Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Sun to Partial Shade Light Shade
Bloom Color: Pink Violet/Lavender
Bloom Time: Mid Summer
Foliage: Herbaceous Bronze-Green
Other details: This plant is attractive to bees, butterflies and/or birds Requires consistently moist soil; do not let dry out between waterings Very high moisture needs; suitable for bogs and water gardens
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Would like to add to the above that, in our Maryland garden, we have never had to water this plant, and one year was so dry you could walk across a local reservoir. To qualify its drought tolerance with us, let me say that it was already established before that summer. Also, our soil does have a high, moisture-retentive clay content, lots of compost was dug in before planting and the area where it grows is mulched once a year - when we can. Apparently, the dainty looks of this plant belie its extremely versatile constitution that has such a wide range of adaptability.
On Nov 12, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:
A nice dwarf astilbe for moist to wet locations where you don't want a taller version, such as borders or as a graduation to taller flowers. Has lavender plumes in late summer - this one starts blooming after most of the others are done.
Great for shady locations or just as happy in full sun in northern climates. Fast growing. Divide every couple of years. Moves well to other locations after being divided. Cut flowers back after flowering.
On Aug 1, 2002, smiln32 from Oklahoma City, OK (Zone 7a) wrote:
Be sure to cut back faded flower stalks. Extra water may be needed in dry periods. Divide after 3-4 years in spring or fall. Astilbe requires a lot of nutrients, so give it some fertilizer at least once per growing season.
This plant has been said to grow in the following regions:
Evanston, Illinois Bloomington, Indiana Atalissa, Iowa Keomah Village, Iowa Buckfield, Maine Ellicott City, Maryland Longmeadow, Massachusetts Peabody, Massachusetts Pinconning, Michigan Royal Oak, Michigan Minneapolis, Minnesota St Paul, Minnesota Brunswick, Missouri Lincoln, Nebraska Cayuga Heights, New York Croton-on-hudson, New York Highland Heights, Ohio Warren, Ohio Lake Oswego, Oregon West Goshen, Pennsylvania Kalama, Washington Ocean Park, Washington