Stage trees if I recall were the subject of a series of science fiction stories. They grew as boosters essentially, ignited at some point to launch and spread their seeds. If they grew for a long time without igniting, they might leave the planet.
'The Integral Trees' also had trees in space.
The unlikeliness of the wooden spaceship was one of my favorite parts of the sci-fi mystery/adventure game “The Outer Wilds”. (An indie gem…highly recommended, if you like puzzles or exploration.)