It's always five o'clock somewhere, goes the sot's adage. This sound principle may also be applied to the seasonality of fruit and vegetables. These days, the year-round availability of everything from Peruvian asparagus to Dutch tomatoes is pretty much ubiquitous in UK supermarkets. Such disregard for British growing seasons has become something of a cause celebre for foodie types, and a new survey by BBC Good Food Magazin He has found our knowledge of the seasons to be pitiful. Of the 2,000 people polled, only 5% could say when blackberries were plump and juicy.

And 4% guessed accurately at when plums were at their best. One in 10 could pinpoint the season for gooseberries. All of this is despite 86% professing to believe in the importance of seasonality, and 78% claiming to shop seasonally. In the great scheme of our foodish shortcomings - the obesity, the steady rise of ready meals,…