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Prairie Spire Green Ash

Fraxinus pennsylvanica 'Rugby'

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Prairie Spire Green Ash (Fraxinus pennsylvanica 'Rugby') at Eagle Lake Nurseries

Prairie Spire Green Ash

Prairie Spire Green Ash

(Photo courtesy of NetPS Plant Finder)

Height:  49 feet

Spread:  13 feet

Sunlight:  full sun 

Hardiness Zone:  2b


A tightly narrow shade tree, ideal for articulation or for small properties; lustrous foliage with superb gold fall color, seedless and low maintenance, rapidly becoming a popular front yard tree for smaller home landscapes

Ornamental Features

Prairie Spire Green Ash is primarily valued in the landscape for its rigidly columnar form. It has forest green deciduous foliage. The compound leaves turn an outstanding gold in the fall. However, the fruit can be messy in the landscape and may require occasional clean-up.

Landscape Attributes

Prairie Spire Green Ash is a dense deciduous tree with a strong central leader and a narrowly upright and columnar growth habit. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This tree will require occasional maintenance and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Prairie Spire Green Ash is recommended for the following landscape applications;

  • Shade
  • Vertical Accent

Planting & Growing

Prairie Spire Green Ash will grow to be about 49 feet tall at maturity, with a spread of 13 feet. It has a high canopy with a typical clearance of 6 feet from the ground, and should not be planted underneath power lines. As it matures, the lower branches of this tree can be strategically removed to create a high enough canopy to support unobstructed human traffic underneath. It grows at a fast rate, and under ideal conditions can be expected to live for 70 years or more.

This tree should only be grown in full sunlight. It is very adaptable to both dry and moist locations, and should do just fine under average home landscape conditions. 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 type or pH, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species.

Hardiness Zone Plant Height Minimum Sunlight
Shade  Articulation 
Fall Color  Plant Form 
Ornamental Features