Is the common periwinkle an invasive species?



Common periwinkle prefers shaded, moist conditions such as along water courses and in forested areas. It spreads rapidly via seed, roots, and stems. This species is one of the “top six” invasive species still sold throughout BC – be sure not to purchase or trade this plant!

Why is the periwinkle a problem?

Big periwinkle spreads rapidly, especially in riparian areas, creeks, and drainages. Once it is established, big periwinkle forms a thick ground cover, choking out native plants and changing the ecology of the area.

Is periwinkle native to North America?

Origin: Vinca minor is a native from southern Switzerland southward around much of the Mediterranean basin, from Portugal to Turkey, and across much of north Africa. It has been introduced in the United States as a medicinal herb and as an ornamental ground cover.

How was periwinkle introduced?





about Periwinkle



Periwinkle was introduced to North America in the 1700’s, as an ornamental. This perennial evergreen plant reproduces by stolons and stems rooting at nodes and can form a dense groundcover layer. These characteristics have made it a com- monly sold bedding plant.

How do I get rid of periwinkle?

How: Use a shovel or your hands to pull up the plant and its roots. Dig out roots that break off below the surface of the soil. Any roots left behind can grow into a new plant. Disposal: Do not compost!

How do I stop periwinkle from spreading?

Cut periwinkle plants with pruning shears in late spring or early fall when temperatures are between 70 and 80 degrees Fahrenheit. Use a weed whip for large patches. Spray the cut stems with a ready-to-use, 5-percent glyphosate weedkiller.

Will periwinkle choke out other plants?

Vinca minor, also known as just vinca or periwinkle, is a fast growing, easy groundcover. It’s appealing to gardeners and homeowners needing to cover areas of the yard as an alternative to grass. This creeping plant can be invasive though, choking out native plants.

What is periwinkle good for?





Periwinkle can lower blood pressure. It can also help reduce swelling (inflammation) and have a drying (astringent) effect on the tissues.

What disease does periwinkle cure?

Periwinkle is also used for treating diarrhea, vaginal discharge, throat ailments, tonsillitis, chest pain, high blood pressure, sore throat, intestinal pain and swelling (inflammation), toothache, and water retention (edema).

Is common periwinkle edible?

Since periwinkles are considered an invasive species, there are no regulations on harvesting them. They are small and time-consuming to eat, but they are truly delicious and make the perfect free snack from the sea. To eat them, simply steam them for about 3 to 4 minutes and then toss with some melted butter.

Is periwinkle poisonous to touch?

Periwinkle plants are safe to handle and may not harm when touched; however, wash your hands thoroughly after pruning, cutting, or potting these plants as the toxins might have flowed on your hands.

How quickly does periwinkle spread?

At a 6-inch spacing periwinkle will completely cover an area in one year. Plant whenever the soil is workable and provide sufficient water, especially when planting in summer.



Is periwinkle poisonous to dogs?

Vinca (Catharanthus roseus), commonly referred to as Periwinkle, is an evergreen perennial that blooms in the spring and summer. Popular as a groundcover, Vinca is a favorite choice of gardeners. All parts of Vinca (Catharanthus roseus) are considered poisonous to humans, dogs, cats, and horses.

Will periwinkle take over grass?

Periwinkle, technically known as Vinca minor, is a member of the low-stature type of plants used for ground cover. Another popular name for periwinkle is myrtle. Periwinkle is quick to grow and spread. It does well in places other ground covers, such as grass, will not take hold.

How do you keep periwinkle contained?

Both species have aggressive roots, but greater periwinkle is considered a particularly invasive threat. When using the plants as ground-cover, keep them contained with plastic barrier edging. Otherwise, they may invade other areas of the garden or yard.

Can you walk on periwinkle ground cover?

In fact, the top rated ground covers books declared that foot traffic was not even advisable, stating the plants would never be able to withstand the pressure. Well, we proved them wrong! In fact, we proved that our plants actually grow BETTER when you walk on them!!

What is killing my periwinkles?

Aerial phytophthora is caused by the fungus Phytophthora parasitica and is also known as periwinkle blight. It’s the No. 1 disease problem for annual vinca or periwinkle (Catharanthus roseus) and can persist in the soil for several years.



Why are vincas dying?

Your vinca plant may wilt with too much water or too little



Sometimes vinca plants wilt when they have too much water. Always check the soil dryness to determine if you should give the vinca plant some water.

What does periwinkle look like?

Periwinkle (Vinca minor) is an excellent evergreen groundcover with dark green foliage. Oblong to ovate leaves are opposite, simple, ½ to 2 inches long, glossy, with a short petiole. They exude a milky juice when broken. Flowers are purple, blue or white depending on the cultivar.

Why is periwinkle not flowering?

Make sure the plant is getting some sunlight. The vinca vine grows wonderfully as a groundcover under the bases of trees, but still needs some sunlight to get through to it for part of the day to produce flowers. Thin out or cut back some of the overhead branches to allow some light to get through to your vinca plants.

What is periwinkle good for?

Periwinkle can lower blood pressure. It can also help reduce swelling (inflammation) and have a drying (astringent) effect on the tissues.

Is periwinkle poisonous to dogs?

Vinca (Catharanthus roseus), commonly referred to as Periwinkle, is an evergreen perennial that blooms in the spring and summer. Popular as a groundcover, Vinca is a favorite choice of gardeners. All parts of Vinca (Catharanthus roseus) are considered poisonous to humans, dogs, cats, and horses.