Stomatium mustellinum is a night blooming species with wonderful smells of starburst-candy and other sweet aromas. Stems can turn bright red in winter or summer when the plants are being stressed, this can be quite colorful. Plants can bloom multiple times in a yaer and commonly bloom when nights are around freezing. These have survived our garden taking -11F and other growers in the area have had good luck. Worth a try if you have a cold hardy rock garden.