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Thorn Crested Century Plant

Agave lophantha

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Thorn Crested Century Plant (Agave lophantha) at A Very Successful Garden Center

Thorn Crested Century Plant

Thorn Crested Century Plant

(Photo courtesy of NetPS Plant Finder)

Plant Height:  3 feet

Flower Height:  8 feet

Spread:  4 feet

Sunlight:  full sun 

Hardiness Zone:  8a

Other Names:  Thorncrest Century Plant, Agave univittata

Description:

An attractive variety that forms rosettes of dark green leaves, with lighter green center stripes and edges with white teeth; infrequent flower spikes soar upward after at least ten years; a great accent plant

Ornamental Features

Thorn Crested Century Plant features bold spikes of chartreuse cup-shaped flowers rising above the foliage from late spring to early summer. It has attractive dark green foliage with light green stripes and tinges of white. The succulent pointy leaves are highly ornamental and remain dark green throughout the winter.

Landscape Attributes

Thorn Crested Century Plant 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

Thorn Crested Century Plant is recommended for the following landscape applications;

  • Accent
  • Rock/Alpine Gardens
  • General Garden Use
  • Container Planting

Planting & Growing

Thorn Crested Century Plant will grow to be about 3 feet tall at maturity extending to 8 feet tall with the flowers, with a spread of 4 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. 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 a low-water garden or xeriscape application. Like most succulents and cacti, this plant prefers to grow in poor soils and should therefore never be fertilized. 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 native to parts of North America. It can be propagated by multiplication of the underground bulbs.

Thorn Crested Century Plant 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.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Rock  Garden  Container 
Applications
Flowers  Foliage Color  Texture  Plant Form 
Ornamental Features