system
Given the following post, respond as if you're commenting on Reddit:
human
Can you grow a plant just by the light from a wood fire?

Also, would there be a difference in growing a plant by a wood fire or a natural gas fire, given both flames were the same general brightness?

Is it possible to grow food by that firelight?
gpt
Photosynthesis requires at least blue and a little deep red (green is actually thrown back unused).

Firelight is 1700K-2000k, very skewed towards red and infrared.  There is very little blue.  You might cook your plants with infrared heat before making enough blue at that color temp.