Yorkshire Irises - York

Potter W & Sons - Thirsk

Asselby Nurseries - Goole

Watsons Of Brandsby Ltd - York

Primrose Bank Nursery - York

Scampston Hall & Walled Garden - Malton

Wholecrop Marketing Ltd - Driffield

Crop-England Ltd - Grantham

W J Robinson - York

H Hodgson Farmer - Malton