Chelsea flower show centenary - in pictures

RHS staff at the 1913 flower show Photograph: RHS, Lindley Library

Queen Mary with a group in 1913 Photograph: RHS, Lindley Library

Preparing a model garden at the 1931 flower show Photograph: RHS, Lindley Library

A plan of the 1921 flower show, showing the marquee layouts Photograph: W E Bisset/RHS, Lindley Library

Gardeners carrying pots at the flower show in 1931 Photograph: RHS, Lindley Library

Three Chelsea pensioners watching proceedings in 1935 Photograph: RHS, Lindley Library

Charles McLaren, the third Baron Aberconway, and Queen Elizabeth II at the Chelsea flower show. McLaren gardened at Bodnant, near Colwyn Bay in Wales, and served as president of the RHS for 23 years Photograph: Valerie Finnis/RHS, Lindley Library

Beatrix Havergal and Waterperry students at the Chelsea strawberry stand Photograph: Valerie Finnis/RHS, Lindley Library

A garden at the 1964 flower show Photograph: RHS, Lindley Library

Visitors looking at a display of cacti in 1964 Photograph: RHS, Lindley Library

Roses at the 1965 flower show Photograph: RHS, Lindley Library

The Chelsea flower show in 1976 Photograph: RHS, Lindley Library

Visitors to the Chelsea flower show in the 1990s Photograph: RHS, Lindley Library