Climate Necessary
Cacao can only grow at tropical temperatures, and when shielded from the wind and unimpaired by drought. Enthusiasts, as a hobby, have grown the tree under glass in England; it requires a warmer temperature than either tea or coffee, and only after infinite care can one succeed in getting the tree to flower and bear fruit. The mean temperature in the countries in which it thrives is about 80 degrees F. in the shade, and the average of the maximum temperatures is seldom more than 90 degrees F., or the average of the minimum temperatures less than 70 degrees F. The rainfall can be as low as 45 inches per annum, as in the Gold Coast, or as high as 150 inches, as in Java, provided the fall is uniformly distributed. The ideal spot is the secluded vale, and whilst in Venezuela there are plantations up to 2000 feet above sea level, cacao cannot generally be profitably cultivated above 1000 feet.