The fourth of ten programmes
The plants we grow in our gardens are some of the richest and most varied in the world. But very few of them are native to this country. So where do they come from? Who brought them? How have we changed them? Dahlias
Geoffrey Smith follows the dahlia trail from the wild plants of Mexico to the cultivars of the showbench.
Film editor PETER ringsted Director ERICA Griffiths Producer BRIAN DAVIES
Book (same title), 13.95 from booksellers