Cheiranthus?

We went up to the allotment for a good session of digging, hoeing, raking and sowing - whilst the broad beans and garlic are already well up and about their business and the shallotts are just beginning to sprout. There were lots of wee flowers showing too, including a cowslip that I'd forgotten about, lots of daffs and primroses and some muscari. It was a bit wet and windy, but at least the rain was relatively....warm.

I do love wallflowers. (I thought they were called Cheiranthus cheiri but appear to have had a change of genus to Erysimum).