'Bethellii' is a woody-based perennial with ovate, hairy leaves and dense terminal spikes of tubular purplish-red flowers opening from pink bracts in summer and autumn. Grow in light, moderately fertile well drained soil in full sun or light dappled shade with shelter from cold, drying winds. Protect with a dry winter mulch
salvia involucrata 'bethellii An amazingly exotic-looking plant, with ball-like buds, which open to wonderful pink trumpet flowers. This is borderline tender, but will survive outside if you can find it a sheltered spot in well-drained soil. It can stand cold or wet, but not both. On heavy soil, add plenty of grit and in the late autumn, mulch with bark chippings (about 4in deep) and then lay a sheet of polythene to keep the crown dry.