Prefers semi-shaded sites will tolerate more light if the soil is kept moist.
Needs moist soil. Plants growing in dry conditions will be small, few blooms and tend to dry up during the hotter days in the summer
Soil & Site
rich, humusy moist well-drained soils
pale lavender, light pink loose flower clusters
Ternately compound and the leaflets are coarsely serrated. The dissected foliage is an attractive feature of the plant.
4-5 feet tall, space 18-24 inches
Division of the clumps every 2-3 years will help to maintain the vigor of the plant. Astillbe are heavy feeders and need to be fertilized every year in the spring and also in the early fall. Some of my Astilbe tend to heave in the winter. In the spring I cover the exposed roots with soil, mulch or dug them in.
I have a group of Astilbe in a 1/2 to 3/4 day sunspot for over 10 years and they are a showstopper when blooming. To achieve this they are growing in a bed that is raised a few inches and the soil is naturally constantly wet.