Temperature and Humidity The various species of Solomon’s seal prosper in USDA hardiness zones 3 to 9, while with some variation concerning species. Although they like cool and shady environments with some humidity, Solomon's seal can successfully increase in incredibly hot and dry climates with some assistance. The Polygonatum genus, https://music.youtube.com/channel/UC9cvqllo2NXn5XScvX924nQ?si=ybst0P5QXNu5XY5M