Two colorful species are seen in the West, one an annual weed and the other an attractive perennial. Newer hybrids are becoming popular.
Annual. This low-growing, weedy plant from Europe has bright green leaves and 1/2-in., brick red flowers. Has naturalized in California. A. a. caerulea has deep blue, larger flowers; it tolerates most soils and heat, thrives in dry gardens, and grows well in containers.
Summer annuals. ‘Cinnamon’ has medium pink blooms; those of ‘Spice’ are light ...
Native from British Columbia to California. Grows to 6–24 in. high, about 9 in. wide. Pale viole...
Native to Iran, Afghanistan, and central Asia. Absolutely covered with slender, sinuous spikes of...