Form: The natural form of pothos is a trailing vine. It can get very leggy if left unpruned and if allowed to dry out too drastically, the older leaves will yellow and wither, leaving the vine stripped at the base, with leaves only on the new growth. Pruning will keep the plant fuller.
Pothos vines will not cling to trellises and supports on their own, but they can be twined onto them and appear to grow upward.