He said: “How on earth can you be a garden centre that’s advising your customers not to buy from you?”
He added he has advised other garden retailers to follow suit.
In response to the backlash, a Gardeners’ World magazine spokesperson told the publication: “In his regular column in the November issue of BBC Gardeners’ World Magazine, Monty Don wrote of the need for gardeners to grow in harmony with the environment and reduce the risk of plant extinctions as a result of climate change.
“Monty called on both gardeners and the trade to find new alternatives to the use of peat, to help minimise gardening’s climate change impact.
“This is an area of enormous interest and concern to readers, and we also understand the depth of debate across the horticultural industry, as it seeks out ways to mitigate environmental damage.