Robust plant, suitable for edging, front of border and container. The cup-shaped blue flowers are 5 cm accross, plentiful, and on show all summer. Height 20 cm. Spread 30 cm.
Very compact and petite trailing plant. It is evergreen and has star-shaped blue flowers. These face upwards and appear from the middle of spring through to summer. Height 10 cm. Spread 15 cm.
All summer long this border plant provides huge drooping bells on upright stems. They are violet blue in colour and very graceful. Height 75 cm. Spread 45 cm
This evergreen vigorous plant is indispensable. Easy to grow and hardy , it will be covered in deep blue flowers all summer long. Height 15 cm. Spread 50 cm.
A tidy mound of slender stems with large drooping purple-blue bells in early to mid Summer. Very floriferous. Prefers a sun or partial shade position. Height 15cm. Spread 30cm.
The double lilac blue flowers seem to have one flower inside another flower, making them striking and extra frilly. Flowering during the summer months. Height 90 cm. Spread 60 cm.
The brilliant blue flowers that appear in July and August have a darker centre and resemble cornflowers. Suitable for drying. Height 60 cm. Spread 30 cm
A well known plant from olden days. Ideally put at the back of a border, where its dark blue flower spikes with their white centres will be spectacular. Needs some support. Height 150 cm. Spread 60 cm.
This dense and bushy plant is well suited to the rockery or the front of your border. Intense blue flowers, shaped like a dragons head, appear in summer. Height 30 cm. Spread 30 cm
Often grown as an architectural plant for its shapely leaves, the dark blue flowerheads in summer will attract many butterflies and bees to your border, Height 100 cm. Spread 45 cm.
To add an exotic touch to the garden, this plant will produce a magnificent tall, blue flower spikes every second year over silver green foliage. Spikes up to 400 cm. Can be very irritant to the skin.
