Robust variety with dark lavender-blue flowers in late spring and aromatic gray-green foliage. Excellent groundcover with early flowers in summer. Favoured by bees, butterflies and other pollinators. Winterhardy perennial Height50-60 cm Width60-70 cm Spacing 50-60 cm (2 pc/m2) Site sunny or half-shade, medium moist, rich soil Propagationdivision