Asclepias tuberosa

This herbaceous perennial grows up to 90cm tall and has very delicate blue cornflower-like flowers that grow continuously from early to late summer. The flowers grow on a long thin stem with neat grass-like leaves. For a better display, we recommend planting a minimum of three plants close together to make up for the sparse foliage.

This rare herbaceous plant has thin stems with wavy leaves that are topped by delicate cream and purple flowers shaped like little teacups. The flowers appear in spring and bloom all the way through to summer. This delightful plant is hardy and always grows back even after very cold winter weather.

Eryngiums are very robust plants that grow well in full sun and can be tolerant to drought. The plants bear spikey cone-shaped flowerheads in blue and silver-grey tones. Spent flowerheads give winter interest to your border, so don’t cut them back straight away.