Salvia leucophylla

From South-West California, where it can reach massive proportions, S. leucophylla will only reach 3ft.x 2ft. here. It has numerous cultivars in the USA. Unfortunately, it is not an easy plant to get into flower in the UK, though the silvery-white foliage is very pleasant. It will not tolerate our damp winters, so two years ago, I kept it in a pot, in gritty compost, under glass, and gave it hardly any water until March. It then started a lot of new growth, and flowered well for 6 weeks in spring, with nice pink/lilac flowers in large whorls. The same treatment last winter..but no flowers! Propagation is from cuttings here. (Photo courtesy of Michael Charters.)