Osmorhiza — 6 species
Botanical species in the genus Osmorhiza recorded in the PlantPeers database.

Osmorhiza aristata
Osmorhiza aristata
Family: Apiaceae
Cultivation
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. A variable species, it is divided into several distinct species by some botanists. The following notes are based on the general needs of the genus.
Full cultivation guide →
Osmorhiza chilensis
Osmorhiza chilensis
Family: Apiaceae
Cultivation
Succeeds in any deep moisture-retentive soil in sun or dappled shade. Plants are hardy to about -20°c. Well suited to naturalistic plantings in a woodland or wild garden.
Full cultivation guide →
Osmorhiza claytonii
Osmorhiza claytonii
Family: Apiaceae
Cultivation
Succeeds in any deep moisture-retentive soil in sun or dappled shade. Plants are hardy to about -20°c. Well suited to naturalistic plantings in a woodland or wild garden.
Full cultivation guide →
Osmorhiza longistylis
Osmorhiza longistylis
Family: Apiaceae
Cultivation
Succeeds in any deep moisture-retentive soil in sun or dappled shade. Plants are hardy to about -20°c. Well suited to naturalistic plantings in a woodland or wild garden.
Full cultivation guide →
Osmorhiza obtusa
Osmorhiza obtusa
Family: Apiaceae
Cultivation
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. The following notes are based on the general needs of the genus. Succeeds in any deep moisture-retentive soil in sun or dappled shade.
Full cultivation guide →
Osmorhiza occidentalis
Osmorhiza occidentalis
Family: Apiaceae
Cultivation
Succeeds in any deep moisture-retentive soil in sun or dappled shade. Plants are hardy to about -20°c. Well suited to naturalistic plantings in a woodland or wild garden.
Full cultivation guide →