Photos from the book "Tasha Tudor's Garden" have inspired me to try my hand at foxgloves again. I planted the excelsior hybrid successfully a few years back but in general want to step away from hybrids as much as possible. Tasha's foxglove variety were not identified in the book but were at least five feet tall. The author of the book attributed their success to compost tea. Does anyone know if the giant Shirley are hybrid? Can't find the information on the two websites were I found the seed available for purchase. Tasha's website offered the seed she planted a decade ago but no longer does.