young sprout of periwinkle in a pot, before flowering on a white background

flora catharanthus vinca genus annual evergreen perennial herbaceous madagascar india sri lanka background flower summer spend nature spring floral garden leaves color colored plant beautiful natural foliage healing periwinkle littorina pervanche bloom grow closeup old maid single unmarried lonely poisonous alkaloid decorative indoor botany asian white pink young sprout pot before flowering background lat plants semi-shrubs kutrovye family