Agave parrasana

Natural range and habitat of Agave parrasana

Agave parrasana is native to the Parras mountain region of Coahuila in north-eastern Mexico. It grows at roughly 1,400–2,480 m on limestone mountains in grassland, chaparral and pine-oak landscapes.

The species is Vulnerable in the wild. Its habitat combines strong light, rocky limestone ground and a cool upland climate with distinct dry periods.

How to grow Agave parrasana in a pot

• Temperature: Keep temperatures around 10–30 °C. Move it to a warmer position if temperatures stay below 1 °C. This upland species handles cool conditions well. Protect potted plants from prolonged freezing and keep the mix drier during cold spells.
• Pot and repotting: A broad, stable pot keeps the low rosette secure. Repot when roots or offsets fill the container.
• Light: Give it very bright light and direct sun. Increase sun exposure gradually if the plant has been growing in softer light. Bright light helps the rosette stay compact.
• Water: Water thoroughly, then allow the mix to dry completely before watering again.
• Potting mix: Choose a gritty, fast-draining succulent mix with a generous amount of pumice, lava or grit.
• Airflow: Aim for 40–50% humidity. Ordinary room humidity works well. Leave some space around the leaf bases so they dry after watering.
• Feeding: Because growth is slow, a light low-nitrogen feed while new leaves are appearing is enough.
• Propagation: Grow it from seed or separate a rooted offset from an established plant.

Health issues in Agave parrasana

• Greasy streaks or distorted centre leaves: Agave mites can feed inside the tightly packed centre. Isolate the plant, inspect the newest leaves and use a product labelled for mite control on ornamental plants, following the stated repeat timing.
• Tissue beneath the outer leaves becomes soft: Moisture may be lingering around the dense base and starting rot. Cut affected tissue back to firm, healthy tissue with a clean tool, discard the rotten material, let the cut area dry and repot in fresh, fast-draining mix.
• Brown scale-like bumps or sticky residue appear on the blue-grey leaves: Scale insects may be feeding on the plant. Isolate it, remove visible scale and apply a labelled treatment. Repeat treatment at the interval stated on the label.
• New leaves become longer and greener: The compact rosette needs stronger light. Move it to a brighter position so later leaves stay shorter and denser.

Agave parrasana is toxic to people and pets

• Keep this plant away from children, cats and dogs, and handle the sharp leaves carefully.
• Its sap and tissues contain irritating saponins and oxalates. Rigid leaf tips and toothed margins can also scratch or puncture skin, eyes, mouths or paws.
• Exposure may cause mouth pain, drooling, vomiting, skin irritation or puncture wounds. Contact a veterinarian or medical professional if symptoms or an injury develop.

When was Agave parrasana first published, and what does it mean?

Agave comes from the Greek agauos, meaning noble, illustrious or admirable. The epithet parrasana refers to the Sierra de Parras in Coahuila, Mexico.

Carl Linnaeus established the genus Agave in 1753 in Species Plantarum, page 323.

Alwin Berger first described Agave parrasana in 1906 in Notizblatt des Königlichen Botanischen Gartens zu Berlin, volume 4, page 250.