The Queen's subtle tribute to Meghan and Harry at Chelsea Flower Show

The Queen attended the preview of the Chelsea Flower Show on Monday night.

Her Majesty, 93, has been Patron of The Royal Horticultural Society since 1952 and has attended almost every year with other members of the Royal Family.

During her visit, the Queen was given a tour of the Duchess of Cambridge’s ‘Back to Nature’ garden she co-designed with Andree Davies and Adam White.

Her sons Prince Edward and Prince Andrew were also in attendance, as were Sophie, Countess of Wessex, Princess Beatrice, Prince and Princess Michael of Kent and Princess Alexandra.

The Duke and Duchess of Sussex were not present at the event, as Meghan gave birth to baby Archie Harrison Mountbatten-Windsor on May 6.

But the Queen appeared to pay a subtle tribute to one of her favourite grandchildren through her outfit choice.

READ MORE: Duchess of Cambridge wears dress previously worn by 86-year-old Duchess of Kent to Chelsea Flower Show opening

The monarch wore the same floral printed dress and lime coat by Stewart Parvin to the Chelsea Flower Show, that she donned for Meghan and Harry’s wedding at St George’s Chapel in Windsor in May last year.

READ MORE: Nervous Kate spotted picking up leaves in Chelsea Flower Show garden before Queen's arrival

It’s been said that Queen and grandson Harry have always had a close relationship and he often makes her laugh in public.

The pair were spotted having a moment together at Lady Gabriella Windsor and Thomas Kingston’s wedding on Saturday.

While Meghan is expected to remain on maternity leave for the summer, Harry has still been carrying out engagements.

Earlier this month, the duke travelled to The Hague in the Netherlands to launch the one-year countdown to the Invictus Games. He also spent the day in Oxford, where he visited a children’s hospital.

This week, he will play in the Sentebale Polo Cup in Rome.