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Pollinate Happiness
Native to the Northeast, the Mid-Atlantic, the Southeast, and beyond

Common blue violet

Viola sororia

The lawn weed that is actually the sole host plant of fritillary butterflies; let it be.

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Scale and context

One plant, several views

Plant 4–8 in. Flowers ¾ in. These photos are all one individual, photographed in Missouri, US in April 2024, so you can see how a close-up relates to the whole plant.

Who it feeds

The sole host plants of the great spangled fritillary and other fritillary butterflies, whose caterpillars feed at night on violet leaves. Mining bees pollinate the spring flowers; a specialist bee, Andrena violae, depends on them.

Host plant for: Great spangled fritillary and other fritillaries.

What it does for the place

A native lawn plant that stays green through drought, feeds fritillaries, and tolerates mowing. Letting it be is the easiest butterfly conservation there is.

The story

The state flower of New Jersey, Rhode Island, Illinois, and Wisconsin, and the lawn weed people spend money killing. Violets have been eaten, candied, and made into syrup since ancient Greece.

Worth knowing

  • Violets also produce hidden, self-pollinating flowers underground in summer.
  • The leaves and flowers are edible and high in vitamin C.
  • Ants carry the seeds away for the oily attachment, planting them.

Saving its seed

Ripe: May, Jun, Jul. Capsules split into three boats and shoot seed.

Collect: Just let it self-sow; it does not need help.

Sow: Rarely grown from seed; divide or take cuttings instead. Needs about 60 days of cold-moist stratification. Move plants by division in spring.

Seed saving calendar for your zip code →

Sources and further reading