Easy to grow in full sun and average garden soil. Remove spent blooms of V. 'Homestead Purple' and V. tenuisecta'Edith' to keep the color coming. V. bonarienses generally self-sows with abandon; scoop up the seedlings in spring and relocate them as you desire. V. bonarienses and V. 'Homestead Purple' are hardy to Zone 7 (0 degrees F). V. tenuisecta 'Edith' is hardy to Zone 8 (10°). If grown as perennials, plants should be pruned hard in spring to remove winter-damaged stems and ungainly growth and to encourage new growth and flowering.