Take it from the Parisians: Don’t overdo it. “There’s an art to arranging,” says Shelly Huynh of Orchid Dynasty, who just returned from Paris, “but I’m not doing anything over-manipulative.” Huynh’s approach is simple, yet yields bouquet wow factor. She heads to her 9th & 9th neighborhood greenhouse to find the stars of her bouquet—lime green phalaenopsis orchids. “When...