What is this plant growing in my garden (in SW France)? I cannot find it in any of my books. The nearest I get is Wormwood, Artemesia absinthium. But that seems to have yellow flowers and grows to 80 cms. Leaves are slightly different. My plant has white flowers, grows to two metres. The leaves are very fragrant, particularly when dried. It is growing in ordinary poor soil and clay, and is in flower at the moment.