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Viola tricolor

Family: violaceae
Common name(s): johnny-jump-up
Hardiness ratings: USDA zone 2~4 - 8~9

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Viola tricolor

• BBC Gardening - Plant profile with horticultural details and garden uses. (1 photo)
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 2b-9) (35 photos)
• Garden.org - Community-assembled plant profile (2 varieties in database) (33 photos)
• Heritage Perennials: Viola tricolor Twilight - Profile with description and horticultural details. (additional pages for other varieties) (zone 2-9) (1 photo)
• Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (3 photos)
• Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (3 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 2-9a) (12 photos)
• Paghat's Garden: Viola tricolor 'Helen Mount' - Illustrated articles by a gardener in the Pacific Northwest, with background and personal observations. (2 photos)
• Rainy Side Gardeners - Plant profile compiled by two gardeners in the Pacific Northwest. Includes propagation and pruning methods, and commentary. (zone 4-8) (1 photo)

Viola tricolor subsp. curtisii

Links

• Garden.org - Community-assembled plant profile (8 photos)