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'Indigo Spires' sage is a vigorous hybrid prized for its 12- to 15-inch-long, twisting spikes of dark violet flowers. It is a non-stop bloomer from early summer through fall. Blooming can be further encouraged by pinching stem tips early in the growing season and deadheading the spikes once they fade. 'Indigo Spires' quickly grows to 4 feet high, and can be grown as an annual where not hardy.
This perennial produces long spires of large, deep blue flowers from mid-summer to frost. It forms a tall bush 6 feet tall by 2 feet wide that is great for the back of the border. It is drought tolerant because of its unusual, moisture-conserving rhizomes.
This plant is as dependable and adaptable as they come. Its flowers bloom from August into November; they open pink and mature to a copper befitting of autumn. It is 2 feet tall and wide, with succulent stems and leaves. 'Autumn Joy' looks great with ornamental grasses.
This moisture-loving perennial produces clear blue flowers with white highlights in late summer to mid-autumn. It forms an airy clump to 6 feet tall by 3 feet wide, and is great for the back of a border. It is tolerant of heavy soils.
This choice species boasts narrow, downy sage-green leaves and true sky-blue blossoms from summer to fall. It has woody stems and forms a beautiful specimen 12 inches tall by 18 inches wide.
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