Description: 'Santos' is a small, bushy, spreading, tuberous perennial to 30cm tall, grown as an annual, with oblong leaves and dense clusters of small, purple flowers from early summer to autumn.
Care: Grow in moist but well-drained, moderately fertile soil in full sun with shelter; protect with a dry winter mulch in frost-prone areas. Propagate by stem tip cuttings in late summer. No pruning required. Cut back after flowering.