A stunning hardy geranium with decorative dark green foliage and eye45catching pale blue flowers veined with red masses of cup shaped geranium flowers are produced every year from this low maintenance perennial let geranium pratense 39midnight blue39 wander through your herbaceous borders where it will seed freely to create large drifts of colour height 35cm 40143441 spread 40cm 40163441 size 1 bare roots supplied