Lidl is the latest supermarket to introduce limits on sales of certain fruit and vegetables due to shortages of fresh produce.
The company is putting limits of three per customer on sales of peppers, tomatoes and cucumbers, due to "a recent increase in demand".
It follows similar moves by Tesco, Aldi, Asda and Morrisons, with some consumers facing empty shelves.
Supermarkets are facing problems after extreme weather hit harvests abroad.
A Lidl spokesperson told the BBC that "adverse weather conditions in Spain and Morocco" had impacted the availability of certain salad items.
"Whilst we still have good availability across the majority of our stores, due to a recent increase in demand we have taken the decision to temporarily limit the purchase of peppers, tomatoes and cucumbers to three items per person," said Lidl. "This will help to ensure that all of our customers have access to the products they need."
Sainsbury's, Co-op, M&S and Waitrose have not announced any limits.
Why is there a shortage of tomatoes in the UK?
Salad shortages 'to last four weeks', says Eustice
Tesco and Aldi limit tomatoes and some vegetables
Food and farming minister Mark Spencer will hold a video meeting with the bosses of UK supermarkets on Monday at 5pm.
He said he aims to "find out what they are doing to get shelves stocked again and to outline how we can avoid a repeat of this".
He blamed "recent poor weather in North Africa" for the problems.
Most other European countries appear to be less impacted.
Pictures on social media have shown supermarket shelves across continental Europe still full with fresh produce.
It has led to speculation that Brexit could be the reason why the UK is bearing the brunt of the shortages.
Wholesalers, importers and retailers that the BBC has spoken to suggested the picture is nuanced, with the UK facing specific issues. For instance, it has lower domestic production and more complex supply chains.
But others have pointed out that even if Brexit is not the main reason for the problems, it won't have helped.
Ksenija Simovic, a senior policy adviser at Copa-Cogeca, a group which represents farmers and farming co-operatives in the EU, said that when shortages occur, then it makes sense that whatever produce is available is more likely to stay within the Single Market.
How long will the shortages last?
On Sunday, former environment secretary George Eustice said the shortages would last for "three to four weeks".
But producers have warned they could go on for longer.
The Lea Valley Growers Association (LVGA), which has members across Greater London, Hertfordshire and Essex, said growers had delayed planting crops this season because of soaring energy prices, as well as low prices that supermarkets had offered for their produce.
Lee Stiles, secretary of the LVGA, said: "The majority of tomatoes, peppers and aubergines are not going to be around in big volumes until May, so it's going to be longer than a few weeks."
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