Damiana (Turnera diffusa aphrodisiaca)

At a glance

Lifecycle: Perennial (hardy)
Exposure: Full sun
Frost limit: −6.7 °C

Cultivation

Requires a dry soil in a warm sunny sheltered position. One report says that this species is hardy to about -5°c, though this needs to be treated with some caution considering its native range is entirely tropical[K]. It is possible that, whilst the plant will be cut back to the ground by cold weather, the rootstock is hardier and will re-sprout in the spring[K]. It will certainly be worthwhile trying the plant outdoors and giving the roots a thick protective mulch in the autumn[K].

Propagation

Seed - sow spring in a greenhouse. Prick out the seedlings into individual pots once they are large enough to handle and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in early summer and give some protection from winter cold for at least their first winter outdoors. Division in spring or autumn. Cuttings of half-ripe wood, July/August in a frame. Overwinter the young plants in a greenhouse and plant them out in early summer.

Edible uses

The leaves are used as a tea substitute and also as a flavouring in liqueurs.

Medicinal uses

Damiana was a traditional aphrodisiac of the Maya people in Central America. It continues to be considered valuable as an aphrodisiac and general tonic, and its stimulant tonic action makes it a valuable remedy for those suffering from mild depression. The whole plant is a bitter, pungent, warming herb with a fig-like flavour.

Habitat

Dry sandy or rocky places.

Native range

Southern N. America to Northern S. America.