Seabrook tells HW editor Matthew Appleby about his work at Hyde Hall, created at the expense, he admits, of his own garden.
He speaks with characteristic passion and in detail about the plants in the display and offers his top recommendations of what will be good sellers next season.
Seabook also speaks movingly about the reaction of the public to the display when the garden reopened as coronavirus lockdown restrictions were eased.
Reserving some stern words for garden designers and local authorities, he adds:
"Our modern garden designers have a lot to answer for. They're afraid of colour, and also perhaps aware that seasonal bedding is work.
"I'm not sure our local authorities are wise in abandoning colour. It costs more than sticking a few rough grasses that look like a roadside wasteland but if you want to give people a lift, then what's available now with seasonal colour is just fantastic!"
Listen to the podcast below: