The leaves of my Mexican orange blossom (Aztec pearl) are browning (and others are yellowing, but not a lot). I did not find any pests on it. At the beginning, I had only one or two leaves like that, but since last week, a lot more have begun browning. There are also a lot of new leaves at the top.
I try not to overwater by checking the humidity with a tool, but I admit I have overwatered other plants in the past. The pot does have drainage (made of wood and geotextile so the water can run between two planks) but is quite big. The soil is a mix of garden soil, potting soil and compost and also some clay balls).
It's currently very hot and sunny in my country (like 30°C, zone 8b), and my balcony is facing west. The plant must have around 6hours of full sun per day.
Could it be a disease or just too much sun?
by Alea37