Common Name Japanese Anemone; windflower
Genus  Anemone
Species x hybrida 
Family Ranunculaceae
Life Cycle  herbaceous perennial 
Netting / Staking Can grow 1- 1.5 feet tall and up to 3 feet tall when in bloom. Taller plants may need staking or other support. 
Hardiness Zones 4-9.  In milder climates, they can be nearly evergreen. In the south, they will do best in part shade to prevent burning the foliage and drying out. In the north, they will do best with mulching well for winter. 
Spacing Spacing 12-18". They will spread quite quickly when happy.
Soil Preference High organic matter; good drainage; moist. 
Light Full sun (6+ hours direct daylight) or part shade (2-6 hours direct daylight)
Water  Anemones prefer moist but well-drained and fertile soils that are not allowed to dry out. Avoid planting in wet soils.
When to Plant Spring, when the ground is workable. 
Harvesting Anemones have some flexibility since they stagger their bloom over a few week period. I always tried to catch them with a couple, freshly opened flowers and some swollen buds.
Post Harvest Care Post Harvest guide coming soon
Diseases / Insects Flea beetles, caterpillars, and slugs are occasional pests. Susceptible to Synchytrium leaf gall, downy mildew, Septoria leaf spot, powdery mildew, and some viruses.
Bailey's Notes Anemone x hybrid, also known as Japanese Anemone, are actually hybrids of several Anemone species from China. They have all the charm of their spring blooming counterparts but are true perennials and quite adaptable to shade and even rather dry conditions. Best bloom will happen when kept well watered, but the plants will survive a range of conditions.

They will bloom well in their first year from planting.
Resources

North Carolina Extension Gardener Plant Toolbox 

Wisconsin Horticulture Division of Extension Anemone 'Honorine Jobert'