Grumichama losing its leaves

[Josito]

Hi folks

Any one knows what can be happen to my grumichama, starte lossing the lea es, but new speouds are Brown and the they drop

[achetadomestica]

The remaining leaves at the bottom look fairly yellow
I put sulphur pellets on my grumichama to lower ph every month and it
helps keep the leaves dark green. At this point I would put your
tree in 100% shade. I have not had good luck when my grumichamas
go downhill.

[fruit nerd]

In my experience, grumichama are pretty tough. I have two mature trees which I rarely water and they seem to fruit reliably where I am. I also have a young grumichama in the ground with no protection and infrequent watering which is doing okay.