Green Ash (Fraxinus pennsylvanica 'Patmore')

General Plant Information (Edit)
Plant Habit: Tree
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Wet
Wet Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Plant Height: 50 to 60 feet
Plant Spread: 30 to 40 feet
Leaves: Good fall color
Fruit: Other: seedless male cultivar
Flowers: Inconspicuous
Suitable Locations: Street Tree
Uses: Shade Tree
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Other methods: Cuttings: Stem
Pollinators: Wind
Miscellaneous: Tolerates poor soil

Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Oct 5, 2018 2:48 PM

'Patmore' is a male cultivar that does not bear seed. It has upright branching and an oval crown. Its compound leaves have 5 to 7 glossy, dark leaflets. It is considered as one of the best selections of cultivars by ornamental horticultural standards of neatness and good form. It was discovered by Richard Brandon from Minnesota as a seedling in Vegreville, Alberta near Edmonton, Canada. Should be Zone 3a cold hardiness. I worked at one nursery in Illinois that offered some, but I have not seen but a few in the Chicago or Philadelphia areas, where "Summit' & 'Marshall's Seedless' were so commonly sold before the coming of the Emerald Ash Borer around 2014.

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