Sun to light shade; Average to moist sandy-loamy soil; One of the easiest gentians to grow due to its more upright and robust nature as compared to other gentians as well as its adaptability to a variety of soil types and moisture levels. Light blue flowers appear in September and October on 1-2' tall plants. Zone 5-8; PA ecotype. / Seed packet, about 70 seeds. Germination requirements: Sow on surface. Do not cover. 60 days cold, moist stratification.