These unfussy, long-lived plants pump out beautiful foliage and flowers year after year. Plant in fall or spring when cooler temperatures help them get a healthy start
Delicate-looking flowers on ultra-tough plants tolerate just about any soil type. ‘Mönch’ grows to 2 feet-tall and pumps out 2 1/2-inch lavender-blue flowers almost all year if spent ones are removed.
‘Wonder of Staffa’ is another favorite with lavender blue blossoms.