Two years ago I was given a few seedlings of this Delphinium. In London it is fairly happy to continue from self sown seedlings but this winter I kept one back in a pot and it flowered beautifully last month. It is widespread in Greece especially through the islands and I have seen it in many places on Crete. Colour varies from muddy greens and almost grey through good blues and purples. No doubt there will be a pink variant somewhere and presumably a white.
It is a plant of sheltered habitats including valley bottoms, gullies and near human habitation. There is a good population of it round the generally abandoned village of Aradhena perched by the gorge of the same name in SW Crete.
As a side. One of our cats had a spell of being stressed which we treated with a homeopathic remedy. This was "staphisagria" an extract of this delphinium and it worked.