Avocado trees are well suited for southern california.
12+ Avocado Plant Losing Leaves. Recently completely green and healthy looking leaves have started to fall off. Avocado tree roots like to spread out and do not deal well with crowding.
Mine have lost all of their leaves before and they come back. If your avocado tree is affected by phytophthora cinnamon, it may eventually decline and die. May be you just need to put some avocado leaves in your salad, soup or even your smoothies.
This is very specific to avocado trees in general.
Avocado leaves contain the antioxidant which can help to clean the skin and pore. Use clean nursery stock small, pale green, wilted leaves. Sometimes avocado leaves turn brown because of the accumulation of chloride and sodium salts. I have an avocado tree that i grew from a seed that i got from the grocery store.