The color of the edges spreads and gets brighter with more sun exposure, and in cooler temperatures. In the spring, they will produce round clusters of small, white, sta- shaped flowers that offer a striking contrast to the red and green of the foliage.
Firestorm sedums are relatively low maintenance, as long as conditions are right. These plants are frost tender, and should only be grown outdoors in USDA zone 10a and above. They do best (and are at their most beautiful) in spots with full sun exposure. Like many sedum plants, they are drought tolerant and grow well in sandy, poor soil. They have a low, spreading habit, and several plants spaced a foot (30 cm.) or so from each other will eventually grow into a very pleasant mounding groundcover formation that looks especially nice along borders. In cooler climates, they should be grown in containers with very good drainage, placed in a sunny spot, and watered only when soil is completely dry to the touch. Bring the containers indoors before the first frost.