Tall and stately foxglove plants (Digitalis purpurea) have long been included in garden areas where vertical interest and lovely flowers are desired. Foxglove flowers grow on stems which may reach 6 feet in height, depending on variety. Foxglove flowers are clusters of tubular shaped blooms in colors of white, lavender, yellow, pink, red, and purple. Growing foxgloves thrive in full sun to partial shade to full shade, depending on the summer heat. They are hardy in gardening zones 4-10 and in the hottest areas prefer more midday and afternoon shade for optimum performance. The hotter the summers, the more shade the plant needs.