Sun to part shade; Average to dry sandy soil; This tallish skullcap forms loose patches and is probably best in bigger gardens and places where it can be allowed to spread. Mixes nicely with bee-balm and mountain mint. Grows 2-3' tall; Blooms July-August ; Zone 5-8; WV ecotype. // Seed packet, about 50 seeds. Germination requirements: 60 days cold, moist stratification.