Purple Crowberry (Empetrum atropurpureum)
At a glance
- Lifecycle
- Perennial (hardy)
- Exposure
- Full sun
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. A calcifuge plant, it is easily grown in a lime-free soil. Dioecious. Male and female plants must be grown if seed is required.
Propagation
Seed - best sown as soon as it is ripe in a cold frame. The seed can be very slow to germinate, stored seed requires 5 months warm then 3 months cold stratification at 5°c. 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, 3cm with a heel, July/August in a frame. Takes 3 weeks. Good percentage. Cuttings of mature wood of the current year's growth, 3cm with a heel, October in a frame. Requires shade. Good percentage.
Edible uses
Fruit - raw or cooked.
Material uses
Succeeds as a ground cover plant in exposed positions.
Habitat
Granitic or acidic gravel and sands on mountains.
Native range
Eastern N. America - Labrador to Quebec, south to Michigan.