This large blue prunella (Prunella grandiflora) flowers in the summer with relatively large blooms. Also known as 'self-heal', it is a low growing plant that makes for colourful ground cover. It will lose its leaves in the winter but they will always return come the spring. A large prunella is ideal in the border but also very suitable along the edges of a (wild/natural) garden path. Large prunella will attract lots of butterflies & bees to your garden.