Acanthus

Strong shape is where Acanthus plants really earn their place in the border. Commonly known as bear’s breeches, these hardy herbaceous perennials form substantial clumps of deeply cut, glossy foliage, followed in summer by tall flower spikes made up of hooded blooms and prominent bracts in shades of white, mauve and purple. The combination of sculptural leaves and upright flowers gives Acanthus a confident, architectural presence that works especially well in larger mixed borders, Mediterranean-style planting and more formal schemes that need a strong structural anchor.

Once established, Acanthus perennials are robust and long-lived, preferring fertile, well-drained soil in sun or partial shade. Their broad foliage fills space generously through the growing season, while the flower spikes rise well above the leaves and can remain decorative even after the flowers have faded. Taller varieties make particularly effective statement plants towards the middle or back of a border, where they combine beautifully with grasses, salvias and other perennials with finer foliage.

For UK gardens, bear’s breeches are a reliable choice where bold texture and lasting structure matter as much as flowering. Plant Acanthus as a focal point, repeat it through a larger border for rhythm, or use its substantial foliage to contrast with softer neighbouring plants. With its distinctive leaves, stately summer spikes and established-garden character, Acanthus brings a sense of permanence and maturity that few perennials can match.