'Coronation Gold' is an upright, clump-forming hybrid yarrow, with deeply-dissected, fern-like, aromatic, silvery to gray-green foliage and tiny, long-lasting, bright mustard-yellow flowers which appear in dense, flattened, plate-like clusters up to to 4 inches across. Blooms through the summer on stiff, erect stems typically rising 3 to 4 feet tall, slightly higher than the foliage. A very rigid, upright yarrow, slightly less invasive than others.
Many different cultivars of Yarrow are available, with different flower colors, including yellows, reds, peaches, and pinks. Yarrow makes a good ground cover when mowed, and tolerates a fair amount of foot traffic. Divide in the spring every few years as the centers can sometimes melt out. Grow in full sun to part shade in well drained soils. Tolerates clay soils. Yarrows are best not planted next to slower-growing and smaller perennials, as they may overtake and overwhelm them.