Viola Species, Marsh Violet, Mountain Blue Violet, Hookspur Violet, Western Dog Violet

Violaadunca

Family
Violaceae (vy-oh-LAY-see-ee)
Genus
Viola (vy-OH-la)
Species
adunca (AD-un-kuh)
Synonym
Viola bellidifolia
Viola clarkiae
Viola cordulata
Viola demissa
Viola desertorum
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Evergreen
Deciduous
Smooth
Height
under 6 in. (15 cm)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Bloom Color
Blue-Violet
Lavender
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Anchorage, Alaska

Richmond, California

Des Plaines, Illinois

Portland, Oregon(8 reports)

Camas, Washington

Featured Videos

Gardener's Notes:

1
positive
2
neutrals
0
negative
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A
A
Camas, WA | December 2007 | positive

This is the larval host plant for several threatened butterflies in my area (Washington/Oregon). I have a few viola adunca that I grew f...Read More

H
| January 2006 | neutral

Grows as a wildflower in central Alberta, Canada in marshy areas with partial shade. Here, also known as blue marsh violet.

...Read More

B
B
Baa
| January 2003 | neutral

A small perennial Violet from the USA.

Has ovate, mid-deep green, slightly toothed leaves. Bears small, light blue to viol...Read More

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