In view of his 209,000 followers, Monty replied: “I do NOT use hair colour! But very amused at the idea.”

The social media user didn’t appear convinced, as they penned: “Ummm not sure!”

Monty cheekily joked: “But you failed to spot the botox, the face lift, nose job, eye tuck, hair implants or the major dental reconstruction, so can you be absolutely certain about the hair?”

The person in question admitted they were joking around with the horticulturalist.