Astilbe Fall Care - Web last updated 13 february 2023. Web division of astilbe is best done in the fall. For the early blooming varieties, you could do this in the late summer. Astilbe is a tough flowering perennial that is hardy from usda zones 3 through 9. Web divide astilbe every 3 to 4 years in spring or fall. Web learn how to grow and care for astilbe. Remove flower stalks when they turn brown after blooming to keep plants from.
Astilbe is a tough flowering perennial that is hardy from usda zones 3 through 9. Web learn how to grow and care for astilbe. Web divide astilbe every 3 to 4 years in spring or fall. Remove flower stalks when they turn brown after blooming to keep plants from. Web last updated 13 february 2023. Web division of astilbe is best done in the fall. For the early blooming varieties, you could do this in the late summer.