Overwatering is a main cause. While a yellowing vinca plant does not necessarily indicate disease, it is possible. Vinca major and minor vines are similar in appearance, differing only in the color of leaves and blossoms. Vinca major - Vinca major is a trailing vine also known as greater periwinkle or big leaf periwinkle and grows up to ten inches tall. The leathery, dark green leaves are arranged in opposite pairs. The leaves grow up to three inches long, twice the size of common periwinkle leaves. Add to Likebox ... #77000881 - Periwinkle plant with green leaves and blue flowers Five-petalled. Leaves are opposite, the upper surface is glossy and there are generally very short hairs along the leaf margins (edges). Versatile ground cover for shady areas. There are several names for periwinkles, including Vinca minor, Vinca major, Magdalena, church-flower, blue buttons, joy on the ground, devil’s eye, sorcerer’s violet, and myrtle. Genus Vinca can be evergreen subshrubs or herbaceous perennials, with simple, paired leaves and solitary, 5-lobed, salver-shaped flowers in the leaf axils Vinca major, also known as big periwinkle, displays trailing vines, glossy green leaves and colorful blooms from spring until the first frost in autumn. This species originates from the Mediterranean and has three and a half inch leaves with two inch flowers. There are many different varieties in the stores, such as the vinca minor Elisa and the vinca minor Marie, which have different colours. However, besides the dwarf periwinkle, the bigleaf periwinkle, the vinca major, can be seen in gardens as well as in parks. There are two types of stems: rooting stems and stems that produce blooms. It is often confused with vinca minor, but it differs from this plant in that the leaves are larger and a paler shade of green. One of the active ingredients in the periwinkle is Vincamine, which has been used in numerous scientific studies for years. Rabbit resistant. Both sorts, however, are not only different in size. on March 1, 2016; in Plant of the week; 3 Comments; Congratulations if you guessed yesterday’s Macro Monday – it was vinca (periwinkle). The gel caps we use are Vegicaps (vegetable) and are all-natural. Its cousins, Vinca major and Vinca minor, are known as greater periwinkle and lesser periwinkle respectively. Though vinca plants are hardy and tolerant of a wide range of growing conditions, it is important that their planting site is well drained. Variegated Vinca major is an evergreen, trailing ground cover. Can spread aggressively into adjacent lawns or garden areas.