Common Name Japanese Anemone; windflower
Genus  Anemone
Species x hybrida 
Family Ranunculaceae
Life Cycle  herbaceous perennial 
Bundle Size 10 bare roots per bundle 
Care All of these plants will ship to you from Vermont in early April. They will be just coming out of dormancy. You may see swelling buds or a bit of new growth, but in general they will be in a dormant state and may look a little dead. Don't worry! They will wake up.

You may see a bit of mold on the roots but this is completely normal. Simply wash it off and plant immediately. As a precaution you can treat the roots with a fungicide or biofungicide, but this isn't necessary. Small broken branches are also of little concern. Just prune off any broken bits and the plant will recover quickly. The root system is the important part at this stage in the game.

If you can't plant immediately on arrival store your bare roots in the cooler.The cold will delay their growth. Keep them from freezing. You can either pot them into 1 gallon pots or plant them directly into your prepared soil. Just make sure to plant them within a few days of arrival. They are waking up and are ready to grow, and they will decline quickly if they are not given soil, water and sunshine.

This is a carefully orchestrated process to get plants quickly from their storage conditions to you so please do your part and be ready to plant them on arrival. There is no reason that these plants will experience any stress if you prepare for their arrival.
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.

North Carolina Extension Gardener Plant Toolbox 

Wisconsin Horticulture Division of Extension Anemone 'Honorine Jobert'