The Mansoa Alliacea is a woody, flowering climber that is often featured in tropical garden books. Mansoa Alliacea is one of the most rewarding, flowering vines that you can grow. Interestingly, it is not related to the common edible onion or garlic at all. The best location for the garlic vine is where it can get direct sunlight all day long. It is only practical to grow the garlic vine in outdoor gardens with a trellis because of its large size.