As Caltha palustris, but with beautiful double yellow flowers in early spring. It was first discovered & cultivated in Austria in the late 16th century. Flowers March-April. Height 20-30cm. Maximum depth 10cm. Supplied in a 1 litre pot. Welcome to our new range of aquatics, which we've created in conjunction with specialists Anglo Aquarium to help create the most beautiful water features. (Please note: There is a 5.00 surcharge when ordering this item.)