Glittering Prizes is the most vigorous foxglove I've ever grown. I can't praise it too highly. The spotted flowers bloom in early June in shades of pink, purple and white. Hardy in zones 4-9.
Digitalis 'Glittering Prizes' is a glorious companion plant for roses, delphinium, and peach-leaved bellflower. Add some fillers like nigella and blue woodruff, and you'll have a garden that's the envy of the neighborhood.