Join your state's Native Plant Society and become involved in conservation efforts. Educating visitors to the habitats where this spider lily grows is an important part of keeping it from becoming extinct.
Acquire seeds, bulbs or plants from a reputable source, such as the South Carolina Native Plant Society or the Water Gardeners International.
Plant the Rocky Shoals spider lily in a sunny spot amid rocks found in a pond or stream on your property. Keep the area wet at all times: this is an aquatic plant that must live in shallow water.
Grow the spider lily in a pot if you wish, according to the Water Gardeners International website. Use a good quality potting mix and fertilize with a plant food having an N-P-K ratio of 17-6-10. Keep the soil wet at all times.
Gather seeds and bulbs when your spider lily matures and share them with friends and family members who are also interested in growing this plant and helping it to avoid extinction.