Rue anemone is a delightful woodland plant native to North America. It typically bears white flowers, often tinged pink, through spring and early summer, which contrast beautifully with the dark green, blue-tinted leaves. It's ideal for growing in informal parts of the garden, amongst shrubs, or on the shady side of a rock garden. Plants take quite a while to settle down and get established, but thereafter they start to spread.
Anemonella thalictroides f. rosea 'Oscar Schoaf' has large pink fully double flowers over a long period. As well as looking great in border displays it makes a beautiful cut flower.