Also known as Japanese windflower, this delicate flower is a great addition to a fall garden. Anemone leaves resemble a maple and have stems that can reach up to 39 inches. The single or double blossoms come in white, pale or dark pink or can even be double-colored. Anemones spread easily once they are established and a mass planting of anemones in full bloom is beautiful. The plants are suitable for USDA zones 6 to 9.
Select the site for the anemones. The plants prefer shade or semi-shade with shelter from strong winds. Select a site where the anemone can remain undisturbed for several years, such as the back of a shady flower bed or under trees where they can receive dappled sunlight. The plants grow best in well-drained soil. Mix in plenty of organic matter several weeks before planting.
Plant the anemone bulbs in the fall in the south and in the spring in the north. Dig up an area to plant a large number of bulbs. Put the bulbs, any side up, in the hole 2 inches deep and 2 to 4 inches apart. Cover with soil and tamp down gently to remove air bubbles. Water to settle the soil.
Keep anemones moist but not wet. New plants require ample watering during prolonged dry spells during the growing season. Apply a complete plant food in the spring. They have no specific problems.
Watch for the anemones to bloom beginning late summer. They will continue to bloom through the fall months. Cut back spent flower stems to the ground once they begin to fade. Cut the plant back to the ground in late fall.
Increase anemones from established clumps in early spring. Carefully dig up the clump and divide from the outside of the clump. Take these divisions from about every 12 inches along the outer edge of the clump, make sure that each division has a thick set of roots. Replant the divisions.
Thin anemones if they get too invasive. They spread quite rapidly, sending out underground stems. Dig up and share extra anemones with other gardeners.