‘There were three things that marked out Lucy Willow as different. The first was that she lived on a train. The second was that she had a snail called Ernest as a pet. And the third, the most important of all, was that she had green fingers.’

It’s Lucy’s green fingers that save the day when Silverboots McCoy the famous footballer and his girlfriend Blossom B order flowers for their wedding – for Ricky Sparks, who runs the rival garden centre, will stop at nothing to get the contract for himself.