Especially this year, 2022 in Japan, we are having extraordinarily dry and hot second half of June. I am hearing some plants were damaged by lack of watering.
It looks like there are some biased information that curry leaf plants should not be watered so much. That is true for very young seedlings to overwinter. However that is not true in summer time or anywhere tropic or average temperature constantly above 25 degrees C.
I made a reference sheet for watering the plant by season to keep the plant healthy. I hope it will be some help to you all.
Conditions vary by size of pot and hours of sun lighting, therefore the sheet is a starting point for you to find the optimum watering for your plant.