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Astilbe arendsii
False Spirea
Family - saxifragaceae - Saxifrage
Astilbe arendsii is truly one of the more beautiful plants in the perennial flower garden. The
flowers are almost cloud like, especially in the early morning and late evening. The fern-like
foliage is attractive through most of the growing season. And it is a tough plant, needing little
care and subsisting from year to year, hardy to USDA Zone 5. And best of all, no pests of any kind
have ever been seen bothering the Astilbe in my southern Indiana garden.
The flower colors on Astilbe arendsii range from red, white and pink on cluster eight to twelve inches
tall. The plants themselves grow from twenty four to forty eight inches tall. The ones in our garden
are around twenty four inches tall when in full bloom, usually around Father’s Day.
Semi shade is best for Astilbe arendsii, though it will tolerate full sun. Fertile, moist soil is
preferable. The plants are sturdy, never needing staking. The species name comes from German plant
hybridizer George Arends of Ronsdorf. He hybridized many named cultivars during his prolific career.
The genus name refers to the Greek word meaning "without luster", referring to the dark green, dull
look of the attractive foliage.
Astilbe arendsii is best propagated by division in fall or spring. It is possible to grow the
standard varieties, but the hybrids must be propagated from division to make sure the plant is true.
It should be divided every five years or so.
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