The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Ninebark
Physocarpus opulifolius is a deciduous shrub that can grow up to 3.00 metres tall.
It is harvested from the wild for local use as a medicine..
Large medicinal doses can be toxic[
Central and Eastern N. America - Quebec to South Carolina, west to Alabama, Arkansas and Minnesota.
Banks of streams[
Prefers an acid soil, quickly becoming chlorotic when growing on shallow chalk[
]. Succeeds in a moist moderately fertile soil in full sun[
A very hardy plant, tolerating temperatures down to at least -25°c[
There are many named varieties, selected for their ornamental value[
Flowers are produced on the previous year's growth[
A useful plant for rough shrubberies where plants are more or less left to look after themselves[
A tea made from the inner bark is laxative and emetic[
]. It is used internally to treat women's complaints, gonorrhoea, TB and to enhance fertility[
]. It is also used as a wash on scrofulous glands in the neck[
]. Some caution is advised, this herb is best used only under the supervision of a qualified practitioner. See the notes above on toxicity.
Seed - we do not have any information for this species but suggest sowing the seed as soon as it is ripe if possible in a cold frame. If sown in the spring it is likely to require a period of cold stratification. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Division of suckers in the dormant season.
Cuttings of greenwood, early summer in a closed frame[