Viola ocellata (western heart's ease)

Plate 1 figs. a–g

Viola ocellata, photographed by joergmlpts — fig. a joergmlpts, CC BY 4.0 / 2022-05-19 / obs. 198975007

Viola ocellata, photographed by rappman — fig. b rappman, CC BY 4.0 / obs. 202065208

Viola ocellata, photographed by Drew Meyer — fig. c Drew Meyer, CC0 1.0 / obs. 200931394

Viola ocellata, photographed by Amelia Tauber — fig. e Amelia Tauber, CC BY 4.0 / obs. 199032927

Viola ocellata, photographed by Nicholas Wei — fig. f Nicholas Wei, CC BY-SA 4.0 / obs. 193440152

Viola ocellata, photographed by P Holroyd — fig. g P Holroyd, CC BY 4.0 / obs. 191464566

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 665 observations

192

222

Flowering observations of Viola ocellata by month
Month	Observations
Jan	13
Feb	48
Mar	80
Apr	192
May	222
Jun	96
Jul	7
Aug	4
Sep	0
Oct	1
Nov	1
Dec	1

Peak flowering in May, from 665 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.