I have one villager who is an Adept Doctor. He has been working on studying one of the 6 plants for about 100+ tries now and I still have not received the message that the plant has been mastered. These are my questions:
1. Is it possible to master a plant by revisiting it over and over?
2. Do you need to keep working on one plant exclusively or is it better to rotate between plants (aka. which is faster)?