Guide
Vinca Minor: Evergreen Shade Groundcover, With an Invasive Caveat
The short answer
Common periwinkle (Vinca minor) is a low, evergreen trailing groundcover, 3 to 6 inches tall, with glossy dark leaves and blue-lavender flowers in spring. It excels where lawns give up: it grows in deep shade and poor soil, forming a dense weed-suppressing mat by rooting at the nodes of its trailing stems.
The caveat is serious: periwinkle frequently escapes cultivation and is classified as invasive by the NC Invasive Plant Council and flagged on many state lists across the eastern US. If you plant it, confine it to bounded beds away from woods and natural areas — or check whether your state discourages it entirely. To establish, set plugs about 1 foot apart in part shade, mulch, and keep evenly watered the first season.
Where It Works
- Best in light to partial shade; tolerates deep shade and even poor, dry soil.
- Full-sun plantings often show leaf discoloration (NC State Extension).
- Good on shaded slopes and under trees where grass fails, in beds bounded by hardscape.
- Avoid planting at woodland edges, near streams, or anywhere stems can creep into natural areas.
How to Plant It
- 1Space plugs about 1 foot apart — Virginia Cooperative Extension recommends planting groundcover plugs about a foot apart and mulching at transplanting.
- 2Water through the first season — Keep the planting evenly watered the first year to root in the plugs and encourage the trailing stems to root at the nodes and knit into a mat.
- 3Edge it from day one — Install a hard edge or maintain a cut edge; periwinkle spreads aggressively into adjacent lawn and beds.
Care and Problems
Established periwinkle needs almost no routine care — no mowing, minimal feeding. The main disease issue is a fungal stem canker or blight that can damage or kill large patches, usually during prolonged wet, humid weather (Purdue Extension). Improve air flow, avoid overhead irrigation, and remove affected patches.
Vinca major (big leaf periwinkle) is a larger, even more aggressive relative with the same invasive concerns; the same cautions apply.
⚠ Vinca minor is classified as invasive in many eastern US states and escapes into forests, where its dense mats crowd out native plants. Check your state invasive plant list first, and never plant it adjacent to natural areas.
Sources
Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources — and never invent pesticide rates or dangerous treatments.
- North Carolina Extension Gardener Plant Toolbox — Vinca minor — Size (3-6 inches tall), shade tolerance, rooting at nodes, rapid mat formation, full-sun leaf discoloration, and classification as invasive by the NC Invasive Plant Council
- Virginia Cooperative Extension — Common Periwinkle, Vinca minor (3010-1471) — Planting plugs about 1 foot apart, mulching at transplanting, and keeping evenly watered through the first season
- Purdue Extension — Vinca minor: Friend or Foe? — Stem canker/blight risk in prolonged wet periods, aggressive spread into lawns and natural areas, invasive concern in the eastern US