Viola labradorica
Labrador Violet
Taxonomy and growth
Uses
Edible uses
Young leaves and flower buds - raw or cooked[1]. A mild flavour, though the leaves soon become quite tough[K]. The leaves make a very acceptable addition to salads[K]. When added to soup they thicken it in much the same way as okra[8][2]. A tea can be made from the leaves[8].
- Plant part
- Flowers
- Plant part
- Leaves
- Product or use
- Tea
Material uses
A good ground cover plant, fast spreading but slow to thicken up and may need weeding for the first year or so[4]. Plants should be spaced about 30cm apart each way[6].
Ecology and functions
- Ecosystem niche
- Soil surface
Environment
- Range
- North-eastern N. America - Labrador, south to the mountains of Maine, New Hampshire and New York.
- Habitat
- Woods and grassy places[3].
- Light
- full sun
- Shade tolerance
- permanent shade
- Water
- moderate
- Hardiness
- Zone 2+
- Soil textures
- sandy, loamy, clay
- Soil pH
- acid, neutral
- Drainage
- well drained
- Tolerates Nutritionally Poor Soil
- No
- Drought
- intolerant
Propagation
Seed - best sown in the autumn in a cold frame. Sow stored seed in early spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer. Division in the autumn or just after flowering. Larger divisions can be planted out direct into their permanent positions, though we have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring.
Cultivation
Cool moist well-drained humus-rich soil in partial or dappled shade and protection from scorching winds. Succeeds in dense shade[4]. Tolerates sandstone and limestone soils but becomes chlorotic if the pH is too high. Prefers a pH between 6 and 6.5. Hardy to about -25°c[3]. There are some named varieties selected for their ornamental value[5]. All members of this genus have more or less edible leaves and flower buds, though those species with yellow flowers can cause diarrhoea if eaten in large quantities[7][8][2].
References
Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00
McPherson. A. and S. Wild Food Plants of Indiana. Indiana University Press 1977-00-00 ISBN 0-253-28925-4
Phillips. R. & Rix. M. Perennials Volumes 1 and 2. Pan Books 1991-00-00 ISBN 0-330-30936-9
Royal Horticultural Society. Ground Cover Plants. Cassells. 1989-00-00 ISBN 0-304-31089-1
Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5
Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons 1990-00-00 ISBN 0-460-12609-1
Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants. Van Nostrand Reinhold 1982-00-00 ISBN 0442222009
Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press 1967-00-00 ISBN 0-8623-0343-9