The main purpose of a watering can is to facilitate the watering of plants and gardens. It allows gardeners and plant enthusiasts to distribute water evenly to soil or directly onto plants, ensuring that they receive the necessary hydration for growth. Watering cans come in various sizes and styles, often featuring a spout and handle for easy pouring. Some cans also have detachable rose attachments that distribute water in a gentle, shower-like manner, making it suitable for delicate plants and seedlings.