This is the wonderful Catharina reference by Designers Guild. It belongs to the Tulipa Stellata collection and is available here in the "cornflower" colorway.
Composition: 60% Linen 30% Cotton 10% Pa
Measures: 135cmW x 60cmL
Its official description is: "Beautifully drawn florals in fresh blue hues, digitally printed on a linen cotton mix for a soft and tumbled finish. This glorious colourway is perfect for elegant curtains, blinds and cushions and is durable enough for upholstery."
I ship worldwide, please get in touch for a quote!