Polemonium

Polemonium, commonly known as Jacob’s ladder, are charming hardy perennials with finely divided, ladder-like foliage and clusters of delicate flowers held above the leaves in late spring and early summer. Most varieties flower in shades of blue, violet, lilac or white, creating a soft, airy effect that works especially well in cottage gardens, woodland-style planting and relaxed mixed borders. The foliage of Polemonium is part of their appeal too, forming neat clumps that add texture even before the first flowers open.

These Polemonium perennials are particularly well suited to fertile, moisture-retentive soil and partial or dappled shade, although many varieties also grow happily in sunnier positions where the soil does not dry out. Their flowers are attractive to bees and other pollinators, while their compact, clump-forming habit makes them easy to combine with ferns, hardy geraniums, Aquilegia and other spring-flowering perennials. Polemoniums are useful for softening the front and middle of borders, where their fine foliage contrasts beautifully with broader-leaved plants.

For UK gardens, Jacob’s ladder plants are an easy way to bring gentle colour, texture and a natural feel to spring and early-summer planting. Whether repeated through a shaded border or mixed among other hardy perennials, Polemonium adds detail without heaviness, with graceful flowers and fresh foliage that sit comfortably in both traditional and more naturalistic garden schemes.