Periwinkle, also known as Vinca or creeping myrtle, is one of the easiest to grow ground covers or trailing plants. However, its tendency to root at the internodes where stems touch the ground can make it an invasive competitor to other plants.Accordingly, is Periwinkle an invasive species?
Invasive Species: Vinca minor, Common Periwinkle. Common periwinkle, a common invader throughout most of the United States, is an evergreen to semievergreen trailing vine that reaches up to 6.6 ft. Vines can reach a height of 6 in.
Secondly, how quickly does periwinkle spread? Periwinkle grows 3 to 6 inches tall and 2 feet wide. Space plants at least 12 to 18 inches apart. Plant out periwinkle in spring or early fall. Water the soil deeply after planting and keep the soil evenly moist during the first 6 to 10 weeks, as the roots become established.
Similarly, 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.
Is periwinkle ground cover a perennial?
Common periwinkle is an evergreen perennial ground cover that displays glossy, deep green opposite foliage. This plant is prized for its 1/2-inch diameter, spiral, five-petaled flowers in a pale blue-violet hue.
Will periwinkle take over grass?
Growing Conditions Once established, the vines' broad leaves shade blades of lawn grasses, especially those kept under 2 inches tall, as they form colonies across lawns. By shading and competing successfully for moisture, periwinkle strangles less drought- and shade-tolerant grasses.Does Vinca choke other plants?
Vinca minor, in most cases, will not choke out other plants growing in the area. They just fill in around them. Vinca major, being more aggressive, can take over other plants in your flower bed.Is Periwinkle poisonous to humans?
Periwinkle. Periwinkle (Vinca major and Vinca minor) is a mildly poisonous plant. Vinca has been used to treat high blood pressure and control excessive bleeding, but overdose results in hypotension (low blood pressure), which can cause collapse.Can you walk on Periwinkle?
Periwinkle (Vinca minor) [VIN-kah MY-nor] It is tolerant of sun, but prefers partial shade and can turn yellowish when exposed to the hottest summer sun. It's durable -- you can walk on it. Vinca are somewhat invasive -- spreading into adjacent lawns or garden areas and beyond -- and can be challenging to eradicate.Is periwinkle a vine?
Vinca minor vines stay short, sprawling out over the ground. They typically stand only 3 to 6 inches off the ground, but their trailing stems can reach 18 inches in length. Vinca minor vines most commonly put out a blue flower in spring, but the color can also be lavender, purple, or white.Does periwinkle like full sun?
Light Requirements. Both greater and lesser periwinkle will grow in full sun, but they prefer some shade. Vinca major prefers to grow in partial shade but will even tolerate deep shade. The light conditions in which vinca grows, however, affect the performance of the plant.Is Periwinkle the same as vinca?
Periwinkle is the common name for this pretty plant that belongs to the dogbane or Apocynaceae family. The common, sun-loving vinca has the genus name catharanthus. Vinca major and vinca minor are shade-loving ground covers, and vinca vine is a trailer with variegated leaves often used in window boxes and containers.What can I plant with periwinkle?
Myrtle, Also Called Vinca or Periwinkle Spring and early fall are considered the best times to plant myrtle. It prospers in dappled sunlight but will also grow in full sun and even in dense shade. Use it instead of mulch under trees and shrubs to control weeds, or plant it in difficult-to-mow areas.What is periwinkle good for?
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).How deep are periwinkle roots?
Dig holes 3 to 4 inches deep and wide with a hand trowel. Space the holes 12 to 18 inches apart so that the area will fill in with periwinkles by the end of the growing season. Place the roots in the hole spreading them downward and outward.How do I get rid of periwinkle ground cover?
Remove Periwinkle Ground Cover Manually Make a two-foot trench around the area and loosen the first section of roots. Pull as you dig further into the bed, loosening the soil as you go. The next season, if you see any small plants forming, immediately dig them out.How do I get rid of invasive ground cover?
Spray only the invasive ground cover base and root with a systemic nonselective herbicide. These types of herbicides will travel into the roots of the ground cover to kill the entire plant system. Pull the root system from the soil with a garden spade after the plant has died. Place the dead plant into the garbage bag.Do you cut back periwinkle in the fall?
Shear periwinkles back to about six inches tall in again in late summer if the plants become overgrown or untidy. Do not prune periwinkles during the fall or winter, as pruning produces flushes of tender new shoots that are easily damaged by cold temperatures.When can you cut periwinkle back?
When to Prune Prune creeping vinca in the winter or very early spring for the best results. Avoid pruning vinca minor during May and June while it's in bloom to keep from losing the colorful blossoms before they die a natural death.What will kill Periwinkle?
Using chemical weed killer will kill the periwinkle. However, if you are not careful, the weed killer will also damage nearby vegetation. If you use chemical weed killer, do so on a calm day when there is no chance of rain.How do you spread Periwinkle?
Spread a 1- to 2-inch-thick layer of mulch between the plants to deter weeds, and help keep the soil moist and cool. Leave a 1-inch space between the mulch and the base of the periwinkle plants to allow any excess moisture in the soil to evaporate.Does mulch kill ground cover?
Ground cover plants spread to cover all available soil, making them difficult to remove from established flower beds. Killing it with mulch can smother other plants, and digging it out risks damaging desired plants' roots. 
