Look Back: 190 years of the Philadelphia Flower Show

Princess Grace judges an exhibit at the Philadelphia Flower show in 1976.

A poster for the 1956 Philadelphia Flower Show.

The Philadelphia Flower Show exhibition hall in 1867.

Flowers for Eleanor Roosevelt in 1933 at the Philadelphia Flower Show.

The central exhibit was a water feature at the 1935 Philadelphia Flower Show.

Joy MacKinney, a 1970 Philadelphia Flower Show sweepstakes winner, kisses her statue.

A poster from the 1957 Philadelphia Flower Show

Flower show presenters hang up a poster promoting the 1947 Philadelphia Flower Show.

Carnations are gathered for Mamie Eisenhower at the 1953 Philadelphia Flower Show.

A poster for the 1967 Philadelphia Flower Show.

The fountain at the 1935 Philadelphia Flower Show.

The spade and trowel set up of the 1954 Philadelphia Flower Show.

A poster from the 1970 Philadelphia Flower Show.

The 1929 'Burpee Girl,' representing the seed catalog at the Philadelphia Flower Show.

A poster from the 1975 Philadelphia Flower Show.

Philadelphia Horticultural Society President Liddon Pennock stands at an exhibit being installed at the Philadelphia Flower Show in 1977.

A poster for the 1996 Philadelphia Flower Show.

Philadelphia Flower Show guests arrive at the Civic Center in 1978.

A poster for the 1980 Philadelphia Flower and Garden Show.

Marban Sparkman, left, president of the Garden Club of Philadelphia, accompanied by Princess Caroline of Monaco at the 1990 Philadelphia Flower Show awards luncheon.

First Lady Barbara Bush at Primrose Junction exhibit at the Philadelphia Flower Show in 1992.

The Cactus Man works on his exhibit at the 1992 Philadelphia Flower Show.

The Jaime Rothstein Hall of Mirrors at the 1998 Philadelphia Flower Show.

A hot air balloon rises above the 2010 Philadelphia Flower Show.

The poster for the 1999 Philadelphia Flower Show.

A 2013 ribbon cutting at the Philadelphia Flower Show.