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Agave americana 'Variegata' (Variegated Century Plant)
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Guitou1214, no rights reserved (CC0) · Wikimedia Commons

Agave americana 'Variegata'

Variegated Century Plant

Garden selection; species native to Mexico and southwestern United States

At a Glance

FoliageEvergreen
Height3-5 feet (90-150 cm)
Width5-8 feet (150-240 cm)
Maturity10 years

Growing Zones

USDA Hardiness Zones

8 - 11
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Overview

Agave americana 'Variegata' is a yellow-margined variegated century plant forming a rosette 3-5 feet (90-150 cm) tall and 5-8 feet (150-240 cm) wide. Sword-shaped blue-green leaves 24-48 inches (60-120 cm) long carry wide creamy-yellow margins along each edge. The variegation pattern — colored margins with green centers — distinguishes this cultivar from A. americana 'Mediopicta Alba', which has a white center stripe and green margins. Each leaf terminates in a sharp 1-1.5 inch (2.5-4 cm) spine, with serrated brown teeth along the margins. The plant is monocarpic: after 10-25 years of vegetative growth, a single flower stalk 10-25 feet (300-750 cm) tall emerges, produces yellow-green flowers, and the parent rosette dies. Offsets form at the base before flowering and continue the colony. Mature size runs smaller than the all-green species at 6-10 feet (1.8-3 m) wide due to reduced chlorophyll. Sap from cut leaves contains calcium oxalate raphides and saponins; skin contact causes contact dermatitis and mucous-membrane irritation in many individuals. Drought-tolerant once established, with very low water requirements. Full sun and well-draining soil are required. Hardy in zones 8-11 and tolerant of temperatures to 15°F (-9°C). Slow growth at 2-4 inches (5-10 cm) of new leaf per year.

Native Range

The species Agave americana is native to Mexico and the southwestern United States, including Texas, New Mexico, and Arizona. It has naturalized in Mediterranean and arid regions worldwide.

Suggested Uses

Grown as a specimen in xeriscape and Mediterranean-style gardens in zones 8-11, spaced 8-10 feet (2.4-3 m) from walkways and seating. Container culture uses 10-15 gallon (40-60 L) terracotta pots in colder climates, moved indoors when temperatures drop below 15°F (-9°C). The terminal spines and sap restrict use in spaces shared with children, pets, or barefoot foot traffic.

How to Identify

Identified by sword-shaped blue-green leaves 24-48 inches (60-120 cm) long with broad creamy-yellow margins, sharp terminal spines, and brown serrated marginal teeth. The yellow-edged variegation pattern (colored margins, green center) separates it from A. americana 'Mediopicta Alba', which has the inverse pattern (white center, green margins). The mature rosette runs smaller than the all-green species at 6-10 feet (1.8-3 m) wide.

Appearance

Size & Dimensions

Height3' - 5'
Width/Spread5' - 8'

Reaches mature size in approximately 10 years

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~6 weeks
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Monocarpic flowering occurs once after 10-25 years of vegetative growth. A single panicle 10-25 feet (300-750 cm) tall emerges in late spring to summer, bearing yellow-green flowers that draw bees and hummingbirds. The parent rosette dies after seed set, while offsets produced earlier continue the clump.

Detailed Descriptions

Flower Description

Yellow-green on a tall panicle (monocarpic)

Foliage Description

Blue-green with wide creamy-yellow margins and brown serrated teeth

Growing Conditions

Sun Requirements

Requires 6-12 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 8.0(Neutral)
357912
Soil Types
Drainagewell drained

Water & Climate

Water Needs

Very Low

Frost Tolerance

hardy

Time to Maturity

10-25 years to flower (monocarpic)

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Full sun and sharply draining soil are required; rosettes rot in waterlogged conditions, especially in winter. Water deeply once every 3-4 weeks during the growing season; water monthly or less in winter. The sap causes contact dermatitis and mucous-membrane irritation; skin and eye coverage during pruning is standard practice in commercial production. Terminal spines puncture skin; placement at distance from foot traffic reduces injury risk. Cold below 15°F (-9°C) damages leaf tips and can kill the rosette in zones 7 and colder. Agave snout weevil (Scyphophorus acupunctatus) bores into the crown and is a lethal pest in the southwestern United States.

Pruning

Remove dead or damaged lower leaves with a sharp knife or pruning saw at the leaf base. Terminal spine tips can be trimmed with pruners to blunt the puncture hazard near walkways. After monocarpic flowering, the spent rosette must be cut out at ground level; offsets left in place continue the colony.

Pruning Schedule

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late spring

Maintenance Level

very low

Container Growing

✓ Suitable for container growing

Minimum container size: 10 gallons

⚠️ Toxicity Warning

Toxic to pets and humans