Women are taking over allotments and have more time to look after them because men are doing more domestic chores, the National Allotment Society has said.
A new study reveals women with allotment plots now outnumber men for the first time, bucking a long-term trend of allotment-keeping being the preserve of men.
In London, almost two thirds of plots - 64 per cent - are occupied by women, the study found.
The National Allotment Society estimates that half of holders nationally are now women - compared to two percent in 1973 and 20 per cent in 2003.
Diane Appleyard, a spokeswoman for the society, said men now have less time to tend to their plots because they do more household chores, freeing up women to grow fruit and veg.
"Life has changed. When it was predominantly men on sites, domestic roles were relatively defined. Now men probably have less time because they are doing more domestically,” she said.
"Looking at councils' allotment strategy reports and anecdotally, it would appear there are now at least as many, if not more, women on sites.”
"That is the case on my site, which is a big one with over 100 plots.
Ms Appleyard said female celebrity gardeners such as Charlie Dimmock have also fuelled women's interest in horticulture.
Appleyard added: "Once they see other women on sites, allotments become more attractive.
"And a lot of families are gardening together on allotments too."
Mark Todd, who manages plots for Newcastle City Council, said there is now an even gender balance on allotments, compared to 15 per cent in 2001.
Many women are now in charge of the committees of local associations that run sites for the council,” he said.
"A lot of the men over the years have said, 'it's our territory, our piece of land',” he said..
"But a lot of people now on sites are saying the books are up to date because women are keeping things in order."
"They are keen on sustainable, organic growing and wanting to know exactly where their food has come from,” he added.
A national study by Dr Tilly Collins and Ellen Fletcher of Imperial College London found that 63.7 per cent of holders of London’s 24,883 plots are now women.
The average age of holders was found to be 57, with men typically older than women.
Demand for allotments has quadrupled since 2006 with the average waiting list in London now five years, they found.
Camden Council scrapped its list after it emerged that more than 1,000 residents were waiting up to four decades for around 200 allotments.
And the list was similarly closed in nearby Islington because of a 14 year average wait for its 94 plots.
Jeremy Corbyn, the former Labour leader and Islington resident, instead holds an allotment plot in East Finchley and uses fruit he grows there to make jam.
In Brighton & Hove and Edinburgh, women account for 53 per cent of allotment holders and make up exactly half in Watford.
The study also found that only four London boroughs have an allotment strategy, and the rate of decline in allotment space in the capital has tripled in the last ten years.