Sarastro is very different from the other bellflowers we grow in that it thrives in the sun rather than shade and it is clumping rather than running. Many horticulturists believe Sarastro and Stevie Ray are the exact same selection and that name got mixed up/duplicated over the years. We planted it in our garden around 2003, so it is a quite long-lived perennial. Always asked about when in bloom from late spring through mid-summer, Sarastro looks amazing with its 2 inch bells of blue-purple. Cut away the flower scapes once it has finished blooming to tidy up. This plant apparently originated at Sarastro Nursery in Austria as a hybrid between C. punctata and C. trachelium.