This is a useful little plant endemic to China which has dark grey leaves with large handsome blue flowers on crowded stems.
The entire plant is a fine sight for weeks in midsummer as the flowers last for quite a while. Both flowers and foliage emit a strong lemon fragrance.
It spreads by underground rhizomes and makes fine ground-cover for very well drained soils, rockeries or gravel gardens in full sun.
Photo: © Jelitto
Dry, well drained
Clay Hill Road•Lamberhurst•Kent•TN3 8LT
07973 129 102