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Violaceae FAMILY

Viola tricolor

Viola tricolor

Edibility
2/5
Medicinal
3/5

Safety & Hazards

A decoction of the plant has been known to cause dermatitis in some people[1]. 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[2, 3, 4]. The flowers of this species vary widely in colour from white, through yellow to purples and blues[PFAF].

Cultivation Details

HabitAnnual/Perennial
Growth—

Prefers a cool moist well-drained humus-rich soil in partial or dappled shade and protection from scorching winds[5, 6]. Tolerates sandstone and limestone soils but becomes chlorotic if the pH is too high[7]. Prefers a pH between 6 and 6.5[7]. A very variable species[8]. It is normally an annual plant, but it is sometimes a short-lived perennial[9]. A good bee plant[10]. Grows well with rye but dislikes growing with wheat[11]. 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[2, 3, 4]. The flowers of this species vary widely in colour from white, through yellow to purples and blues[PFAF].

Propagation

Seed - best sown in the autumn in a cold frame. Division in the autumn or just after flowering. The plant is a short-lived perennial and division is not that worthwhile. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Viola+tricolor>

Pollinators

Bees, Self

References

  1. [1]BoDD (Botanical Dermatology Database) — http://bodd.cf.ac.uk/ ↩︎Brief notes on a very wide range of plants that have reports of causing harm to the skin.
  2. [2]A Field Guide to N. American Edible Wild Plants. — Elias. T. and Dykeman. P. · Van Nostrand Reinhold · 1982 · ISBN 0442222009 ↩︎Very readable.
  3. [3]Edible Native Plants of the Rocky Mountains. — Harrington. H. D. · University of New Mexico Press · 1967 · ISBN 0-8623-0343-9 ↩︎A superb book. Very readable, it gives the results of the authors experiments with native edible plants.
  4. [4]Wild Food Plants of Indiana. — McPherson. A. and S. · Indiana University Press · 1977 · ISBN 0-253-28925-4 ↩︎A nice pocket guide to this region of America.
  5. [5]Shade Plants for Garden and Woodland. — Brown. ↩︎
  6. [6]The Wild Garden. — De. Bray. L. ↩︎Interesting reading.
  7. [7]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  8. [8]A Modern Herbal. — Grieve. · Penguin · 1984 · ISBN 0-14-046-440-9 ↩︎Not so modern (1930's?) but lots of information, mainly temperate plants.
  9. [9]Perennials. Volumes 1 and 2. — Phillips. R. & Rix. M. · Pan Books · 1991 · ISBN 0-330-30936-9 ↩︎Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
  10. [10]Making a Wildlife Garden. — Baines. C. ↩︎Fairly good with lots of ideas about creating wildlife areas in the garden.
  11. [11]Companion Plants. — Philbrick H. and Gregg R. B. · Watkins · 1979 · ISBN - ↩︎Details of beneficial and antagonistic relationships between neighbouring plants.
  12. [12]Flora of China — Missouri Botanical Garden Press; St. Louis. · 1994 · http://flora.huh.harvard.edu/china/ ↩︎An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
  13. [13]Flora of the British Isles. — Clapham, Tutin and Warburg. · Cambridge University Press · 1962 · ISBN - ↩︎A very comprehensive flora, the standard reference book but it has no pictures.
  14. [14]Tanaka's Cyclopedia of Edible Plants of the World. — Tanaka. T. & Nakao S. · Keigaku Publishing; Tokyo · 1976 · ISBN - ↩︎The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
  15. [15]Cornucopia - A Source Book of Edible Plants. — Facciola. S. · Kampong Publications · 1990 · ISBN 0-9628087-0-9 ↩︎Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
  16. [16]The Encyclopedia of Medicinal Plants — Chevallier. A. · Dorling Kindersley. London · 1996 · ISBN 9-780751-303148 ↩︎An excellent guide to over 500 of the more well known medicinal herbs from around the world.
  17. [17]Encyclopaedia of Medicinal Plants. — Chiej. R. · MacDonald · 1984 · ISBN 0-356-10541-5 ↩︎Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
  18. [18]Edible and Medicinal Plants. — Launert. E. · Hamlyn · 1981 · ISBN 0-600-37216-2 ↩︎Covers plants in Europe. a drawing of each plant, quite a bit of interesting information.
  19. [19]Hamlyn Encyclopaedia of Plants. — Triska. Dr. · Hamlyn · 1975 · ISBN 0-600-33545-3 ↩︎Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.
  20. [20]The Herb Book. — Lust. J. · Bantam books · 1983 · ISBN 0-553-23827-2 ↩︎Lots of information tightly crammed into a fairly small book.
  21. [21]Dictionary of Economic Plants. — Uphof. J. C. Th. · Weinheim · 1959 · ISBN - ↩︎An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
  22. [22]The Dictionary of Modern Herbalism. — Mills. S. Y. ↩︎An excellent small herbal.
  23. [23]Homeopathic Materia Medica — William Boericke, M.D. · http://www.homeoint.org/books/boericmm/index.htm ↩︎An on-line version of the book
  24. [24]Nature's Colors - Dyes from Plants. — Grae. I. · MacMillan Publishing Co. New York. · 1974 · ISBN 0-02-544950-8 ↩︎A very good and readable book on dyeing.
  25. [PFAF]Plants for a Future — pfaf.org ↩︎