Pothos
When I planted a live pothos plant in the tree frog's habitat, I also added a moss pole. The column of damp moss would be the perfect place for new roots to settle in and the plant could grow vertically. Months later, the plant had not anchored in the moss despite my gentle encouragement. The stem still flopped down unless it was tied to the pole. Then I noticed another stem standing tall against the back of the habitat. I poked at it. It didn't budge, like it was cemented in. The plant didn't like my custom moss pole, but it's roots found firm footing in the painted foam backdrop!