My Turk's Cap is planted in clay soil with 2-3 inch rocks mixed in (think a previous owner way back had graveled that area for a parking pad). It is planted up against a privacy fence, gets Texas summer sun from around 8:00am to 2:30pm. Does need occasional supplemental water to keep it from wilting, but, even with neglect, it gamely comes back and gets a little larger every year.
