Mrs Windsor enjoys the roses most in her garden, while her husband admits to preferring the vegetable garden.
"Once you have roses, you have them for years - you can't kill them," Mrs Windsor said.
"They are a lot of work but they're worth it. Some of my rose bushes are 40 years old."
Mr Windsor has gardening in his blood. "I come from a long line of farmers and horticulturists."
Their property is on low land near the river and although flooding has occasionally threatened it, they've never had any flood damage.
A recent operation has limited Mrs Windsor's time in the garden, but fortunately their eldest daughter is also a keen gardener. She helps the couple and their neighbours.