Jo, I think they would look lovely with tulips, but then again a pot full of tulips on their own looks great too. Do you ever get over to Harlow Carr, their tulips are stunning. We often go over to Llandudno and they sometimes have beds full of wallflowers along the promenade, beautiful.
FG, sow seeds in early summer. What a wonderful place to live, used to go to Forest of Dean for family picnics as a child.