This plant is producing several spikes with the tallest being 6 feet (1.8 m). It appears to have additional flower stalks beginning, so there should be a show well into June. The online sources state that Foxglove is a biennial, meaning it booms in its second year and then dies. The landscape architect friends state that if the flower stalks are cut off before going to seed, the plant will live and continue to produce in future years.
While visiting Mount Vernon estate this past weekend, several varieties of foxglove were blooming in George Washington's garden. None were the Pam's Choice variety, but were shorter, and colors generally included pinks, lavenders, and light yellows.