What is this plant
I have 3 plants in my garden that are driving me mad, the reason being is I don't know what they are. They are very woody and have a spread of about 90cm, the leaves are thin and about 6cm covering most of the stalks and they have a dark pink/purple spikes made up of small flowers. I know it is not a Buddlia, but it driving me mad not knowing what it is, my other half had thrown out the labels when we planted them. Please can any one help.