Leaf/plant problems

Question

What are the reasons for leaves or occasional stems of a plant going yellow, brown? How to prevent it, please? Thanks.

Answer 1

These articles may help: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
https://www.gardeningknowhow.com/plant-problems/environmental/what-causes-brown-edges-on-leaves-of-plant.htm