Bugle

Ajuga is a common plant related to the wild bugle, but selected for leaf colour and its larger than average leaves and flower spikes. The foliage is robust, evergreen and dark green in colour, and makes a good background to the upright spikes of dark blue flowers, produced throughout late spring to mid summer. Bugle is very versatile, equally at home as ground cover under trees or shrubs as in a sunny flower border, and even in containers. It is specially useful as background foliage in winter containers of ivies, santolina and pansies.

Looks good with:

Tiarella cordifolia
Brunnera macrophylla 'Jack Frost'