Common Blue Violet

Scientific Name: Viola sororia

Plant Family: Violaceae

Native Region: Central and Eastern North America

Common Blue Violet

Brief Description

A low-growing herbaceous perennial featuring heart-shaped, scalloped leaves that grow in a basal rosette. It is known for its five-petaled purple or blue flowers.

Care Instructions

This is a hardy plant that thrives in moist, well-draining soil with partial shade. Minimal maintenance is required as it naturalizes easily. Fertilizer is generally unnecessary.

Medicinal Value

We do not currently provide medicinal value for plant identifications.

Sunlight

Full sun to partial shade; prefers filtered sunlight or 3-6 hours of daily sun.

Watering

Consistent moisture is preferred. It is moderately drought-tolerant once established but leaves may wilt or go dormant in extreme heat without water.

Soil

Rich, moist, well-drained loamy soil; pH range 6.0 to 7.5.

Hardiness Zone

USDA Zones 3-9

Growth Habit

Perennial; clump-forming basal rosette; grows 4-8 inches tall and spreads 6-12 inches wide; moderate to fast growth rate.

Bloom Season

Early to mid-spring; flowers are typically violet to deep blue with white throats, though white and speckled varieties exist.

Toxicity

Generally non-toxic to humans and common pets (dogs/cats) when leaves or flowers are consumed in small amounts, but the roots and seeds can cause stomach upset or vomiting.

Propagation

Propagates via seed (including self-seeding via cleistogamous flowers) and by division of the thick rhizomes in spring or fall.

Common Pests & Issues

Generally pest-resistant but can be affected by spider mites in dry conditions or leaf spot in overly wet environments. Often considered a 'weed' in manicured lawns.

Similar Species

Viola cucullata (Marsh Blue Violet) which prefers wetter soils, and Viola odorata (Sweet Violet) which is fragrant and native to Europe.

Interesting Facts

Violets produce two types of flowers: the showy purple ones in spring and small, petal-less 'cleistogamous' flowers near the ground that self-pollinate without opening.

Created At: 2026-06-20T14:13:09.165419