7200- Coreopsis lanceolata. Native to eastern North America, Lanceleaf Coreopsis has naturalized across much of the Prairies and even into the Rocky Mountains. It is a hardy perennial plant (Zones 3-10) that is both drought tolerant and able to endure high temperature and humidity.Start indoors late March for transplanting out after last frost. Or direct sow to mid-May. Seeds germinate in 5-25 days. If starting indoors, maintain soil temperature at 12-21°C (55-70°F) and provide bright light.