
Chalky soil suits plants that like alkaline and free-draining conditions, and aren't bothered by drought or growing in nutrient-poor soils. Think of plants that thrive in dry summers as this is a good starting point for choosing the best plants for chalky soil.
When planting in chalky soils first establish how deep the topsoil is. A lot depends on whether or not there is some clay present in chalky soil, as this generally means there will be more nutrients and greater moisture content available so more plants will thrive. Alternatively if your soil is very chalky it's better to choose from a more limited selection of plants that thrive in alkaline conditions.