system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Can plants get old and die? What usually determines the lifespan of an individual plant? Theoretically, if conditions were kept properly could you keep a plant alive forever?
gpt
1. Yes, they can get old and die in a sense. Typically in the from of degenerative diseases.


2. Lots of factors. Evolution, genetics, environment. Some can live for thousands of years, some live only a few months. 


3. You can theoretically take what's called a "cutting" of some plants and keep it going forever if conditions are kept right. But you need to constantly take a cutting every now and again and grow a new plant.