"It doesn't seem to be a major consideration yet, although I would say clients seem to be much more aware of environmental issues in general.
"They are asking questions about how they can implement water irrigation systems and rainwater harvesting systems.
"But I think it will take a while longer before it really takes off especially because people don't have so much money to spend at the moment."
Victoria Pustygina, London Planters
"It is slowly becoming more of a priority. Peat seems to be a real issue for many people. A lot of clients are asking for peat-free products for their gardens.
"They are also very concerned about whether we are behaving in an environmentally-friendly manner within the company - asking where we source things from and whether our products are sustainable.
"Clients are certainly asking for advice about how they can be more green."
Steve Malsher, Nicholsons Landscapes
"Certainly more people are showing an interest as there is more media coverage about green issues, but they are worried about the cost.
"We have been asked to create wildlife log piles and ponds to develop new habitats.
"I like to encourage people to have green elements in their gardens, especially if they have children, because it is vital for us to educate future generations about environmental issues."
Catharina Malmberg-Snodgrass, CMS Design Associates
"There is definitely more interest in anything that is green.
"One of our clients wants to keep bees so we have designed a planting system to sustain the bees because they need three-season flowering.
"Green roofs and living walls are becoming popular at the moment as well, both for aesthetic reasons but also for their heat-retaining properties. There is also a real interest in rainwater harvesting."
Christine Bagley, Indoor Garden Design Outdoors.