Vegetable prices in 2026: why eating in season doesn't always save money

Lettuce +57% and carrots +26% at the farm gate, but leeks and courgettes getting cheaper: this autumn, the calendar doesn't tell the whole story. Five habits to adapt menus and shopping.

Eating in season is still a good habit. This autumn, it does not always lighten the grocery bill.

After a summer of heatwaves and drought, several seasonal vegetables are in short supply in France. Producer prices for lettuce and carrots have risen sharply. But not every autumn vegetable follows the same curve: some, like leeks or courgettes, are actually getting cheaper, for lack of buyers.

So the lesson is not "seasonal eating no longer works". It is that the calendar is not enough: you also need to check which vegetables are expensive this week, and keep menus flexible enough to swap them before you shop.

What the figures actually say

The Infos rapides notes from Agreste, the statistical service of the French Ministry of Agriculture, measure prices paid to farmers, well before the shop. A 57% rise at the farm gate does not mean your lettuce costs 57% more on the shelf: transport, packaging and margins soften or distort the gap. What these figures do say, clearly, is that French supply is under strain.

Lettuce: the hardest-hit crop

According to forecasts closed on 1 October 2026, France would produce 389.7 million heads of lettuce (batavia, cut lettuce, other head lettuces, romaine) over the 2026-2027 campaign, 8% less than the previous one, even though the planted area rose slightly. Summer production fell by 25%: leaf burn and lettuces bolting too fast during the heatwaves, then a lack of water in September.

Prices hit record highs in July and August. In September they were still 57% above September 2025 and 54% above the 2021-2025 average, despite easing slightly at the end of the month. To make up the gap, lettuce imports jumped 39% between May and August.

Carrots: a good spring, a lean autumn

Early carrots in May and June gave good volumes. It is the main-season carrots, sown in heat and drought since late May, that are falling short: yields down about 20% in August and September. For the fresh market, Agreste expects 335,100 tonnes, 43,000 tonnes less than the previous campaign (-11%).

In September, producer prices were 26% above 2025 and the five-year average. Notably, consumption was actually down. Demand is not pushing prices up; supply is missing.

This autumn: what is expensive, and what is less so

FranceAgriMer's market note for September 2026 completes the picture. Supplies remain below normal for cauliflower, leeks, carrots and onions, with sizes hit by the lack of water. But demand is sluggish, held back by early-month heat and the last summer fruit. The result is two opposite situations:

tight markets, firm or high prices: lettuce, tomatoes, potatoes;
falling prices despite limited supply: leeks, artichokes, courgettes.

In other words, the same autumn month can make lettuce expensive and leeks affordable. That is exactly what a seasonal calendar does not tell you, and what a glance at the price tags reveals.

Our guide to eating in season still stands: more local produce, fewer heated greenhouses, more flavour. It simply becomes incomplete if you stop there. In September, we also showed how frozen and tinned vegetables protect the budget when fresh prices soar.

5 habits to keep vegetables on the plate without blowing the budget

1. Plan a backup from the menu stage

Is the side salad getting expensive? Grated red cabbage or carrots, chicory, or pan-fried courgettes can take over depending on current prices. Soups, gratins and quiches accept almost any other vegetable.

The trick is to write down the alternative when you plan the menu, rather than improvising in front of the stall. You keep your shopping list, and you already know what to pick if your first choice is overpriced.

2. Compare the price per kilo, not the promotional label

A bag of pre-cut vegetables can look smart. Per kilo, it is often much more expensive than the raw product, even once prep time and peelings are taken into account.

"3 for 2" deals only save money if all three actually get cooked.

3. Make the same vegetable work across several meals

A cabbage for a stir-fry, then a soup two days later. Carrots in a curry, then in a gratin. Onions everywhere.

Fewer "single-recipe" purchases, fewer forgotten leftovers at the bottom of the crisper drawer.

4. Buy loose when quantity matters

Two recipes needing 300 g and 400 g of carrots add up to 700 g, not two 1 kg bags. Loose, you take exactly what you need. Bagged, the bigger pack is only a bargain if it is really cheaper per kilo and the surplus already has a use that week. Otherwise the low price per kilo ends up in the compost.

5. Plan the menu before you walk into the shop

Improvising every evening multiplies emergency purchases and makes you forget what is already waiting in the fridge. Planning the week's meals, with their backups, reverses the usual order: you no longer fill the trolley first and wonder what to cook afterwards.

An example: three meals, shared vegetables

For four people, you could line up:

Monday: vegetable soup with white bean toasts (potatoes, leek, carrots);
Wednesday: butternut and chickpea curry with rice (butternut squash, onions, chickpeas);
Friday: a potato gratin with leeks and onions.

Potatoes, leeks and onions each appear twice, and leeks are among the vegetables whose prices are currently falling. If a vegetable soars, you replace it before shopping, not once the trolley is full.

What GustoPlan does (and what it doesn't)

GustoPlan does not negotiate the price of lettuce for you, and it does not know the price tags in your shop. It works on what happens before the trolley:

a weekly menu suited to your household, your tastes, your constraints, and your priority between budget and balance;
with the Confort plan, a dish that doesn't suit you can be replaced before you shop;
also with Confort, quantities are calculated for the number of servings and gathered in a shopping list sorted by aisle, from which you remove what you already have. Salt, pepper and oil are set apart, so you don't rebuy them out of habit.

The list shows no prices, and that is deliberate: what you actually pay depends on the pack size you choose in the shop. Comparing price tags is still up to you; GustoPlan handles the rest.

This week, why not start by writing down three meals before filling the basket?