As its Latin name implies, it is evergreen. It is a twining vine and it grows a great many feet in all directions from its central growing point. Often, it grows up and over the adjacent vegetation, and can climb quite high into the canopy of trees. In more xeric conditions, it sometimes grows more like a ground cover. The elliptical leaves are opposite each other on the stem.
Blooming occurs in late winter to early spring, though it is sometimes possible to see flowers at other times of the year. They are a bright canary yellow and highly fragrant. It is often easy to detect the presence of yellow jessamne well before it is seen. The flowers attract a wide variety of pollinators, including hummingbirds. The pollinated flowers ripen to dry seed capsules. The seeds have a prominent wing along the outer edge, a feature not present in its close cousin, swamp jessamine.
Yellow jessamine is widely propagated and normally easy to locate from commercial sources, even ones that don't specialize in native plants. It is quite adaptable and will tolerate a wide variety of sites as long as it is not kept too wet. As a vine, it will tolerate shade if allowed to grow up into the canopy of nearby trees. It also does well in full sun. I believe that yellow jessamine is best used on a trellis or fence where its bright yellow, fragrant, flowers can be admired. If used as a ground cover, it often becomes a tangled mess that is very difficult to walk through. If planted near the base of a tall tree, it will venture up into the canopy, but the flowers cannot be easily seen or smelled.
The one drawback to this species is that it tends to sucker. In a more formal landscape, it should be placed in a setting where the suckers can be controlled by judicious pruning. If used in a naturalistic setting, it will spread and will be difficult to control. But, in such a setting, control may not be needed.