Located in the grounds of Coloma castle, not far from Brussels, this is one of the largest rose gardens in Europe.
More than 66,000 roses have been planted here, including ancient species and rare varieties from all over the world.
The Coloma rose garden is divided into countries, so you can study typical British roses or wander among tough species that survive in Canada.
This is an enchanting spot in the summer months, with secret corners, hidden benches and odd windows cut in box hedges to provide unexpected views.
Derek Blyth’s hidden secret of the day: Derek Blyth is the author of the bestselling “The 500 Hidden Secrets of Belgium”. He picks out one of his favourite hidden secrets for The Brussels Times every day.