Coneflower are Long-Day Plants
February 19, 2019
Plants that bloom only in summer, such as coneflower, are typically long-day plants; those that bloom only in early spring or fall, such as chrysanthemums, are typically short-day plants. Plants that can flower continuously through the growing season—such as roses, cucumbers, and tomatoes—are day-neutral.
Summer-blooming coneflower respond to long days (short nights) to flower.
PC: Leslie F. Halleck
