Astilbe plants have lovely, fluffy, tall flowers. They are hardy and are perennials. They like shade and will flourish without a lot of care. They aren’t fussy about soil conditions and will grow in dirt with clay in it.

Here are some pictures.

By Kurt Stueber, Wikipedia

By, Andrew Bossi, Wikipedia Commons

By, Dinkum, Wikipedia Commons

By, Stan Shebs, Wikipedia

This last picture I found at