Which rose bush was his wife-Riddle

Once there was an evil wizard. He kidnapped Aalia, Riya and Sanjana from their homes and turned them into rose bushes that looked exactly alike and put them in his garden. Among these women, Alia had a husband and children and begged the wizard to let her see them. He agreed. At night he brought the woman to her house. In the morning he came and took her home. The husband decided to go rescue her. So, he snuck into the wizard?s garden early in the morning. He stared long and hard at the three identical rose bushes trying to figure out which could be his wife. Suddenly he knew the answer and he took his wife home. How did he know which rose bush was his wife Aalia?