The young Emmy nominee actress was photographed by Hedi Slimane in Paris this September.
The Italian fashion group is expanding globally and a strong performance in mainland China helped lift profits and sales in the period.
The actress said Happy x Nature is inspired by her love of bohemian trends and eco-friendly fashions.
Ferretti has partnered with Firth’s brand consultancy Eco-Age on a new sustainable capsule.
The show will take place at the Musée Océanographique de Monaco on May 18.
China, tourist spending and online sales helped boost the performance of the Italian fashion group last year.
The Asia market, driven by a jump in Greater China, helped boost the performance of the Italian fashion group.
Chiara Ferragni is one of the influencers investigated for surreptitious advertising of designs by Ferretti with the Alitalia logo.
Strong business in the Far East, driven by China, drove the growth.
The honorary president of the Salvatore Ferragamo group and the wife of the late namesake founder of the company died on Friday at 96.
The designer and the digital entrepreneur were awarded for their established businesses in the U.S.