There have been increasing signs that the retail trade has become colour conscious. Not the usual spectrum associated with produce displays, but the hunt for something different.

Recently, we’ve seen the arrival of Albert Bartlett’s purple potatoes, which are now on sale in Sainsbury’s in a similarly hued pack that stands out from the crowd.

Not be to outdone, Asda will be stocking red Brussels spouts in the run up to Christmas aimed at children. It has already started the ball rolling with pink curry onions grown in Lincolnshire, which are selling at £1.76 for 1.5 kg.

Perhaps this will give increased impetus to the demand for yellow and black carrots, which appear from time to time.

Meanwhile, Sainsbury’s has come up with a Scottish-grown pack of carrots labelled Sweet Spear for £1 for 450g. I’m not sure whether it is the variety or clever marketing.

It may not be a case of reinventing the wheel, but young turnips - also with a purple hue - have been around for some time. Now they have been given a makeover at Tesco in its new range at £1.50 for 200g, which also includes miniature leeks. Both are linked to a two for £2.50 offer.

With the arrival of the season of mellow fruitfulness, Halloween has appeared over the horizon with bins full of pumpkins, which appear to have attracted the attention of the Health & Safety squad. Many carry a consumer warning on the label that they are heavy!

And of course, several varieties of English apple, which briefly see the light of day due to their scarcity, continue to arrive.

Marks & Spencer has come up with the Norfolk Royal Russet in its Limited Edition range, grown by Lord Selbourne at £1.99 for four.

Another lesser known variety in Asda’s organic range is Santana, at £1.57 for four.