Clematis: Do I need to move my John Paul II to a sunnier spot?, 1 by ClematisGuru

ClematisGuru wrote:
the pope can go full sun or partial. in partial the blooms have more pastel coloration than when they are in full sun.
the pope is very vigorous, but has a fussy streak and can die back and re grow several times in one season here at my place in zone 5. with the pope, i can never explain what caused the die back, it is not clematis wilt..just a mystery within the plant i think. always different variables to this. that said, it is pretty reliable and can grow 6 to 8 feet in a season with long lasting, meduim sized blooms of up to 6 or 7 inches across.
you mentioned a clematis disappearing..keep the spot marked for at least 18 months, or two seasons. some hardy but not vigorous plants can take awhile to come back.