Blue Horizon blooms continuously from late spring to frost. lavender blue flowers on 18 to 30 in. tall plants. One of the best ageratums for cut flowers.
Full sun in cooler climates, part shade elsewhere. Prefers rich, moist soil. Blooms are extraordinarily long-lived, dead heading is necessary, yet infrequent. Plants are low maintenance, resist rabbits and deer. Flowers attract bees and butterflies.