I have hunted high and low and cannot find an answer. How do you make/persuade/help a Yucca tree to make offshoots/sprouts/pups? Everyone knows what to do once you have them, but how do you make your Yucca sprout offshoots?
First, some varieties of yucca are more likely to send out offshoots than others, so first you have to have the correct kind of yucca. Second, if the yucca is in a pot, as it becomes potbound, it is more likely to send up pups. Third, some yuccas seem to send up shoots following flowering, so if you can encourage that, you might get some pups. https://www.gardeningknowhow.com/ornamental/foliage/yucca/yucca-plant-doesnt-bloom.htm
Finally, pruning off the top of the plant, where the growing tip is located, may encourage the growth of offshoots. https://www.gardeningknowhow.com/ornamental/foliage/yucca/yucca-plants-care-and-pruning-tips-for-pruning-a-yucca.htm
None of these methods is for sure, but they may increase the chances your yucca will produce pups.