Agave angustifolia ‘Marginata’

Cultivated origin of Agave angustifolia ‘Marginata’

Agave angustifolia ‘Marginata’ is a variegated horticultural selection of Agave angustifolia. Older plant labels may show the name Agave angustifolia var. marginata for the same pale-edged form.

Agave angustifolia has a wide native range from Mexico through Central America. It occurs in seasonally dry scrub, tropical dry forest and upland landscapes.

Everyday care for Agave angustifolia ‘Marginata’

• Clump and airflow: Aim for 40–50% humidity. Basal pups can turn one rosette into a wider group. Normal indoor humidity is fine, with enough space between rosettes for the leaf bases to dry after watering.
• Repotting: Repot when roots or pups fill the container. A stable pot helps balance the tall foliage as the clump widens.
• Light: Give it very bright light with direct sun. If the plant has been growing in softer light, introduce stronger sun gradually; good light helps the narrow leaves stay upright and keeps the pale margins visible.
• Water: Let the potting mix dry through, then water thoroughly. Leave it dry for longer when conditions are cooler or dimmer.
• Potting mix: Choose a gritty, fast-draining succulent mix with plenty of pumice, lava or grit.
• Temperature: Keep temperatures around 10–30 °C. Keep it clear of extended periods under 1 °C. It grows well in warm, bright conditions. Protect the container from frost and prolonged cold, wet conditions.
• Feeding: A light low-nitrogen feed is enough while new leaves are growing.
• Propagation: Separate a rooted variegated pup and grow it in a free-draining mix to continue the pale-edged form.

Troubleshooting Agave angustifolia ‘Marginata’

• Spreading brown or pale-brown sunken spots near the leaf edge: A fungal leaf disease may be developing. Isolate the plant, remove badly affected leaves with a clean tool, keep the foliage dry and use a fungicide only when its label covers the plant and problem. Repeat treatment at the interval stated on the label.
• Leaf bases soften or the crown turns dark: Prolonged moisture can start root or crown rot. Cut affected tissue back to firm, healthy tissue with a sterile blade, discard the rotten material and repot in fresh, airy mix.
• Tan sections appear along the pale margins: Strong sun, heat behind glass or cold contact can mark the variegated tissue. Remove the heat or cold source. If stronger sun caused the damage, reduce the strongest exposure and reintroduce direct sun gradually.
• White cottony clusters or brown shields collect along the leaves: Mealybugs or scale may be present. Isolate the plant, remove visible pests and use a treatment labelled for the pest you identify. Repeat treatment at the interval stated on the label.

Agave angustifolia ‘Marginata’ 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.

Why is it called Agave angustifolia?

Agave comes from the Greek agauos, meaning noble, illustrious or admirable. The epithet angustifolia means narrow-leaved.

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

Adrian Hardy Haworth first described Agave angustifolia in 1812 in Synopsis Plantarum Succulentarum, page 72.