The vegetables that are cheap all year

By Buffr LLC · Published September 1, 2026

“Eat seasonally” is good advice that stops being useful in February. Six vegetables are inexpensive in every month of the year, keep for weeks rather than days, and between them will carry most of a week’s cooking. If you are trying to hold a food budget down, these are the base and everything else is a variation on top of it.

They have a few things in common, and the reasons are worth understanding because they predict which other items will behave the same way. All six are either roots, bulbs, or tight heads. None of them is picked ripe and racing to spoil. All are mechanically harvested, stored at scale in controlled conditions, and shipped year-round from wherever is currently producing. The cost of storing them is low relative to their value, so there is no season in which supply collapses.

Potatoes

The cheapest source of calories in the shop, usually by a wide margin, and one of the few single ingredients that can be the substance of a meal rather than an accompaniment to one. A 5 lb bag runs $2.50 to $5 and feeds eight to ten as a side.

The main thing to get right is variety. Starchy russets fall apart when boiled, which is what you want for mash and roasting; waxy reds hold together, which is what you want in salads and gratins. Buying the wrong one and blaming the recipe is the most common potato failure. See potatoes for storage — light is the enemy, and a potato stored next to onions spoils faster.

Onions

Not a meal on their own, but close to a precondition for one. A 3 lb bag is $2.50 to $4.50 and lasts a month in a dark cupboard. Onions are the reason a cheap dish tastes like it was cooked rather than assembled, and there is no substitute for the time they need — properly caramelised onions take forty minutes and reduce to a quarter of their volume, and the shortcut versions do not taste the same.

Carrots

Under a dollar a pound almost everywhere, almost always, and they keep for a month in the fridge. They work raw, roasted, in a braise, and as the base of almost every stock and soup. Buy whole ones rather than the bagged “baby” carrots, which are the same vegetable whittled down, priced at roughly double, and drying out from the moment the bag is opened.

Cabbage

The most underrated vegetable in the shop on a cost-per-serving basis. A 2 lb head is often under $2, yields eight cups shredded, serves six to eight, and keeps for a month. It is good raw, braised, roasted in thick wedges, and fermented.

The one habit worth adopting is salting shredded cabbage for twenty minutes and squeezing it before it goes into anything raw — the texture goes from squeaky to genuinely crisp. Bagged coleslaw mix is the same vegetable at three to four times the price.

Celery

Cheap and stable at $2 to $3.50 a head, but the honest note is that most households waste half of it, because recipes want two ribs and the head has twelve. The saving is in using the whole thing rather than in the shelf price: the leaves are a herb and belong in stock and salads, and the tough outer ribs are fine cooked even when they are stringy raw.

Sweet potatoes

The nutritional outlier of the group and still $1 to $2 a pound, cheapest from October to January. Worth knowing that they are usually the dearer of the two potatoes per pound and considerably dearer per calorie, so they are a choice about what you want to eat rather than a cheaper alternative to potatoes.

What to add on top

The base above will not sustain interest on its own. The method that works is to keep the six as a standing purchase and let the seasonal items supply the variety — whatever is at its regional peak that month, bought in quantity while it is cheap and good.

That is the whole idea behind this site: the staples are the floor, and the weekly list tells you which two or three seasonal items are worth building around this week. This week’s produce sorted by price is the fastest way to see it, and the pantry that turns a produce sale into dinner covers what to keep on the shelf so a sale actually becomes a meal.

A note on frozen

Frozen vegetables are picked at peak and frozen within hours, which makes them nutritionally comparable to fresh and often better than fresh produce that has travelled for a week. For peas, corn, spinach, and green beans, frozen is cheaper year-round, does not spoil, and is genuinely the right answer for anything cooked. The place it fails is texture in raw applications, which is a real limit but a narrow one.

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