This was bred by Robert Fenn of Sulhamstead, Berkshire. This is the classic old maincrop variety sold early season by Jersey growers under the trade mark “Jersey Royal”. If picked prematurely, it is a small, firm, waxy potato. When left to mature naturally, it is a large kidney and is floury enough to disintegrate slightly when boiled. Seed catalogues receive complaints about “phoney Jersey Royals” every summer.