Sweet violet is a perennial plant known for its fragrant purple flowers. It is used ornamentally and for its edible and medicinal properties. Inputs Hardiness zone 41 Hardiness zone 51 Hardiness zone 61 Hardiness zone 71 Hardiness zone 81 Outputs Human food2 Medicinal use1 Type Perennial1 Evergreen1 Footnotes Viola odorata | Plants for a Future ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 Gaia’s Garden - A Guide to Home-Scale Permaculture, 2nd Edition Table 10-1 ↩