Thanks PS, but I'm not sure I'd find the time. I'm prepared to give up one day a week, but not two. Anyway, we cancelled the Observer a year or so back. I couldn't cope with all those supplements. I may have to try it on-line.
I grew Echiums from seeds I brought back from Scilly a few years ago.
I gave my neighbour a plant and now he has lots in his Devon garden!
They seed everywhere but pull out easily if you don't want them.