All 145 branches of the Wyevale Garden Centre chain are being put up for sale.
There are six outlets in Kent including the one at Chartham on the A28 between Canterbury and Ashford.
The news comes as the group records strong sales and performance, particularly after the May Bank Holidays.
There are also Wyevale branches in Ramsgate, Ashford, Gillingham, Paddock Wood and Tunbridge Wells.
Estate agency Christie & Co is handling the sale on behalf of private equity firm Terra Firma.
Chris Day, global managing director at the agency, said: “The sale of Wyevale Garden Centres presents a unique opportunity for a wide range of buyers from financial institutions, existing garden centre operators, independent business people and entrepreneurs to buy well invested local garden centres within the price range of £200k to £35m.”
The Chartham store is on offer at £500,000 for the leasehold.
Wyevale chief exec Roger Mclaughlan, said: “This investment provides a fantastic opportunity for new long-term owners looking to enter the market and existing operators seeking to expand their current operations.
“Wyevale Garden Centres has been transformed beyond recognition over the last few years, and our customers are responding really positively to all the improvements we’ve been making, with improved ranges, high stock availability and exceptional garden centre standards.
“Our improved business has engaged colleagues and put customers at the heart of what we do. Thanks to the hard work of all of our colleagues, we remain firmly on track to grow our sales and profits this year.”
The Wyevale sites range in size from one to 132 acres. Many, like the Chartham outlet, have restaurants and cafes attached to them. Some 6,000 people are employed at the firm.