H. parviflora is also known as Red Yucca, or False Red Yucca. The clumps get about 3-4 feet tall and wide, and they grow well in the heat. They don't need a lot of water, and don't need a lot of care in general - other than trimming the dead flower stalks off. If the clumps get really big, they should be divided, although I haven't done that to any of mine yet. The leaves don't have teeth, but the ends are sharp!
|Wider view. This clump has been in the front garden for about a year.|