Overview

Virginia blue flag is a Florida native wetland iris with violet-blue spring flowers and upright swordlike leaves. It gives rain gardens and pond edges a clean vertical accent.

Mature Size

Plants normally reach 2 to 3 feet tall and spread through rhizomes into broad clumps.

Light and Water

Full sun to partial shade is suitable. Consistent moisture supports flowering. The plant tolerates shallow seasonal water.

Soil and Drainage

Use moist or wet acidic soil. It performs well at pond margins and in low rain-garden zones.

Care

Remove old flower stalks and brown foliage. Divide thick clumps every few years to maintain vigor and control spread.

Landscape Uses

Use along pond edges, in bioswales, rain gardens, or wet native borders. Avoid dry foundation beds.

Best Planting Time

Fall through early spring is ideal. Keep rhizomes moist during establishment.

Wildlife and Safety

Flowers support pollinators. Rhizomes and foliage may cause illness if eaten.

Florida Resource

Use the UF/IFAS Florida-Friendly Landscaping Plant Guide to compare regional conditions and placement options.