They say love makes you bloom and this certainly seems to be the case for Prince Charles.
His occasionally worldweary expression was lightened with a hint of fuschia and he was as chirpy as a robin as he mingled with the crowds at the NEC yesterday.
Even I, a member of the much-maligned media pack, was surprised when the Prince crossed an ornamental bridge with his wife, and said jovially: "Just having a have a look around."
Yes, love was definitely in the air as the Prince of Wales toured the BBC Gardeners' World Live show with the Duchess of Cornwall.
One of the opening day's highlights was when Camilla received a soft pink rose, which matched her outfit for the day, in her honour to a round of applause.
Marilyn Stevens, from Roses UK, said it was an absolute privilege to present the Duchess with the special rose.
Ms Stevens said: "We were given royal permission about six weeks ago to name the rose after the Duchess.
"In the beginning we sent some photographs to Clarence House and she selected the rose.
"It has a spicy fragrance, a beautiful shape and form, and has shown good disease resistance.
"We are pleased to see that the rose is still the nation's favourite plant," she added.
The royal couple brought sections of the halls to a complete standstill as they toured some of the hundreds of displays throughout the morning and afternoon.
Camilla, looking radiant in a two-piece pink suit and beige shoes, was also presented with a bouquet of flowers by fiveyearold Katie Maycoss from St Andrew's Benn Church of England Primary School in Rugby, Warwickshire.
Katie, together with six green-fingered pals, had created their own garden consisting of chives, oregano and lettuce specially for the show with a little help from designer Simon Venn.
Former Brummie Peter Jones had come to the show with his two daughters and wife.
Mr Jones, now living in Northampton, said: "Camilla was a vision in pink.
"I call her 'Camellia' because it is a garden show. It has been a real bonus seeing them and I admire them because they have stuck it out, they are married now and I wish them luck."
Mr Jones said he had only bought a pint at the show but his horticultural mad family had certainly made up for it in a couple of hours.
His wife Karin proudly held up a dark-green coloured plant which closely resembled some discarded Christmas wires.
Mrs Jones said: "It's called Juncus Effusus Spirallis. I bought it because it's weird and I am going to put it in my garden next to the grass section."
Gardening gurus Alan Titchmarsh and Monty Don, together with celebrity chefs Sophie Grigson, Nick Nairn and Raymond Blanc, will be putting on displays and shows until the event wraps up on Sunday.
Former star of BBC Gardeners' World and crowdpleaser Alan Titchmarsh kicked off the first of a series of live question times at midday.
Teresa McKay from Marlborough, Wiltshire, was the first to pop a question at the gardening expert.
Mrs McKay said: "I spend a lot of time in my garden and Pebbles, my Spaniel dog, tends to run into the bushes and is destroying the wildlife.
"I asked Alan if there was a plant which I could plant to stop her.
"Alan mentioned that apart from sending her to Battersea dogs home, there is a plant which can stop Pebbles from going into some parts of my garden because it has thorns."
Mrs McKay had originally travelled up for the day but was so impressed by the show, she decided to stay over.
She said: "Asking Alan Titchmarsh a question has been the best part of my day and I don't want to miss anything."
At the Royal Horticultural Society help desk, Guy Barter said his team of experts expect to deal with more than 3,000 enquiries during the five-day show.
"As always we have questions about weeds, as plants have been slow to grow weeds, which are regarded as the toughies of the plant world, rush in."