Harvest Flexibility in alfalfa hay production is a key benefit with alfalfa varieties with the HarvXtra and Roundup Ready Trait Technology, allowing up to 10 days harvest delay and still achieve a quality similar to conventional varieties of the same fall dormancy, managed and harvested alike, but harvested 10 days earlier. HarvXtra seed varieties of alfalfa have decreased in price, making them even more attractive to plant this late summer or fall.