13/02/2015 13:26 GMT | Updated 20/05/2015 10:12 BST

Gwyneth Paltrow, Demi Moore And Nicole Richie Team Up For Harper's Bazaar

Gwyneth Paltrow, Demi Moore, and Nicole Richie have teamed up with florist-to-the-rich-and-famous, Eric Buterbaugh, in a photo shoot for Harper's Bazaar's March issue.

The ladies look incredible in Dolce & Gabbana red and black floral prints, which match the incredible arrangement and blooming arch Eric created for the occasion.

Think magnolia branches, nearly 2,500 Geraldine roses, and more than 30,000 carnations.

Alexi Lubomirski for Harper's BAZAAR.

The floral designer to the stars is venturing into the world of fragrance and he's got his longtime friends and clients to join him while promoting it. And, in the ensuing interview, he lets us in on everything from Salma Hayek's wedding details, to award season craziness that sees "blood on the shop floor".

All the ladies are also seen posing with floral headpieces and, if Eric's nicknamed King of Roses, Gwyneth was definitely his queen, wearing an intricate 'crown' of the flowers in one pic.

Alexi Lubomirski for Harper's BAZAAR.

Operating for the past 16 years out of a suite in the Four Seasons Hotel in Beverly Hills, Eric's become the go-to floral designer in LA, and for some of the top heavyweights in entertainment and fashion.

When Tory Burch and Michael Kors came to town to open West Coast outposts, Buterbaugh was enlisted to help set the mood. The white calla lilies at Madonna and Guy Oseary's Oscars after-party last year? Buterbaugh's work.

MORE! Gwyneth Paltrow's latest beauty secret: She steams her vagina

His client list also includes virtually every major luxury brand, from Dior and Valentino to Ferragamo and Cartier, and he's done parties for the British royal family (including one at Windsor Castle). Ah, the things he must have seen.

One of Buterbaugh's most memorable gigs was Salma Hayek's 2009 wedding to Kering CEO François-Henri Pinault at the Venice opera house, for which Buterbaugh commissioned a series of tall, cylindrical vases that surrounded the couple on the altar. "It was a three-day affair with the most amazing group of people - Bono even sang," Buterbaugh remembers. "The vases were so delicate that they had to be brought to the opera house along with the flowers on these tiny little motorboats that could navigate the canals without the glass breaking."

Awards season remains his busiest period. "Besides the parties, it's all the flowers you have to send people, send to the stars, the thank-you for wearing the dress, the thank-you to the stylist for getting the person to wear the dress," he says. "Oscars week, there's blood on the shop floor."

Alexi Lubomirski for Harper’s BAZAAR.

Gwyneth Paltrow remembers her first Buterbaugh experience, when she was sent one of his bouquets by a friend. "It was white roses, but roses on roses on roses-basically a plate of roses balanced on this tiny vase that defied the laws of balance and physics," she says. "I just thought: 'This is so above anything I've ever seen. It's art.' Eric is very economical in terms of the beauty he creates with his flowers," she continues. "It can be over-the-top, but just the perfect amount. And he's like that as a person too."

Demi Moore met Buterbaugh at a mutual friend's birthday party in 2002. The pair were introduced and chatted, then bumped into each other again at the valet. "In those days I used to carry around with me a small, hard cooler full of Red Bull and I smoked Marlboro Reds," she recalls. "So as I was waiting by myself for my car to come, sitting on my little cooler, Eric looked over at me and said, 'I like you, because you're just not right,' " Moore laughs. "And we've been best friends ever since."

"He has a true appreciation of beauty-and I don't mean that in a superficial way," says Nicole Richie, who compares Buterbaugh's company to that of a rose, which has become his signature flower. She explains that, like his extraordinary arrangements, he gives off an energy that makes her feel better when she's happy but also when she's not. "Every time he walks into a room with his boots, I know that we are going to have more fun than Nancy Sinatra."

It's a sentiment echoed by Moore. "We've shared a lot, but I don't think there's ever been a time when I haven't wanted to have Eric with me," she says. "Whether we're in palaces in Asia or pyjamas in Idaho watching Downton Abbey, he's the same guy."

Wait, what? Demi Moore watches Downton Abbey? Cool.

The March issue also features an amazing shoot that sees cover star Rihanna swimming with sharks.

Rihanna Harper's Bazaar