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Harvesting Agave for Tequila. I n the past, agave were harvested when the jimadors decided they were ripe enough. This was generally done when the agaves were from eight to ten years old. Jimadors knew, from generations of experience, when the agave was ripest, when it was rich with sugars and ready for harvesting.
Early Corn. Most varieties of early season corn take 67 to 72 days to harvest, with the typical maturity time listed on the seed packet. One variety, called Earlivee, can be ready to pick as soon as 58 days after planting. Most types of main-season corn can be harvested 78 to 83 days after planting, according to the University of Illinois Extension.