Although Astilbe can be grown in full sun, it has earned a reputation as a shade perennial because it does equally well in partial shade, where it adds a full season of interest with virtually no maintenance. Astilbe bloom only once per season and don't require deadheading. The flower plumes will often remain attractive long after the color has faded.
For some reason, gardeners tend to be cautious about dividing Astilbe. You needn't be. Even a one year old plant can be successfully divided, as long as each piece has some roots attached. The resulting plants will fill out quickly and help you create an even more lush looking shade garden.
Astilbe chinensis 'Superba' (USDA Zones 4 - 9, 24" x 18", Pink Blooms: August)
Alternative: Astilbe x arendsii 'Rheinland' (USDA Zones 3 - 8, 24" x 18", Pink Blooms: July - August)
There are always new, excellent pink astilbe being bred, but 'Rheinland' is particularly reliable and tends to bloom a bit earlier.
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