They prefer partial shade but will tolerate sun
A. hupehensis var. japonica ‘Bressingham Glow’
Although the plants may take a year or two to become established, fall-blooming anemones form a handsome 12-inch-tall ground cover that can spread quickly when planted in the right place. They flourish in light to partial shade in moist, humus-rich soil but will tolerate full sun as long as there is sufficient moisture. Locations receiving morning sun rather than the hot afternoon sun are best, particularly in Zones 7 and higher. Water-saturated soil, especially in the winter, may lead to the death of the plant and should be avoided.
Spring planting is recommended, and mulch is necessary during the plant’s first winter. In colder areas (Zones 5 and lower), plant anemones in protected spots near walls or fencing, for example, and apply leaf mulch every winter. The type of soil also determines how quickly a plant spreads; anemones spread more easily in a light, moist soil than in a heavy, dry soil.
These perennials don’t require deadheading to prolong flowering, but cutting out spent flowers can keep plants looking tidier, although you will sacrifice the attractive seed heads. Once hit by a good, hard frost, the foliage blackens and becomes unsightly, so many gardeners often remove it in late fall. If the darkened foliage doesn’t bother you, however, leave it as winter protection.