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Quillaja saponaria Soap-bark tree Evergreen tree (1 Page of 5) The Quillaja saponaria plant species is found in S. America - Chile, Peru. It is a member of the Rosaceae family. Common gardeners may know the plant as Soap-bark tree. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Quillaja saponaria Common Name: Soap-bark tree Family: Rosaceae Author: Molina. Known Hazards: The plant is toxic if taken internally, tending to dissolve the blood corpuscles[171].
The bark, and possibly other parts of the plant, contains saponins[4]. Although toxic, saponins are very poorly absorbed by the body and so tend to pass through without causing harm, they are also destroyed by thorough cooking. Saponins are found in many plants, including several that are often used for food, such as certain beans. It is advisible not to eat large quantities of food that contain saponins. Saponins are much more toxic to some creatures, such as fish, and hunting tribes have traditionally put large quantities of them in streams, lakes etc in order to stupefy or kill the fish[K]. Mature Height: 18 Mature Width: 6 Habitat: Mountainous regions on the western slopes of the Andes[169, 171].
Cultivation Notes: Requires a well-drained fertile soil in a sunny position[200].
Plants are hardy to about -12°c in their natural range in South America[166] but they usually require greenhouse protection in Britain[1]. They can succeed outdoors in the milder areas of this country, often as small shrubs but making a tree in the very mildest areas[166]. The young growth in spring can be damaged by late frosts, so it is best to site the plant in a position sheltered from the early morning sun.
This species is cultivated for the saponins in its bark in some warm temperate areas of the world[238].
For further Quillaja saponaria gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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