I've been trying to find one single word that covers knowledge concerning both the properties and cultivation of plants, but have come short with some words.
Here are some of the words I thought of, but eventually found lacking:
Botany: I feel this implies purely scientific research on plants, ignoring the cultivation of plants and things like crop rotations and irrigation techniques.
Agriculture: I think this word only covers food crops and plants commonly grown for decoration. I feel it misses out on the more thorough knowledge of all (not just commonly cultivated) plants, including currently unknown ones.
Ultimately, I'm looking for a word that encompasses the subjects of both Botany and Agriculture, but have come short for now.