Soapbark Tree

Quillaja saponaria

a.k.a. Soap Bark Tree, Quillaia, Killaya

Medium sized ornamental tree grown for its flowers and ethnobotanical properties.

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Uses

The soapbark tree has numerous uses. The tree attracts beneficial insects, including lady bugs, and its planting is often promoted for the home gardener because of this. The tree is also hugely important medicinally and industrially, as its bark contains saponin compounds, a type of soap, which has a number of medicinal properties, as well as uses in the biological research industry. The plant is not directly edible, but was used historically as an anti-inflammatory, and for anti-microbial properties.

Plant Cultivation

Medium sized tree to 25-50ft. The tree is highly drought resistant, although it flowers better with regular water. It is cold tolerant, withstanding temperatures to around 15F. White or yellow flowers form en masse during warm months, followed by multi-lobed, dry fruit. The soapbark tree is also tolerant of poor soils.
Propagation: By seed.

Origin and Distribution

Native to Chile.

Related Species

Related Species


Family: Rosaceae
Couepia polyandra Olosapo
Cydonia oblonga Quince
Eriobotrya japonica Loquat

Fragaria californica

Woodland Strawberry

Fragaria vesca

Alpine Strawberry

Malus pumila

Apple

Prunus lyonii Catalina Island Cherry
Prunus salicifolia Capulin Cherry
Quillaja saponaria Soapbark Tree
Rubus neveus Mysore Raspberry

 

 

 

 








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