My plants are 13 days into grow and I have one that is growing very fast I was wondering are there any growth milestones which would indicate it's time to transplant and avoid root bound plants I included a picture of the plant I'm considering transplanting in the next week please give me your thoughts!
The small one is a bit small still, if the pot is large then it might get a bit drowned out, so maybe hold back on that one a little longer. The bigger ones could go, they look pretty sturdy. I usually keep an eye out for roots peeping at the drainage holes, but sometimes I carefully turn the plants out of the smaller pot and just see what the situation is down there.