There’s no doubt that the fresh produce category is becoming more and more complicated when it comes to defining what it actually comprises.

While loose and pre-packed obviously contribute the majority of what is on display, prepared, cut and snacking products continue to make inroads. There are several lines that could even qualify for the delicatessen counter.

Two such arrivals are Tesco’s new stir fry with added lotus root at £1.28 for 105g, which, along with Tenderstem broccoli, makes up 84 per cent of the mix. Chilli and ginger complete the pack.

Bean shoots have been part of this culinary explosion for some time, and Waitrose now stocks organic China Rose radish sprouts at £1.29 for 115g. They are part of the range grown by Aconbury Sprouts, which has been going since 1985.

Staying with vegetables, it is always surprising to see where suppliers have been able to find a small window of opportunity in the hope of building a regular niche market.

One of the most unusual must be the arrival of mangetout at Tesco earlier this month - a 180g pack which was priced at £1.50 and originated in India.

It makes the point of course that no source, however traditional, is inviolate. A good example which remains on the shelf year round rather than just at Christmas are dates. The accepted source has traditionally always been Tunisia, and the only variety the Deglet Noor.

Today most of the Middle East and the US have industries only too willing to meet supermarket buyers, with Israel in particular leading the way with a wide range that includes Deri dates exclusive to Marks & Spencer. The elegant 250g pack contains stoneless fruit costing £2.69.

Reverting to my original thoughts, I wonder how long it takes for a new arrival to be readily recognised by consumers? It’s not so long ago when shoppers were not quite sure about avocados and kiwifruit.

Another which may still be in this twilight area are persimmon or sharon fruit, originally mistaken for some type of tomato.

Asda, however, is giving them a boost with what must be one of the first mini packs in its Great Stuff range. Grown in Israel, the five fruit are priced at £1.33.