Plant, Tree & Shrub Library

Other Names:  Weber Agave, Maguey Liso, Century Plant

Description:

As an ornamental, this variety is spectacular in rock gardens, cactus and succulent gardens; thick, spine tipped bluish-green leaves with finely toothed margins; bright yellow flowers on huge spikes at maturity, which may take many years

Ornamental Features

Weber's Agave features bold spikes of yellow cup-shaped flowers rising above the foliage in mid summer. It has bluish-green evergreen foliage. The succulent sword-like leaves remain bluish-green throughout the winter.

Landscape Attributes

Weber's Agave is a multi-stemmed evergreen shrub with a more or less rounded form. Its strikingly bold and coarse texture can be very effective in a balanced landscape composition.

This shrub will require occasional maintenance and upkeep, and usually looks its best without pruning, although it will tolerate pruning. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

• Suckering
• Spiny

Weber's Agave is recommended for the following landscape applications;

• Accent
• General Garden Use
• Container Planting

Planting & Growing

Weber's Agave will grow to be about 6 feet tall at maturity extending to 15 feet tall with the flowers, with a spread of 8 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 10 years.

This shrub should only be grown in full sunlight. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for xeriscaping or the moisture-conserving landscape. It is not particular as to soil pH, but grows best in poor soils. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is not originally from North America. It can be propagated by multiplication of the underground bulbs.

Weber's Agave makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our experts for more information on how to protect it over the winter months.