Mexican Bush Sage

The Salvia leucantha, commonly known as Mexican Bush Sage, throws long arching spikes of velvety purple calyces from late summer into autumn, each carrying a white or purple flower, over narrow grey-green leaves that are white and woolly on the reverse.
It is planted in dry mass borders, median strips and roadside beds, where it flowers hardest at the end of the season when most other shrubs have finished.
Mexican Bush Sage carries a dry border through autumn on very little water, and the velvet flower spikes read from a distance.