This is the beautiful Pavot reference by Designers Guild, it is available in the Birch colorway.
Its official description is: "An elegant floral fabric featuring an exuberant expression of gorgeous country flowers, with intertwining papery poppies and delicate cornflowers. Digitally printed against a softly textured background on cool, smooth 100% cotton satin, a beautiful fabric for curtains."
Measures: 120cmL x 139cmW
The Pavot reference belongs to the "Couture Rose" collection: "Unashamedly floral and exquisitely drawn and coloured, our prints this spring flow directly from nature and from classical botanical paintings, interpreted in the signature Designers Guild way. Beautiful renditions of roses, lilies, orchids, irises or poppies grow in abundance and are printed on a variety of cottons and linens with a freshness and clarity of colour. Ideal fabrics for curtains, blinds, cushions, bedcovers and some for upholstery too."
Designers Guild Pavot Floral Fabric