The brassica is a cross between Brussels sprout and kale but tastes milder and sweeter than a Brussels sprout.
The variety has been in the making since 1995 — when the vegetable-breeding company started making tentative crosses of sprout and kale varieties.
Development continued with the use of different coloured sprout and kale parent lines.
Just one variety has been released so far, but other varieties in a range of colour forms and maturities will be available shortly.
Tozer representative Dr Jamie Claxton said: "Most breeding is done to improve existing varieties but Tozer's independence means we have more flexibility in our breeding programmes.
"Breeding a new variety can take over 10 years so it's a real sense of achievement when your product hits the market, I'm really excited about seeing flower sprout on the shelves."
For more information see next week's Grower.
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