system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does trimming plants make them grow stronger?
gpt
The plant gives equal energy and nutrients to all of it's leaves, flowers, and stems. When a  part of the plant is dead or dying it is still giving nutrients to that part - when that part is trimmed off the energy can't go there any more and can feed the rest of the plant. For a plant that has multiple stalks/trunks like a bush or tree, the energy has to be split amongst each part, but if you trim the plant down to only one stalk/branch/trunk then all the energy goes to the one that's left.