black Gum
Text excerpted from the Wikipedia article Eucalyptus incrassata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
