Avocado-lovers in the UK can look forward to the arrival of an enormous variety five times bigger than the norm when it hits supermarket shelves this weekend.

The rare "Avozilla" - thought to be the world's largest avocado - comes from just four trees grown by one of the world's biggest suppliers of avocados in South Africa.

But British fans of the fruit will be able to enjoy it as it goes on sale at supermarket giant Tesco from tomorrow.

The fruit is double the length and five times the weight of the standard variety - on average it is seven-and-a-half inches long and weighs nearly 3lb.

Tesco salad buyer Emma Bonny said: "The Avozilla has a fantastic taste with a rich, juicy, buttery texture, and creamy flavour.

"The ripe fruit is an attractive vivid green colour - different from the darker-coloured smaller variety - and its thick skin can actually be used as a serving bowl for guacamole.

"Avocados are full of nutrients and vitamins, and by stocking these big varieties, we're making it easier than ever before for our customers to eat healthily.

"We believe the Avozilla will appeal to shoppers who are looking for value for money, but especially large families."

Avocados have grown from a niche food to an everyday shopping basket favourite, she said, adding: "Avocados are one of our fastest-growing areas in produce, with a staggering 30% growth so far this year."

The Avozilla will go on sale tomorrow exclusively at Tesco, priced at £3 each.