The father-of-three also posted a picture of his beautiful garden in full bloom ahead of the show.
The image showed a pink rambling rose weaving its way along a garden shed.
He captioned the photograph: “This rambler ‘apple blossom’ has really taken off in this, it’s third year.”
“So beautiful,” wrote several Instagram followers next to the picture.
“That is a perfectly lovely picture. Well done Monty, what a heavenly garden you have,” said another fan.