Original: Garlic is a common example, a branch of wild rose and hawthorn plant are said to harm vampires, and in Europe, sprinkling mustard seeds on the roof of a house was said to keep them away.
Simplified: In stories, garlic is often used for keeping vampires away. A branch of wild rose and hawthorn plant are said to hurt vampires, and in Europe, putting mustard seeds on the roof of a house was said to keep them away.