Viola sororia

Common Name(s):
Dooryard violet
Flowering Time:
April to June
Fruit/Seed Maturation Sign:
Seeds turn black (must open a few capsules to check)
Fruit/Seed Collection Dates:
Late June, early July
Seed Cleaning:
remove seeds from capsule
Dry storage might be tolerated, though Cullina (2000) reports this species as intolerant of dry storage
Restoration Potential:

Of 240 seeds planted in a central Iowa demographic study, 76 (31.7%) germinated and 12 plants survivied to year 5; 11 flowered after an average of 4 years (Mabry 2023). These grew into spreading local populations, where individual survival could no longer be measured (Mabry 2023).

Seed output 25-100/plant; vegetative spread low (Barkely 1986, Gleason and Cronquist 1991).

Readily self-sows, leading to rapid spread once introduced (Mabry, personal observation)

Dooryard violet (Viola sororia)