I planted several Confederate Jasmine vines in my back yard, which I assumed were all the same type of vine. However, after the first year or so I noticed that one type had thicker stems (woodier) and produced seed pods that are about 2" long. The other type has thinner stems, seems to grow faster, and does not produce the seed pods.

Can someone advise as to how I can tell what the cultivars are? I want to put some Confederate jasmine on an arbor in a separate location and would prefer to use the thinner/faster type. The problem is that I don't know what the difference is in order to make sure I buy the right cultivar.

Thanks!