Vinca major and Vinca fry are evergreen plants that are at home in the woodland or ghost garden . They are almost identical , but Vinca John Roy Major is often call slap-up periwinkle and the smaller version is sell as common , or midget , periwinkle . Both have attractive leafage and can be unyielding plant , despite their elegant appearance .
Description
Both Vinca major and Vinca minor have long stem with bright , oval , dark green leaves . Vinca major ’s leaves grow up to 3 inches long , while minor ’s leaves will raise 1 to 1 1/2 inches long . The leave-taking of both plant grow in pairs along crawl fore and make a thickset , effectual priming coat cover .
There are two types of stems : rooting stems and stanch that produce blooms . The rooting halt produce only leaves and will steady down wherever the stem touches the background . The bloom stem produce simple , low-spirited bloom .
Both diverseness bloom best in spring , but will produce sporadic bloom throughout the summer and often have a second kick of blooms in nerveless fall weather . They produce fewer heyday when planted in bass shade .
Cultivars
Vinca minor " Atropurpurea " has the same form as vulgar Vinca minor , but the flowers are ruby red . Vinca minor " Alba " produces whitened flowers . Leaf color also has variety . Vinca minor " Aureovaiegata " has scant blue flower , but white-livered and green leaf , while " Argenteovariegata " has leaves that are clean , grizzly and green . Vinca underage " La Grave " will form clumps and has the same bright blue flowers of the dwarf cayenne jasmine . Vinca major " Variegata " is a popular variety of greater Cape periwinkle , with dark-green and white leaves .
Requirements
Both mixture prefer productive , dampish soil , but they will do well in modal soil with moderate water . They accommodate easily to many conditions and will acquire in full sunlight as well as in deep tint . However , in arena with hot summers , Vinca should be planted in fond wraith . An established Vinca needs only the episodic trimming to keep the creep , rooting stem under control . They are not bothered by many pesterer .
Uses
Vinca minor will grow well in most climates and is a dense ground cover for refinement where other flat coat covers fail to boom . It also is effective on slopes , where its root staunch will prevent erosion . Vinca minor convey light base dealings , and twist its way around stepping stones . It can cascade over a bench or retaining wall . Vinca John Roy Major is also effectual in these situations , but may be more trespassing in shaded areas . Its base also be given to grow upright before trailing outward , create a mound effect .
Caution
Both mixed bag are invasive under the correct condition . In shaded , moist areas with rich filth , Vinca major and Vinca minor will spread smartly , sending rooting stem around or through other plants . These stems are not bother by root barriers and will quickly take over an entire planting seam . The stems can also reach across narrow borders or butt , creeping into lawn or neighboring garden . Periwinkle should be plant where wide barriers , such as private road and sidewalk , will forestall their cattle ranch . Some state have listed Vinca major as an incursive locoweed . Tennessee lists both as invasive .
References
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