Of the mind-boggling 1,800 species grown at Wakehurst Place in West Sussex, the bluebells are some of the finest - National Trust Images/Jim Holden ...

The National Trust has accrued roughly three-quarters of the rim ... Sissinghurst is surely a contender for the best kept castle garden in the country - Image Professionals GmbH/Alamy ...

Best garden in Northern Ireland ... It’s not all quirky elements in this National Trust garden, however. There are lakeside walks, ornamental trees and pretty pergolas to enjoy.