How Many Kinds Of Onions Are There? | More Than Yellow

The full onion list stretches well past the few kinds sold in most stores, with many named cultivars and several main kitchen types.

Ask three people this question and you may get three different answers. A cook may say five or six. A gardener may say three day-length groups plus a stack of named varieties. A seed catalog can run much longer than either of those.

That gap is the whole story. If you mean the onions most people buy and cook with, the count is short and easy to grasp. If you mean every named cultivar grown around the world, the number climbs into the hundreds. So the honest answer is not one fixed number. It depends on what you are counting.

For daily cooking, you can think in about eight or nine common kinds: yellow, red, white, sweet, scallions, shallots, pearl onions, cipollini onions, and a few multiplying or potato-onion types. That covers the onions most shoppers, cooks, and home gardeners run into.

Why The Number Changes

Onions can be sorted in a few different ways, and each method gives you a new total. That is why one source sounds small and another sounds huge.

• Kitchen type: yellow, red, white, sweet, scallion, shallot, pearl, and cipollini are the names most people know.
• Growth type: bulb onions, bunching onions, and multiplying onions are grouped by how they grow.
• Day length: growers sort bulb onions into short-day, intermediate-day, and long-day types.
• Cultivar name: labels such as Vidalia, Walla Walla, Candy, Copra, and Red Zeppelin narrow the count even more.

So when someone asks how many kinds of onions there are, the best move is to pin down the level. Are we talking about store shelves, garden planning, or the full catalog of named onions? Once you do that, the answer stops wobbling around.

How Many Kinds Of Onions Are There? A Useful Way To Count

If your goal is cooking, meal planning, or making sense of the produce aisle, use the short list. It gets you where you need to go without turning a simple food question into a seed-bank project.

That short list starts with the three dry bulb onions most people know: yellow, red, and white. Then come sweet onions, which are mild and juicy; scallions or green onions, which are picked young; shallots, which have a finer, layered bulb; pearl onions, which are tiny and round; and cipollini onions, which are squat, flat, and sweet when cooked.

Gardeners need one more layer. Bulb onions are also sorted by how much daylight they need before the bulb starts to swell. Oregon State’s page on Types of Onions and Varieties breaks bulb onions into short-day, intermediate-day, and long-day groups. That split matters because the same onion can thrive in one region and flop in another.

In plain terms, that means one “kind” of onion can belong to more than one bucket at once. A red onion can also be long-day. A sweet onion can also be short-day. A shallot can be counted as its own kitchen type even when a shopper sees it sitting right next to red and yellow bulbs.

So the cleanest everyday answer is this: there are many named onion cultivars, but most people use a manageable set of common types. That is the answer readers usually want when they are standing in a store, planning a garden, or trying to match an onion to a recipe.

Onion Type	Flavor And Texture	Best Uses
Yellow onion	Balanced bite, turns sweet as it cooks	Soups, sauces, roasting, sautéing, caramelizing
Red onion	Sharper raw bite, bright color	Salads, burgers, pickling, grilling
White onion	Crisp, clean, punchy	Salsas, tacos, stir-fries, fast cooking
Sweet onion	Mild, juicy, less sulfur bite	Raw slices, onion rings, roasting
Scallion or green onion	Fresh, grassy, mild	Garnish, eggs, noodles, dressings
Shallot	Fine texture, mellow onion-garlic note	Vinaigrettes, pan sauces, butter sauces
Pearl onion	Small, sweet, tender when braised	Stews, glazed sides, roasting whole
Cipollini onion	Flat bulb, sweet and rich when cooked	Roasting, braising, sheet-pan meals

That kitchen list is not the same as the full onion family tree. Yellow, red, white, and sweet onions are usually all bulb onions. Their color, bite, and storage life differ, yet they are still close cousins at the crop level. The Onion Color, Flavor, Usage Guide from the National Onion Association shows that color and intended use can split one broad crop into several shopper-friendly categories.

What Counts As A Different Onion

This is where the count gets wider. Some names describe color. Some describe shape. Some describe where the onion was grown. Some describe how long it keeps in storage. And some names refer to a single cultivar, not a whole class.

Take sweet onions. That label sounds like one kind, but it covers several well-known names. Vidalia is a sweet onion tied to a growing region in Georgia. Walla Walla is another sweet onion, tied to Washington State. Other sweet onions may be sold under names such as Maui or Texas 1015. In the kitchen they feel related. In seed catalogs or farm markets they may be split apart.

The same thing happens with storage onions. A cook may call them all “yellow onions,” while a grower splits them by keeping quality, skin thickness, and harvest timing. Iowa State notes on its page about which onion varieties are best for storage that some cultivars hold up much longer than others. That matters in the cellar, even if two bulbs look alike in a bin.

Then there are onions that blur the line between type and stage. Scallions, spring onions, and green onions can overlap in everyday speech. A scallion is usually slim and barely bulbous. A spring onion often has a small swelling bulb. Both taste fresher and milder than a cured dry onion. So one shopper may count them as separate kinds, while another folds them into one bucket.

Shallots create another split. Some people treat them as just small onions. In cooking, that shortcut works well enough. But shallots have their own shape, tighter cluster growth, and a flavor that lands softer and slightly sweeter than many bulb onions. Most cooks feel the difference right away in dressings, pan sauces, and slow-cooked shallot butter.

How Store Labels And Garden Labels Differ

Store labels are built for speed. They tell you what the onion will taste like and what it may do in a pan. Garden labels are built for performance. They tell you if the plant will bulb in your latitude, whether it stores well, and when it should be planted.

That is why a grocery shelf can make onions seem simple, while a seed rack makes them seem endless. Neither one is wrong. They are just answering different questions.

Counting Method	What It Tells You	Sample Labels
Color	Raw bite, sweetness, visual use	Yellow, red, white
Harvest Stage	Young green tops or cured mature bulb	Scallion, spring onion, dry onion
Flavor Style	Mild or pungent eating profile	Sweet onion, storage onion
Growth Pattern	Single bulb, bunching, or multiplying habit	Bulb onion, bunching onion, potato onion
Day Length	Where the variety bulbs well	Short-day, intermediate-day, long-day
Cultivar Or Region	Named line or place-linked onion	Vidalia, Walla Walla, Candy, Copra

The Answer Most Readers Actually Need

If you want one answer that fits normal cooking talk, say there are about eight to nine common kinds of onions people use all the time. That gets the job done and matches what most shoppers can buy without hunting through seed lists.

If you want the fuller answer, say there are many more than that because onions can be grouped by color, harvest stage, day length, storage life, region, and cultivar name. That is why the count can swing from a short kitchen list to a much longer grower’s list.

Here is the easiest way to sort them in daily life:

1. If the recipe needs depth and sweetness after cooking, grab a yellow onion.
2. If you want bite and color raw, grab a red onion.
3. If you want a crisp, sharp onion for tacos or salsa, reach for white.
4. If you want mild slices or onion rings, sweet onions fit best.
5. If you want fresh, green onion flavor, use scallions.
6. If you want a softer, finer onion note, use shallots.

So, how many kinds of onions are there? In the kitchen, a short list works. In gardens and seed catalogs, the list gets much longer. Both answers are right. They are just counting from different angles.