For the year ending June 30 2016, the company generated an EBITDA of £2.1m, up from £0.85m in 2015. Turnover has increased to £34m from £32m in the prior year.
The company has "benefited from more efficient operations as its investment in industry-leading IT pays off, along with a shift away from traditional catalogues to a more web based marketing platform.
"In addition, the company has increased the range of products that it offers online and now has the widest range available to gardeners in the UK."
The Ipswich based retailer says it "dominates the online market, with its websites receiving double the number of visitors of its nearest competitor, 16.4m visits according to Hitwise figures.
It has its own breeding operation and has developed plants such as Buddleia Buzz and Foxglove Illumination.
Branded Garden Products, which has the principal activity of selling T&M and other branded products, had sales of £32m to 20 June 2015, according to its latest submitted results, up from £31.6m in 2014 - a one per cent increase. Group total loss for the year after tax was £1.312m, down from a loss before tax of £1.587m in the previous year.