Hello all, a neighbour showed me a plant she has today and asked if she could train it up a wall like one she had seen in another lady's garden. The plant was Cerinthe. I've always thought of it as an annual that self-seeds then gets pulled out about now to be replaced by new plants from seed next year. I can't see how one has been trained up a wall. Does anyone know of a version that is more of a shrub and so could be trained? Many thanks.