Cygnet PB is Britain's biggest potato breeder and one of the largest seed potato growers in the country.
Cygnet PB is part of Alexander Harley Seeds Ltd, a privately owned group of potato and cereal companies that cover all aspects of production from breeding, micropropagation & minituber production to high grade seed production and sales.
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November 03, 2026
Potato Variety Days 2026 eBook: Discover the Latest Potato Breeding Innovations
The Potato Variety Days 2026 e-book is now available for free ahead of the 4–6 November event in the Netherlands. It features participating companies, event details, new varieties and insights into potato breeding.
November 13, 2023
World Potato Congress Inc. Welcomes New International Advisors
The World Potato Congress Inc. (WPC) is pleased to welcome Douglas Harley and Derek Roulston as International Advisors.
March 29, 2023
The Kingsman potato: Cygnet PB to expand commercial trials in the US for this high-yielding, climate-resilient variety
Launched in 2017, the potato variety Kingsman has developed quickly in popularity to become Scotland-based potato breeder Cygnet PB Ltd.’s first globally successful variety.
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This content was last updated on August 14, 2026
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