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Common Periwinkle(8 of 12)

Gardener's Note: Common Periwinkle can be invasive in warmer climates.

- An evergreen spreading groundcover with blue flowers from spring to summer.
- Plant in full sun to moderate shade.
- Can be invasive.
- Plant in moderately fertile, moist but well-drained soil.
- Water regularly until established; prune to keep in bounds in early spring.
- Height: 4-8 inches
- Width: to infinity
- Hardy in zones 4-9

Zone 4: Plant in spring; plant in full sun to light shade. Mulch after first frost to prevent winter heaving. Remove mulch in spring and avoid exposure to salt. May suffer some foliage damage in extreme cold weather.

Zone 5: Plant in spring; plant in full sun to light shade. Mulch after first frost to prevent winter heaving. Remove mulch in spring and avoid exposure to salt.

Zone 6: Plant in spring or early fall; plant in full sun to partial shade. Prune hard in early spring to keep in bounds.

Zones 7-8: Plant in spring or early fall; plant in light to partial shade. Prune hard in early spring to keep in bounds.

Zone 9: Plant in spring or early fall; plant in light to moderate shade. Prune hard in early spring to keep in bounds.