An exciting Broken Arrow Nursery introduction that we discovered in a client' s garden. The upright, vase-shaped habit of 'Harvest Moon' supports attractive, burgundy-flushed new growth that matures to dark green. In late fall, plants offer numerous clusters of large, lemon-yellow flowers that are closely spaced along the branches. The overall effect is a much showier display than is common for the species. In our trials, plants have flowered up to two weeks later than the species and remain showy after the foliage drops.