Note
If you enclose a tree, it's in trouble.
Breakdown of trouble
tree; wood
木
enclosure
囗 component
The enclosure component looks the same as the mouth kanji. Unlike mouth, this component is not a kanji by itself. When the enclosure component is used inside a kanji, another component is enclosed within it.
Usages of trouble
困るkomaru
to be troubled; to have difficulty
