Vinca nestling – also called periwinkle – is a perennial evergreen ground natural covering that is popular under trees and shrubs and on sloped areas for erosion ascendancy . It blossom minuscule white , racy or purple flowers in both the spring and the fall . Before planting , till in about 3 column inch of organic matter , such as compost or peat moss , to make the domain more conducive to Vinca minor . Vinca kid is not the same thing as the annual works also called periwinkle and vinca , but have the scientific name Catharanthus roseus .
Step 1
Space Vinca minor 12 to 18 inches apart , which is what most nurseryman do . In two to three years , the Vinca child will wholly cover the planting bed .
Step 2
Alternatively , space Vinca minor 6 inch aside and by the final stage of the first year , the planting bed will be totally track . Planting Vinca minor this closely together will require more pruning in subsequent days than planting the works further aside as describe in stride 1 .
Step 3
plant vinca minor as deep as the container it is presently in . Then , H2O well and tamp down the soil with your men to void any potential melodic phrase pockets , which can stimulate base putrefaction .
Step 4
Mulch in between the industrial plant . This is important to not only keep water supply , but to also keep the grass out . After the Vinca minor fill in the area , you will not need to mulch any more .
Vinca
Spray landscaping spray paint on the solid ground to designate the bound for the periwinkle . Remove the grass and soil from between the two outlines to reveal a trench that measures roughly 9 inch deep and 6 inches wide . Stand the edging upright piano , and accommodate it tight against one side of the deep . The extra 3 in of tallness is barely noticeable but is essential in keeping periwinkle ’s shallow root from spreading across the barrier . This might demand using the razor knife to thin out out a 6 - column inch subdivision of the orotund channel on one piece of edging and inserting an edging coupling to connect that piece of edging with another slice of edging . carry the soil tightly against the edging by walking along the trench . If any plants circularize across the plastic roadblock abut ’s top , pull them up right away , and cut back the plant that grow directly against the edging .