The march of the F1 hybrids seems to be gathering pace this year, leading to higher prices for less seeds. One of the F1 hybrids I do grow is the parsnip Gladiator, which is giving me a very good crop this year. But I had an interesting conversation today with a tenant who had grown Hollow Crown to a similar size as mine. I am also an advocate of F1 Brussel Sprouts having seen the far superior performance of them at the trial fields at RHS Wisley. But otherwise I would rather grow open-pollinated varieties which I can buy much larger quantities more cheaply and collect seed which comes true to type. When I acted as an administrator for a seed scheme admittedly some years ago, I was somewhat surprised by the members' commitment to the well-known varieties.