Salvia Uliginosa

This towering beauty produces its clear blue flowers over a couple of months from midsummer – so it’s perfect for adding soft, unstructured height and colour to the back of the border. As its rather unflattering common name suggests, ‘bog sage’ is happiest in a sunny spot, with soils that are reliably moist but not waterlogged. The flowers mix well with most pinks, purples and plums, and they are also sought after by bees and butterflies.