Plant in full to part sun and irrigated occasionally to infrequently. Ultimate frost hardiness unknown but it weathered the January 2007 freeze with 3 nights down to 25° F and this plant comes from a location that can experience temperatures a couple degrees below this. Puya sp. 'Machu Picchu Gray' was grown from seed collected along the trail up to Machu Picchu, the fortress city of the ancient Incas in Peru at nearly 8,000 feet in elevation. We received seed from two species and the other larger plant with green foliage we list as < href="plantdisplay.asp?plant_id=2809" target="_blank">Puya sp. 'Machu Picchu Green'. We sold this plant from 2003 until 2004. 

The information displayed on this page about Puya sp. 'Machu Picchu Gray' is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.