An exotic member of the lily family, gloriosa lilies are unlike most lilies. They are climbing vines which are also known as flame lilies, climbing lilies and glory lilies. Gloriosa Rothschildiana is one of the most popular cultivators (types) of gloriosa lilies and grow well in USDA zones 9 to 11. While most lilies have bulbous roots, Gloriosa Rothschildiana actually have tuberous roots.
Choose a planting site. Gloriosa rothschildiana lilies prefer full sun, however they can tolerate some shade. In addition, your planting site needs to have a support for the vines to grow. A trellis, wall, arbor or fence work well. In addition, many gardeners plant Gloriosa Rothschildiana near a green shrub so the lilies grow on the shrub, adding interest and color.
Check to be sure the soil is well draining. Dig a hole that is 2 feet deep and fill it with water. If after 24 hours any water remains, amend your soil so that it drains water better.
Amend your soil, if necessary. Till about 3 inches of organic matter, such as compost, leaf mold or peat moss, into the top 12 inches of your soil. If the planting bed is raised some after this, that is a good thing, as that will also promote better drainage.
Plant your bulbs (remember, they're really tubers) on their sides about 3 inches deep. Backfill the soil and water well. Use your hands or feet to push down on the soil to remove all the air pockets. Space multiple bulbs 12 inches apart.