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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.
Desiree potatoes are early maincrop potatoes and they are ready for harvest, if conditions are correct, 17 to 18 weeks after the seed potatoes are planted. The key factor governing the time for planting all potatoes is the date of the last frost in your area.