The corkscrew vine (Vigna caracalla) is a semi-perennial climbing vine native to tropical South America. This means it can only be successfully grown outdoors year-round in USDA hardiness zones 9 ...

Passionflower vines are easy to grow to a flowering state in full to partial sun. They don't need cool night temperatures, short days or a visit from the pope. They should be fertilized lightly in ...