Landscape design styles for backyards often vary, reflecting the personal preferences and the local climate. Common styles include traditional, modern, Zen, and tropical. Each style emphasizes different elements such as plants, water features, and hardscaping. Traditional styles may incorporate classic gardening techniques, while modern styles emphasize simplicity and functionality. Zen gardens focus on harmony and minimalism, often using rock and sand. Tropical styles are vibrant and lush, utilizing a variety of colorful plants.