Variety with white, pink, rose and purple flowers, sometimes speckled. Flowering occurs from the bottom to the top of the flower stem. The tubular flowers are visited regularly by bees that completely disappear within the flower in their search for nectar. Prefers the semi-shade. Although a biennial, the plant often continues further if it is cut back soon after flowering. Keep away from children, as this plant is poisonous (like many other garden plants).