Asilvert, I think their sterility.....or lack of it....is the reason they are perennial and I agree that they are more exotic due to crossed parentage. Gardengirl I have tried to grow foxgloves but all are one season wonders despite claims made that they won't be. My neighbour grows them from seed every year and he offers me some occasionally. Wild foxgloves abound in Cornwall though in the hedgerows, towans etc. my Illumination Pink were quite cheap, are quite large and supplied early so I hope they will give me something special next summer