Ash, Green Tree

Botanical name: Fraxinus pennsylvanica
Family: Oleaceae

Native
Deciduous
Reaches a mature height of ‘ 55 – 75′ capable of a heights (rarely) over 125’
Crown is oval upright becoming rounder (often irregular) with age 35′-40′ wide
Trunk diameter can grow up to 3′ in diameter
Rapid growth rate
Bud arrangement
Opposite, pinnately, compound leaves 12″ 14″ long with 5-11 leaflets that have finely serrate margins about 4″ in length
Bright green shiny leaflets are lighter on the underside and become yellow in the autumn.
Does not have notched leaf scars on twigs like the white ash
Fruit – produces samaras 1″-2.5″ long and 1.25″ in width
Prefers full to partial sun
Adapts to a variety of temperatures, soils conditions (including soil compaction) and pH levels
Tolerant of both drought and flood
One of the, if not the, commonly planted trees in the U.S.
Susceptible to attack by Emerald Ash Borer (EAB).
Plant Hardiness Zones 3- 9
Important Update: All ash trees and other local hardwoods are scheduled to be quarantine by Nov. 12th, 2013. This means no removal of any ash tree (including living tree nursery stock) logs, branches, brush or wood chips larger than 1″ (in two dimensions) may be taken outside of Boulder County.