PlantFiles: Manchurian Violet, Sumire
Viola mandshurica 'Fuji Dawn'

Bluestone Perennials list this as hardy to Zone 6. I'm in Zone 5b and this plant just overwintered in an open, wet clay location. Color me shocked! Not so much the zone as the location. I'd suggest updating the zone hardiness to at least match Bluestone's rating, along with my personal success here.
Yes, it does reseed prolifically, both all summer long and I've got new seedlings coming up around the main plant this spring a well. But I couldn't believe the blooms I had even before the foliage was very far out of the ground.

Offered by SSE. They remark on the variegation: "Emerges in early spring with pink-tinged, variegated foliage. Variegation slowly turns to green and white, then later to uniform dark green, more intense the second season."

I just bought it ..... so I don't know anything else but That zone rating is wrong.... It is hardy to at least zone 6....... I've seen it sold alot around here (zone 6/7) as a hardy perennial and all reports say its much hardier....

Small growing perennial cultivar Viola.

Has broadly lance shaped leaves variegated with cream with a slight pink flush. Bears small blue to blue violet flowers.

Flowers mainly April - June

Enjoys a well drained position in sun or shade but needs shade during the hottest part of the day or in warm climates. Keep the area free from tall weeds that might out compete it, variegated plants are often weaker when faced with challenges.

Don't expect this one to always come true from shop bought or garden collected seed, some seedlings will be mid green leaved and offspring could be plain even from a much marbled parent.