Dioon edule, variety "Queretaro Blue", grows in the Mexican state of Queretaro, at elevations exceeding one mile, resulting in cold hardiness well below 20 degrees Fahrenheit. Its leaves are a glaucous/blue color, with a slight twist, curving slightly inward. The leaflets of Dioon edule, "Queretaro Blue" are spineless, smooth and pointed, with slightly revolute margins (edges turned under). Full sun exposure will cause a more blue leaf color. The Queretaro Dioon grows well in both container and garden. Good drainage is important for this plant.
This Dioon edule complex is a group of of flat-leafed, sun-loving plants popular for their tolerance of heat and cold and attractive, stiff, blue- to gray-green colored leaves. They grow best in part to full sun.
