Plants make their own sunscreen: https://www.purdue.edu/newsroom/releases/2014/Q4/study-gets-to-the-roots-of-plants-natural-sunscreen.html
If you transplant a plant from low sun exposure to high exposure, they can get sunburned. This can be deadly for young plants. Slowly exposing sun or blocking full sunlight is recommended to help the young plant adapt to the new sunlight levels.
Latest Answers