Periwinkle (Vinca): The Hardy Ground Cover for Shady Spots
Periwinkle (Vinca minor and Vinca major) is one of the most reliable, time-tested ground covers for shady and partly shaded areas. With its glossy, evergreen leaves and delicate blue, violet, or white flowers from April to June, it is a valuable addition to any garden. Once established, periwinkle forms dense, weed-free carpets.
Lesser Periwinkle vs. Greater Periwinkle
| Feature | Vinca minor (lesser) | Vinca major (greater) |
|---|---|---|
| Height | 10โ15 cm (4โ6 in) | 20โ30 cm (8โ12 in) |
| Flower size | 2โ3 cm (about 1 in) | 3โ5 cm (1โ2 in) |
| Winter hardiness | Excellent (down to -25 ยฐC / -13 ยฐF) | Moderate (down to -15 ยฐC / 5 ยฐF) |
| Vigor | Moderate, easy to control | Strong, can spread aggressively |
Location and Planting
Periwinkle is the perfect choice for shady to partly shaded areas under trees and shrubs, on north-facing sides, or on shaded slopes. The soil should be humus-rich, loose, and evenly moist. In overly dry spots the plant will struggle. Plant periwinkle in spring or fall, spacing plants 20โ25 cm (8โ10 in) apart for Vinca minor or 30โ40 cm (12โ16 in) for Vinca major. For quick ground coverage, plan on 6โ8 plants per square meter.
Care โ Minimal and Effective
Periwinkle is extremely low-maintenance. Water only during prolonged dry spells. A light application of compost in spring encourages growth and flowering. Pruning isn’t necessary but can be done in spring if desired โ simply trim the area with hedge shears or a lawn mower set to a high setting; periwinkle will reliably grow back.
Keeping Vigorous Growth in Check
Greater periwinkle (Vinca major) in particular can get out of hand over time. Use a spade to cut back any runners spreading beyond the intended area. In small gardens or alongside delicate perennials, lesser periwinkle is the better choice โ it is easier to control and will not overwhelm its neighbors.
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