Your advice, please, on soliciting tomatoes

Last year we had a SillSurfer called Tom for several months. He loved to sit in the sunshine and grew very big and we loved him very much, but he wasn’t very good with the rent (he gave us about five rather piddly tomatoes).

This year we have a new SillSurfer – Tim. He’s very young and quite shy; does anyone have any advice on how to gently encourage him to pay his way a little better than Tom did? (Payment in tomatoes is fine.)