Information for Viola adunca

B and T World Seeds' reference number: 433119
USDA average, annual, minimum temperature Zone:4
Type of plant - perennial
Flower: PURPLE chubby violets,spur
Foliage: ovate, to 4cm.
Height in meters: 0.1

Common names for Viola adunca: Early Blue Violet,  Hooked-spur Violet,  Western Dog Violet, 

Viola adunca is included in the following B and T World Seeds flowering plant categories:
9:   Alpine and Rock Garden Seed List (Hardy and Tender)
43:   Herbaceous Border Plant Seed List
86:   Natives of U.S.North East
88:   Natives of U.S.North West
94:   Natives of Rocky Mountain Area U.S.A.
96:   Canadian Natives Eastern
97:   Canadian Natives Western and British Colombia
130:   Ground cover Plant Seed List (see also List 133)
161:   Edible Flowers
683:  Violaceae
719:   North American Native Ethnobotanicals

Germination guide
Viola adunca seeds will usually germinate in 14-21 days, even under good conditions germination may be erratic. Normally germinates in the dark. Sow seeds about 2mm deep in a Well drained seed sowing mix at about 22C.

Stratification (cold treatment or vernalization) Some seeds need to be overwintered before they will germinate. Some seeds need just a couple of weeks, others 3 months. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4C or 5C in a refrigerator. The seeds should not be frozen or in a wet medium. Very small seeds can be sown on the surface of their growing medium, in pots sealed in plastic bags, and kept in the 'fridge. Many vernalized seeds need light to germinate when they are sown in the "Spring".

Cold stratify 2 Weeks

SEED GERMINATION THEORY AND PRACTICE; by Professor Norman C. Deno
B & T World Seeds Route des Marchandes, Paguignan, 34210 Aigues-Vives, France
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