Fraxinus pennsylvanica, commonly called green ash, has the largest growing range of any of the native ashes, extending from Nova Scotia to Alberta south to Florida and Texas. This is a lowland species that is commonly found throughout the State of Missouri in low woods, floodplains and along streams, ponds and sloughs (Steyermark). It is a medium sized tree, typically growing 50-70’ tall. Green ash is primarily dioecious (separate male and female trees). ‘Patmore’ is a male cultivar (ergo seedless) that was originally discovered in 1967 as a seedling mutation of unknown parentage growing in a cultivated area along a street in Vegreville, Alberta, Canada. It was subsequently introduced into commerce in 1976. U. S. Plant Patent PP04,684 was issued on April 7, 1981. ‘Patmore’ is a vigorous, pyramidal tree with a strong central leader, ascending branches and a symmetrical, rounded crown. Clusters of inconspicuous, apetulous, greenish-purple, male flowers appear in April-May after the foliage emerges. Compound, odd-pinnate, glossy, medium green leaves (to 12″ long), each with 7 (5-9) serrate, oval to oblong-lanceolate leaflets (3-4″ long), are attractive throughout the growing season. Foliage turns yellow in fall, with the quality of the fall color often varying considerably from year to year. Ash-gray to gray-brown bark develops distinctive diamond-shaped ridging on mature trees. ‘Patmore’ is very similar in appearance to F. pennsylvanica ‘Marshall’ (also known as ‘Marshall’s Seedless’).
Winchester Gardens generally stocks this item.