Winter jasmine are vines that add a pretty splash of color in late winter or early spring. Their one inch diameter yellow blooms appear before the leaves emmerge. Winter jasmine can be gown in planting zones 6-10. When unsuppported, they reach four feet in height and about seven feet in width. This makes them perfect for wooden arbors. Winter jasmine can also be used as ground cover. It works really well for landscaping slopes. Be sure to prune your winter jasmine in late spring after they have bloomed.