Why would my Japanese blueberry shrub lose leaves after turning red?

Question

Recently planted in Texas, hot. Watering daily to every other day.

Answer 1

Since it is newly planted (and hot), it is likely suffering from transplant shock. This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm