Full sun. 18 to 30 inches. Upright stems are covered with lavender-blue blossoms with pink buds and red stamens. Flowers are very attractive to bees and butterflies. Viper’s Bugloss self-sows for flowers next year. Deadhead if you do not want volunteer seedlings. Viper’s Bugloss will do well in well-drained soil. Avoid direct skin contact with this plant. Blooms heavily up until frost.