Common Periwinkle is one of the most reliable and widely used ground covers, prized for its evergreen foliage and delicate lavender-blue flowers that bloom from late spring through summer. This low-growing perennial spreads via trailing stems that root at the nodes, quickly establishing dense mats 3 to 6 inches tall across areas up to 18 inches wide. Hardy in zones 4 through 8, it thrives in full sun to partial shade and even tolerates heavy shade, making it an extraordinarily flexible choice for difficult garden spots. Its trailing stems with smooth, dark green leaves and phlox-like flowers create an attractive, naturalized appearance that improves with age.
Partial Sun
Moderate
4-8
6in H x 18in W
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Moderate
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The trailing stems root as they spread, creating a self-propagating carpet that fills in quickly without requiring replanting. Evergreen foliage persists year-round, providing winter structure in colder climates. Those lavender-blue flowers appear in spring and continue intermittently through summer into fall, offering months of quiet color. The plant tolerates shade so deep that many other ground covers struggle, and it handles drought, shallow rocky soil, and erosion with equal grace.
Common Periwinkle is grown primarily as a ground cover for slopes, shaded areas, and difficult-to-maintain spots where lawn grasses fail. It naturalizes well in woodland settings and beneath trees, where its ability to thrive in heavy shade becomes invaluable. The evergreen foliage makes it useful for year-round coverage, while the spring and early summer flowers add seasonal interest without requiring deadheading or constant attention.
No timeline data available yet for this variety.
Plant in spring or fall when soil is workable. Space transplants 8 inches apart for quick coverage or 12 to 18 inches apart for large-scale plantings; trailing stems will root and fill gaps within the first season.
Common Periwinkle requires minimal pruning. Trim back aggressively spreading stems if the plant begins to encroach on adjacent lawns or garden areas, as it can spread aggressively beyond its intended boundaries. Otherwise, allow the natural mounding growth habit to develop; foliage typically reaches 6 inches tall without intervention.
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