Mexican bush sage has been used in our autumn landscapes for several years. Although it is a shrubby perennial of coniferous forests in Mexico, the Garden uses it in annual displays in September to November, when it is covered by hundreds of attractive flower spikes. The plants grow 3-4 feet in height with narrow light green leaves that are silvery beneath. The small white flowers emerge from densely fuzzy lavender buds in spikes that are 6-10 inches long. It is tolerant of cool temperatures and provides a food source for late butterflies and insects. Cuttings can be taken and the plants are rooted again for the following year's display.