Native to southeastern Europe, Achillea crithmifolia is associated with open, sunny ground where soil is often sandy, loamy, or rocky rather than rich and moisture-holding. That background explains its preference for mineral, airy soil that drains quickly after rain.
The best soil for Yarrow stays well drained while still giving roots enough contact with moisture between waterings. Its spreading root system performs best in loose, oxygen-rich soil, where it can move easily and avoid staying wet for long periods. Slightly acidic to slightly alkaline conditions suit it well.