An Assorted Onion collection includes different types of onions such as yellow, red, white, and green onions. Some mixes may also include sweet onions or shallots. Each onion has its own color, size, and flavor. Some are mild and sweet, while others have a stronger taste. Growing an assorted onion collection gives you more choice from one planting. These onions can be used fresh or cooked and are great for salads, soups, and everyday home meals.