I have heard foxglove called the king of the garden, and delphinium the queen of the garden. It's pretty hard to argue the point. The black knight delphiniums shown here were stunning. I only wish I had more. I had problems in the early spring with clay based soil becoming waterlogged and killing the root systems of some of my delphiniums. I dug in a bag of peat moss in the area, and the remaining plants seemed to recover. Also out in the garden at this time were the bachelor buttons, so I had a "blue period" during early July. Neat to see it change to yellow as it moves into August.
Please walk around to the front of the perennial garden.