Herb: Frostweed

Latin name: Helianthemum canadense

Family: Cistaceae (Rock-rose Family)

Medicinal use of Frostweed:

The dried leaves are alterative, antiscrofulatic, astringent and tonic. A tea made from the leaves is used in the treatment of kidney ailments and sore throats. A strong leaf tea has been used in the treatment of scrofula. It is applied externally to skin diseases and eye infections. It is said that an oil helpful in the treatment of cancer has been obtained from the plant. Some caution is advised since an overdose can cause nausea and vomiting.

Description of the plant:


35 cm
(1 foot)

May to

Habitat of the herb:

Open woods, clearings and barrens in dry sandy soils

Propagation of Frostweed:

Seed - sow spring in a greenhouse. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Cuttings of half-ripe wood, 6 - 8cm with a heel, late summer in a sandy soil in a frame.

Cultivation of the herb:

Open woods, clearings and barrens in dry sandy soils

Known hazards of Helianthemum canadense:

None known

Plant information taken from the Plants For A Future.