Sometimes NEW spiders and Unusual forms flop in the garden when they are rather new, and it might take them two to three years to become established. This clump has been here for at least 10 years and as a well established clump in full sun, the scapes do not lean!!! Sometimes growing them in too much shade will also cause scapes to lean toward the sun, especially when they are tall. Just sayin.....
It's always good to give new cultivars enough chance to establish. Creature of the Night is a wonderful clump here in my zone 6/7 garden.