There is nothing like purple perennials in the garden. Take a look at these beautiful ones. Many have long lasting flowers and are drought tolerant.
A garden design that includes purple perennial plants can create one of the most striking landscapes. Perennials come in many shades of purple, but I also use various types of Lilacs (as shown here). 'Miss Kim' is a smaller one while 'Bloomerang' is a rep
The aromatic blooms of Russian Sage (Perovskia atriplicifolia) start in midsummer and last through midfall with little water or upkeep. The habit of 'Denim 'n Lace' (shown) is perkier than those of other Russian sages, making it a nice fit behind shorter plants in a border. This sage grows up to 32 inches high and wide. Full sun; Zones 4–9