No, they grow around the Mediterranean in dry conditions.

On the other hand, if you have them in containers, where the roots can't spread, they may need watering every day in hot weather. For the ones in the ground, here we give them a deep soaking once a month in the summer, and they are happy. If your summers don't run to 45º+ C, with humidity running around 15%, you can water them less often, and they may even live off rainfall.