Does anyone have experience growing Pink Turk's Cap (not turk's cap lily). I just purchased it and it is supposed to grow in sun to partial shade but the spot I am considering planting it is under an arbor which gets about an hour of mid-day sun and then sun from about 4:00 pm on. The soil is moist, rich clay. Borderline on zones 6-7 in Oklahoma. This plant was introduced by Greg Grant from Texas. Any advice would be appreciated.