Plumeria is relatively drought-tolerant once established, but regular watering is still essential, especially during the growing season. Drought conditions can lead to stress and reduced flower production. During prolonged dry periods, water your Plumeria deeply to ensure the roots receive adequate moisture. Mulching around the base of the plant can help retain soil moisture and protect the roots during dry spells. Monitor your Plumeria closely during droughts and adjust watering as needed to prevent wilting and stress.