Leave no ground uncovered with the mighty periwinkle! This vigorous trailing plant can easily tackle any tricky shady situation and happily cover your planting space. With its glossy evergreen leaves and cheerful blue star-like flowers, it can really brighten up a shady corner in your garden.
It seems like every garden has that tricky dark corner where no grass will grow and where perennials fizzle out. Enter periwinkle. This tough-as-nails shade lover seems to look more and more lush, year after year, without needing much care. With its vigorous sprawling habit, periwinkle can easily colonize any area. In some places, that can be a problem. In more harsh northern climates, periwinkle is not quite invasive, but in places like California with mild climates, these plants can quickly take over a garden. No matter where you are, it's best to stay on top of them to keep them in bounds.
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As periwinkle grows, it has a knack for laying down roots wherever its stems come in contact with soil. This makes them a great option for preventing weeds from growing between their dense mats of foliage. However, it also means these plants can spread indefinitely. As long as you catch them early, they are easy enough to pull up as they spread, and they certainly don't mind a good haircut every now and then. Cutting the plants back also encourages new growth, which is much brighter and shinier than the old leaves and offers a nice spot of color in dark areas. Periwinkle works well as a rock garden plant, too!
Periwinkle Care Must-Knows
Overall, these plants are pretty tough and grow in almost any situation, but ideally, soil conditions are humus-rich and evenly moist. They'll grow just fine in poor soil that dries out a bit, too, but maybe not as vigorously. These plants prefer dappled sun, but they'll take what they can get and grow in anything from full sun to full shade.
Minor or Major
Most commonly, the periwinkle you will find in a garden center is Vinca minor. This is the hardier and smaller plant of the two main species—minor in Latin simply means smaller. The other species commonly found is Vinca major. As you may guess, major means bigger. Vinca major is an overall larger plant, with bigger leaves, flowers, and habit. However, Vinca major is less hardy and is, therefore, less often seen, especially in northern climates, or it is treated as an annual.