‘Blue Blazes’ Hyssop from High Country Gardens is a large, vigorous hybrid that blooms non-stop from mid-summer into fall, attracting butterflies and hummingbirds with its nectar-rich flowers. While the plant takes two growing seasons to reach its full size, it blooms the first year from planting. Situate it in full sun with a well drained soil. Pinching back the plant in late spring keeps it more compact.