I was wondering if anyone knew what vine this is. It has leaves just like my morning glories, but hd small little white flowers during spring, and hasn't had any since. Now it looks like it's getting ready to drop seeds. It's kind invasie, but I actually want to spread it around our fences. Chain link looks much better draped in green, and these vines do extremely well in the Texas heat. How will I know when the seeds are ready?