15. Harvey's Garden Plants

"The Orchard Room at the heart of the nursery is a winner of foodie awards, making the nursery worth a visit just for lunch," says Dorothy. "Combine good food with a Chelsea award-winning collection of rare shade and woodland plants and a trip to Suffolk is a necessity. Look out for its talks and practical sessions, they are well worth attending."

Where: Great Green, Thurston, Bury St Edmunds, Suffolk, IP31 3SJ (01359 233363; harveysgardenplants.co.uk)