“He left the Army and became a welfare officer. He works for an organisation that supports veterans who at their time of leaving didn’t have the support that is available now.”

Nathan was six weeks into his third tour of duty in Afghanistan in 2009, when he was caught in a blast while leading a foot patrol in Helmand Province.

He lost both legs, but, despite his injuries, Nathan, continued to direct his young and inexperienced Grenadier Guardsmen.

Nathan went on to make an inspirational recovery. In 2010, he kept a promise to Rachael, and, on prosthetics, walked with her down the aisle on their wedding day.

The same year he completed Newark Half-marathon and has used sport to rebuild his life. He took up rallying and also represented Great Britain twice in the Invictus Games, championed by Prince Harry.

Having left the Army, he now works with the Defence Medical Welfare Service (DMWS) on a project that supports veterans aged over 65 who are in hospital, and their families.

Nathan said the first he knew of a possible garden make-over was when he received a call from Maureen Haley-McDonald, of Newark Patriotic Fund, a charity that supports serving and former Forces personnel.

He was interviewed by a producer but never expected anything to come of it.

“Then I was at work at the Queen’s Medical Centre and the door opened, and an arm and a head popped through and there was Alan Titchmarsh,” Nathan said.

“‘I have come to do your garden’ he said.

“After that it has all been a bit of a whirlwind.”

Nathan and his family stayed in a hotel while the garden was transformed. The  result was due to be revealed to them yesterday.

The public can see the result when the show is aired on ITV in the summer.

Alan would only say that it was a family-friendly space, sensitive to Nathan’s mobility problems and with plenty of space for entertaining.

Alan said: “We don’t breeze in and do what we want to do. It isn’t about imposing our will on the recipient. It is about listening to them and understanding their needs and what will make them happy.”

by Dan Churcher, Newark Advertiser