In the area of Coatepec, Veracruz you can find a lot of coffee plantations. The altitude is very good for coffee. Anyway the sun can be too hot for the coffee bushes, therefore trees are planted there as well. Many coffee farmers plant banana trees among the coffee bushes. It gives them two sources to earn money. In years like the last one and this one it can be very important.
Read about the reason, why it was so important for the last two years by following the link to Veracruz and scrolling down to 23rd August 2018.