PowWow Wild Berry Coneflower will grow to be about 18 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 18 inches. It should only be grown in full sunlight and is drought-tolerant.
This Proven Winners hybrid dianthus will grow to be only 6 inches tall at maturity, extending to 8 inches tall with the flowers. Requires full sun and prefers average to moist conditions, so don't allow the plant to dry out.