<Tr> <Td> Italy </Td> <Td> 0.4 </Td> </Tr> <Tr> <Td> World </Td> <Td> 24.2 </Td> </Tr> <P> In 2014, global production of broccoli (combined for production reports with cauliflowers) was 24.2 million tonnes, with China and India together accounting for 74% of the total (table). Secondary producers, each having one million tonnes or less annually, were the United States, Spain, Mexico and Italy (table). The US Department of Agriculture reported that national production just of broccoli in 2014 was 0.95 million tonnes, nearly all of which was grown in California . </P> <P> Broccoli is a cool - weather crop that does poorly in hot summer weather . Broccoli grows best when exposed to an average daily temperature between 18 and 23 ° C (64 and 73 ° F). When the cluster of flowers, also referred to as a "head" of broccoli, appear in the center of the plant, the cluster is green . Garden pruners or shears are used to cut the head about an inch from the tip . Broccoli should be harvested before the flowers on the head bloom bright yellow . </P>

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