Jouan Rius / Large courgette / marrow (Cucurbita pepo) growing in vegetable garden, France, August 2013.

Jouan Rius / Large courgette / marrow (Cucurbita pepo) growing in vegetable garden, France, August 2013.

Cyril Ruoso / Pumpkin (Cucurbita pepo) growing in organic garden tended to by inmates as part of Sustainability in Prison program, Cedar Creek Corrections Center, Washington, USA. September 2012.

Gary K. Smith / Wooden trug with freshly harvested home grown green and yellow courgette (Cucurbita pepo) varieties, Norfolk, England UK. July

Pal Hermansen / Variet of Pumpkins and squashes (Cucurbita pepo) Norway, August.

Pal Hermansen / Halloween decorations including pumpkins (Cucurbita pepo) outside house, outskirts of Minneapolis, USA.

Pal Hermansen / Seed of Pumpkin (Cucurbita pepo) on white background

Paul Harcourt Davies / Courgette flower (Cucurbita pepo) Podere Montecucco, Orvieto, Umbria, Italy, August.

Jean E. Roche / Polytunnel with courgettes growing, Cidamos gardens, Alpilles, France, October 2012.

Nigel Cattlin / Pumpkin (Cucurbita pepo) seeds taken from a fresh ripe pumpkin fruit.