Growing Astilbe

Pronunciation: uh-still'-bee

Astilbes are among the best flowers for light to moderate shade. In average garden soil, they require partial shade; they tolerate full sun only where moisture is ample. (Partial shade or shade and damp soil are essential for best performance in the South and warm inland areas of the West.) Most varieties fare poorly in dry soil. Many gardeners leave spent plumes standing until beaten down by weather.

Suggested Use

Good for somewhat shaded areas in the back of the rock garden, herbaceous border, front of the shrub border, and cutting garden.

Culture

Provide well-drained, organically rich soil; filtered light; evenly damp (not wet) locations; 3–4 hours sun; planting depth 1″; spacing 12–18″; pH 6.5–7.0.

Problems

Few insect or disease issues, but blossoms may dry out prematurely in exceptionally hot weather.