Topshop has joined forces with textile designer Celia Birtwell to introduce a line featuring her signature prints. Birtwell, who used to be married to the late Ossie Clarke and was muse to David Hockney, made her name in the Seventies designing floral prints for Clark's dresses. "The design team and I had been discussing how fantastic we thought Celia was," Topshop brand director, Jane Shepherdson, told WWD. "When her agent approached us about collaborating on a line, we leapt on it immediately."

Now the two have designed an 11-piece collection, based on Birtwell's archives. The line includes floaty blouses and dresses in silk, georgette and voile, all featuring hand-drawn floral prints, with names like Mystic Daisy, Monkey Puzzle and Golden Slumbers. The collection launches at the Oxford Circus flaghip in London today and according to Shepherdson, there is already a waiting list.

"The response, so far, has been phenomenal, we've booked really big quantities of the pieces," she said. Prices range from about $50 (£28) for a cotton top to $178 for a silk dress. From mid-June the capsule collection will also be sold at Topshop's shop-in-shop at the New York boutique opening ceremony. Birtwell will continue to work on the collection for "two or three seasons", said Shepherdson.