Aster

This herbaceous perennial grows up to 1.2m tall and bears red daisy-like flowers that turn copper over timeand sit on dark purple foliage. Very good long-lasting cut flower.

This salvia shows velvety purple and plum coloured blooms from spring to autumn and sometimes even until the first frosts. Grown in ideal conditions in well-draining soil and full sun or partial shade it will keep its foliage in mild winters and can tolerate very low temperatures with some winter protection. Plant in a patio container or near seating areas to enjoy the minty-blackcurrant scent from the foliage.

Cobalt blue flowers that resemble butterflies emerge in summer and last all the way into autumn. The plants can cope with light frosts but might need extra protection during extreme cold temperatures. Cut back in late summer to encourage a second flush in autumn and then trim the following year in spring to strenghten new growth.