Agave americana 'Mediopicta Alba'

Agave americana 'Mediopicta Alba'

Agave americana 'Mediopicta Alba' is a variegated century plant with broad, rigid leaves arranged in a strong basal rosette. Each leaf carries a creamy-white central band framed by grey-green margins, creating a clear striped pattern from the centre of the crown outward.

Give this substantial agave a bright room, conservatory, sheltered patio or frost-free container display. Its thick leaves widen steadily with age, and the rosette needs enough space around the pot for safe handling as it matures.

Agave americana 'Mediopicta Alba' at a glance

• Large variegated cultivar of Agave americana
• Grey-green leaves with a broad creamy-white central stripe
• Rigid leaf margins with marginal spines and a strong terminal spine
• Slow-growing rosette with strong long-term container presence
• Produces basal offsets as mature plants develop

Origin, rosette growth and container behaviour

Agave americana is native from the southern United States to Mexico, where it grows as a succulent perennial in seasonally dry habitats. 'Mediopicta Alba' is a cultivated variegated selection of the species, grown for its pale central leaf band and broad rosette form.

The plant develops from a short central stem with thick, water-storing leaves. Mature specimens can become heavy and wide, especially outdoors in mild climates or under glass. In indoor containers, growth is slower, but the plant still needs strong light, a stable pot and a gritty root zone.

Agave americana rosettes are monocarpic. A mature flowering rosette eventually sends up a tall central bloom stalk and then declines after flowering, while basal offsets can continue the plant.

Care for Agave americana 'Mediopicta Alba'

• Light: Give full sun or the brightest indoor position available. Strong light supports firm leaves and a compact rosette.
• Watering: Water deeply, then allow the substrate to dry completely. In winter, keep the root zone much drier, especially in cool rooms.
• Substrate: Use a mineral-rich succulent mix with pumice, lava, grit, coarse sand and a smaller organic fraction.
• Drainage: Use a pot with drainage holes and empty standing water from saucers or outer pots after watering.
• Temperature: Keep potted plants frost-free. Cool winter conditions are safest when the substrate stays dry.
• Humidity: Normal indoor humidity is suitable. Good ventilation helps the crown and leaf bases stay dry.
• Feeding: Feed lightly during spring and summer with diluted cactus or succulent fertiliser.
• Repotting: Repot when the plant becomes unstable, offsets crowd the pot or the substrate has compacted. Use a heavy pot for larger rosettes.
• Pruning: Remove fully dried outer leaves with clean tools. Wear gloves and keep the leaf tips away from your face and arms.
• Offsets: Basal offsets can be removed once they have their own roots. Let cut surfaces dry before potting.
• Outdoor placement: Move outdoors gradually in late spring after cold nights have passed. Bring it back under shelter before prolonged autumn rain.

Agave americana 'Mediopicta Alba' issues

• Soft leaves or blackened crown tissue: Check for cold, wet substrate and poor drainage. Move the plant warmer and let the root zone dry.
• Brown leaf tips: Check for old mechanical damage, mineral build-up, dry winter stress or repeated contact with hard surfaces.
• Loose, elongated growth: Increase light gradually and move the plant into a sunnier position.
• Scarring on pale central bands: Variegated tissue can mark from handling, shipping or sudden sun. New leaves show current growing conditions most clearly.
• Offsets crowding the pot: Thin selected offsets during repotting if the plant becomes difficult to water or handle.

Safety notes for Agave americana 'Mediopicta Alba'

Agave americana 'Mediopicta Alba' has sharp marginal spines, a strong terminal spine and irritating sap. It can be harmful if chewed by pets or children. Place it away from narrow walkways and wear gloves, long sleeves and eye protection when repotting or dividing offsets.

Name origin and cultivar background

Agave americana L. is a species in the Asparagaceae family and was first published by Linnaeus in 1753. The genus name Agave comes from Greek wording commonly interpreted as “noble” or “admirable”. The species epithet americana means “of America”, referring to the plant’s New World origin. 'Mediopicta Alba' is a horticultural cultivar name used for the white-centred variegated form.

Agave americana 'Mediopicta Alba' needs a bright, spacious container setting where its broad variegated leaves can mature safely.