These plants came as part of the collection of perennials I bought from Thompson-Morgan and are now overwintering  on the window ledge following first stage potting on. The instructions were to pot on immediately and keep frost free until Spring. They are a tall hardy perennial and will thrive in a sunny or semi shaded position on moist, well drained soil. Coneflowers prefer a deep, fertile soil and will benefit from the addition of some well rotted manure or garden compost to soil, prior to planting.