Question in Ningbo, Zhejiang: How to manage potted Helan in winter?

A: Potted Hedyotis diffusa will not cause freezing damage if it is placed at room temperature not lower than 0℃, but it will not bloom normally. In order to make it bloom smoothly, it can be moved into a double-layer plastic greenhouse, keeping the temperature around 10℃, watering less to keep the soil moist, giving necessary ventilation every day, and supplementing light in rainy days to make it bloom normally in winter. After the flowers bloom, you can move to Tang Ming to watch them.