Havard's Agave

## Landscape value Havard’s agave (Agave havardiana) is a rosette-forming succulent native to rocky sites in western Texas and northern Mexico. Its thick, spine-edged leaves create a bold architectural accent. [Missouri Botanical Garden](https://plantfinder.mobot.org/PlantFinderDetails.aspx?bt=8&taxonid=275724) describes a mature rosette around 2–3 feet tall; allow clear space around the spines and avoid paths where people or pets may brush against them. ## Growing conditions Provide sharply drained, gritty soil and water sparingly once established. The [Southern Nevada Water Authority](https://www.snwa.com/landscapes/plants/?id=14676) recommends afternoon or filtered shade in its hot climate, while Missouri Botanical Garden recommends full sun. Adjust exposure for local heat. Idaho’s Firewise table lists low water needs and a minimum zone of 5, whereas Missouri Botanical Garden describes reliable hardiness in zones 7–10; winter wet and local conditions matter. Confirm cold tolerance locally and provide winter drainage before using it in colder gardens. ## Firewise context The [Idaho BLM Fire Resistance of Plants database](https://www.blm.gov/sites/default/files/documents/files/Fire%20Resistance%20of%20Plants%20Master%20Database.pdf) lists Agave havardiana at score 7. Follow the guide’s recommended placement and ongoing maintenance; no plant is fireproof.