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Common Dog Violet, Wood Violet
Viola riviniana

Family: Violaceae (vy-oh-LAY-see-ee) (Info)
Genus: Viola (vy-OH-la) (Info)
Species: riviniana (riv-in-ee-AH-nuh) (Info)

Category:

Alpines and Rock Gardens

Perennials

Height:

under 6 in. (15 cm)

6-12 in. (15-30 cm)

Spacing:

9-12 in. (22-30 cm)

12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

Hardiness:

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)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Light Shade

Partial to Full Shade

Danger:

N/A

Bloom Color:

Blue-Violet

Bloom Time:

Late Spring/Early Summer

Mid Summer

Foliage:

Evergreen

Deciduous

Smooth-Textured

Veined

Other details:

May be a noxious weed or invasive

Average Water Needs; Water regularly; do not overwater

Self-sows freely; deadhead if you do not want volunteer seedlings next season

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:

Non-patented

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

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

From seed; direct sow after last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored

Regional

This plant has been said to grow in the following regions:

Eastpointe, Michigan

West Warwick, Rhode Island

Kalama, Washington

Gardeners' Notes:

0
positives
2
neutrals
0
negatives
RatingContent
Neutral

On Feb 23, 2014, coriaceous from ROSLINDALE, MA wrote:

The very popular purple-leafed violet widely sold in North America as the native Viola labradorica is actually a form of the european dog violet, Viola riviniana.

Neutral

On Jan 27, 2003, Baa wrote:

A perennial violet from Europe and North Africa.

Has heart shaped to ovate, toothed, mid-deep green leaves that may be evergreen or deciduous. Bears small, blue-violet flowers with a violet or white spur.

Flowers March - September but mainly in the spring.

Loves a well-drained but moist soil in light to deep shade.

Self sows easily and hybridises freely!