Agave montana is drought tolerant but should be watered regularly when soil is dry - provide supplemental watering during the growth period in spring and summer.
However, the substrate must be well-draining - it is recommended to mix gravel with cactus or succulent soil to supplement drainage. Although not required, the best growth will occur when grown in a habit of rich organic soil, with the base covered in pine needles. At the same time, plants should be provided with full sun to encourage growth, but partial shade is necessary on hot summer days.
A. montana is more cold tolerant than other species of agave, surviving down to 10°F, USDA hardiness zones 8a to 10b. However, despite possessing cold hardiness, protect Agave montana from extended periods of sub-zero temperatures.
Unlike other species, Agave montana does not produce any offsets or buds, and will completely disappear after flowering. As such, mountain agave is only propagated through seed, but can be grown easily. Germinate in vitro in gelatin, agar, or other growth mediums, and cover sparsely with soil, as light is required for germination.
