'Moonshine' is an upright, clump-forming, compact hybrid yarrow, with deeply-dissected, fern-like, aromatic, silvery to gray-green foliage. Flowers are long-lasting, bright lemon-yellow, and bloom throughout the summer on stiff, erect stems. This plant resembles A. 'Coronation Gold' except it is much smaller and the flowers are a lighter yellow. Grows about 18 inches tall and 24 inches wide, and seems to be slightly less invasive then other yarrow, keeping a more clumping habit. A great addition to a sunny perennial border.
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.