Late summer flowering hardy perennial, best grown in full sun and reliably moist soils - mulch well in spring if in doubt. Will form a loose and delicate mound of branching stems generously covered with very pretty pale lilac-blue flowers, with golden centres. Fully hardy. H: 50cm
Exceptionally floriferous late summer flowering hardy perennial; lavender blue daisy-like flowers in late summer. Grow in full sun and in moist but well drained soil. Fully hardy.. Approximate height: 70cm
Shade tolerant and happy in moister soils, Astilbe 'Younique Silver Pink' develops a very pretty clump of finely cut, almost fern-like foliage. In summer flowering stems will be covered of clouds of soft silvery pink flowers - much enjoyed by bees. Will also grow well in pots. Fully hardy. Height: about 60cm
Hardy perennial grown for its very large leaves, held horizontally. Plumes of white flowers on tall stems in summer. Prefers moist, and /or shady conditions. Fantastic woodland plant that will lend an exotic air to the garden.. Fully hardy. H: up to about 75cm
Clump forming perennial with lobed mid green leaves. Dark red flower heads occur throughout summer-autumn. H60cm. Fully Hardy. Enjoys full sun or a little dappled shade in moister soils, but preferably not waterlogged in winter. Over a couple of seasons will developed into a strong clump and will produce flowers for most of the summer. H60cm.
The false indigo is a lovely thing to behold. 'Lemon Meringue' bears sturdy lupin-like racemes of bright yellow flowers in late spring. It is an upright and densely branching plant with oval leaves and strong stems. Wonderful in a herbaceous border. Hardy. H: 60cm. Full sun and moist but well drained soil preferred.
An upright, clump forming perennial with attractive blue-green leaves. In mid summer the plant produces tall stems carrying white lupin-like flowers. The lupin-like plant is drought resistant when established and forms a handsome clump once mature. Fully hardy. Prefers full sun and well drained soils. Height: up to 1m
An upright, clump forming perennial with attractive blue-green leaves. In mid summer the plant produces tall stems carrying spires white lupin-like flowers. Fully hardy. Prefers full sun and well drained soils. Height: up to 1m once established, by which time it becomes notably drought resistant.
Wonderful perennial suitable for back of a sunny border. Heavily divided ferny foliage supports numerous lemon yellow flowers with a white drop at the end of each petal. Highly floriferous. A hardier version of Bidens. H: 1.5m. Full sun and well drained soil required.
Large, erect bulbous perennial, with pale blue to white flowers growing along the upper length of the stems. Ideal for dappled shade or full sun, plant to mid- or rear of border. Native to N. America. Fully hardy. H: up to 1.2m
Fully hardy perennial with a compact and upright habit and which will spreads to form a clump of foliage. Large (5cm) lavender-mauve bell-shaped .flowers are produced in profusion throughout summer. Campanulas enjoy quite moist soils and perhaps a little light shade as well, so plant accordingly for the very best results. H:35cm
Repeat flowering from mid-summer until the first frosts, with rich purple-blue flowers. Delightful 'cottage garden'; subject or even in a pot. Fully hardy, and enjoying fertile soils that are moist and reasonably well drained. Full sun, if the soil does not dry out, otherwise dappled shade for best results. H: 20cm
Excellent, recently introduced bellflower. Flowers over a very extended season, with successive dark purple buds opening to pale lavender-blue flowers, lending the whole plant a striking bi-colour appearance. Grow in moist but well drained soils in full sun or light shade. Fully hardy. H: 50cm, Commercial propagation prohibited
Lovely clump forming perennial, flowering in mid summer. Pale lilac-pink flowers clustering up the stem. Prefers partial shade or sun and a rich moisture retentive soil. If in doubt, mulch with well-rotted garden compost in spring. Fully hardy. H:50cm.
Lovely 'cottage garden' hardy perennial, forming neat rosettes of bright green leaves and in summer tall spires carrying unusually large powder blue 'bell flowers'. Best in full sun and moist, well drained soils. Full height of the flower stems will be about 90cm
Clump forming, upright, hardy perennial flowering in mid summer. Slender tall stems, up to 60cm, carry mid-blue flowers, with outward curling petals revealing a further inner set of petals inside the flower. Hardy. H:60cm. Full sun and moist but well drained soil preferred.
Ornamental thistle, native to the Balkans. Produces brilliant red flowers on tall stems in summer and will continue flowering if dead-headed. Silvery-leaves, intriguing bristly bronze-coloured flower buds and last well as a cut flower. Very attractive to bees and butterflies. Best in full sun and moist but well drained soils.
A lovely little hardy perennial forming an attractive mound of silvery-green divided leaves. Beautiful dusky pink shaggy flowers with a paler centre form on the plants throughout the summer. H: 20cm Dry soil preferred in full sun.