Bents managing director Matthew Bent said the Green Fingers to Green Issues statement took two months to develop and identifies five Green Footprints - areas where it is thought the business can make a difference and help to maintain sustainability.
He said: "The buzzwords at this year's GCA Conference were climate change and carbon footprints, and we all left with a duty to tackle these issues head on. We had already been working hard to clarify our commitment and thought now was the ideal time to launch our new statement.
Bent added: "We believe our Green Fingers to Green Issues statement, which incorporates our Green Footprints, demonstrates a strong commitment to the environment, both in terms of the climate and our social responsibility."
A "green ambassador" will be appointed to monitor the Green Footprints and research new ways to enhance the company's commitment.
The Green Footprints cover issues including: recycling; water efficiency; healthy living to encourage customers to discover what's right for them; social responsibility through seeking ways to support the local community; and trading fairly and responsibly with all suppliers.
Bent said the company and the industry were working hard to maintain their reputation for being environmentally friendly.