Gardeners’ World

After years in the doldrums, the dahlia has become popular again

After years in the doldrums, the dahlia has become popular again.

Not before time, reckons Monty Don, who praises its variety, long flowering season and adaptability.

It even makes a great cut flower.

At Longmeadow, Monty shows us how to get dahlias and other tender perennials under way for the summer, while Adam Frost heads to Dorset to meet a tropical-plant enthusiast with a garden full of exotic and unusual specimens.

Please note this programme airs at 9.30pm in Wales.