Garden Designs Ideas 2018 :
Yarrow (Achillea) is a carefree perennial that can reach 8 feet high. But woolly yarrow (A. tomentosa) has a ground-hugging habit with bright yellow flowers that grow to 10 inches tall. For more height, 'Moonshine' (shown) grows 2 feet high with similar blooms. Yarrows like dry to medium-damp soil; full sun. Zones 3–8
