Tall spikes of indigo blue flowers top compact mounds of soft, green foliage. A showy perennial that is excellent for mixed borders, flower beds and patio containers. Thrives in areas where spring and summer nights remain cool. An herbaceous perennial.
Optimal Growing Conditions
Water weekly, or more often in or containers.
Appearance and Characteristics
Tall, colorful, indigo-blue flower spikes
Early June through mid-July
Plant Uses & Characteristics
Exceptional flower power
Great for borders or rock gardens
Good cut flowers