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Rio Verde Chestnut Dioon

Dioon edule 'Rio Verde'

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Rio Verde Chestnut Dioon (Dioon edule 'Rio Verde') at A Very Successful Garden Center

Rio Verde Chestnut Dioon

Rio Verde Chestnut Dioon

(Photo courtesy of NetPS Plant Finder)

Height:  8 feet

Spread:  6 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  8b

Other Names:  Virgin Palm, Chestnut Cycad

Description:

A very slow growing selection with fern like leaves that are longer and wider than the species; develops a trunk over a long period; an attractive accent or container plant; prefers moist, well drained, and fertile soil; hardy and tolerant of light frost

Ornamental Features

Rio Verde Chestnut Dioon's attractive large glossy narrow pinnately compound leaves emerge light green in spring, turning bluish-green in color with pointy lime green spines the rest of the year on a plant with a round habit of growth. The dark brown stems can be quite attractive.

Landscape Attributes

Rio Verde Chestnut Dioon is a spreading evergreen plant with a more or less rounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and should never be pruned except to remove any dieback, as it tends not to take pruning well. It has no significant negative characteristics.

Rio Verde Chestnut Dioon is recommended for the following landscape applications;

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

Planting & Growing

Rio Verde Chestnut Dioon will grow to be about 8 feet tall at maturity, with a spread of 6 feet. It has a low canopy with a typical clearance of 3 feet from the ground. It grows at a slow rate, and under ideal conditions can be expected to live for 50 years or more. As an evegreen perennial, this plant will typically keep its form and foliage year-round.

This plant does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil pH, but grows best in rich soils. It is quite intolerant of urban pollution, therefore inner city or urban streetside plantings are best avoided. This is a selected variety of a species not originally from North America. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Rio Verde Chestnut Dioon is a fine choice for the garden, but it is also a good selection for planting 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 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
Foliage Color  Texture  Bark 
Ornamental Features