The latest came at the Hampton Court Palace flower show and follows gold medals at the Chelsea Flower Show in May and at BBC Gardeners' World Live in June.
On top of that, the new Rose Pearl by Mattocks Roses (owned by Notcutts) was one of the new roses presented to the press by Rachel de Thame at Hampton Court this month.
"Winning a gold medal at each of these top shows is a monumental achievement for everyone involved, from the designers, nursery staff and everyone who worked on the exhibit, including staff from the garden centre," said Mark Vaughan, Notcutts garden centre manager at Bagshot.
To win gold medals at three successive shows, Notcutts had to show plants in top condition over seven weeks, transporting them and other materials across the country.
Rose Pearl is an exciting new floribunda for 2002, producing masses of pearl pink flowers throughout summer that are, most unusually, almost camellia-like in form.
A delightful soft fragrance accompanies the flowers, which are produced throughout the summer and well into autumn.
The robust foliage is extremely disease-resistant and grows 3ft high and 2ft wide.
Rose Pearl is available at all 13 Notcutts garden centres.
Television gardener Rachel de Thame is pictured with the Rose Pearl.