Monkshood

Monkshoods make a good show when you need vertical spires with blue flowers in summer and autumn. The heights range from 1m (like the blue and white A. x cammarum 'Bicolor') to just 60cm. This medium-high, extremely popular form has white-eyed blue flowers and very attractive blue-grey foliage. In open, exposed areas the taller kinds need to be tied to stakes to keep them upright after being battered by strong winds. The flowers have a large upper petal resembling a hood, hence the common name.

Looks good with:

Aquilegia vulgaris 'White Bonnets'
Hosta 'Big Mama'