The company, working with University of Sheffield's Green Roof Centre, has developed a method of growing plug plants for green roofs.
Project developer Maggie Fennell said: "We know our plugs are going to be a real hit because they will precisely match people's needs.
"People want green roofs for a number of reasons, from creating a pretty space within a built-up area to helping the environment. We can provide different plants depending on these requirements and we know these roofs will work well for many years to come.
"We have also been working with soil experts at the university to develop substrates, which we hope to offer in the near future."
The team is working on a DIY guide for homeowners to build their own green roofs.