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Re: Durand Eastman Park, Rochester

Posted: Sat Mar 03, 2018 7:16 am
by Jeroen Philippona

For the moment this seems to be the tallest as well as largest Ulmus x hollandica we know of. In the Netherlands indeed the tallest currently known is the 34.8 m tall in Amsterdam, just inside a garden of the Amsterdam University. Till 2 years ago also some Dutch elms of 34 to 35 m tall were alive in a forest near Utrecht, but they died from Dutch Elm Desease (DED). Because of DED some 95 % of the older trees of this clonal type died last century, especially of the clone 'Belgica', wich was the most planted since the 18th century. I don't know what was the former maximum size of Dutch elms in the the Netherlands, but in England especially of the clone Ulmus x hollandica 'Vegeta' became huge: in Oxford, at 'Magdalen College', till it fell in 1911 such an elm stood of 43 m (141 ft) tall and cbh 860 cm (28.2 ft). This tree was planted around 1610. I don't know if the height was measured correct. Information from the Tree Register of the British Isles, Owen Johnson.
Probably the maximum size of Ulmus x hollandica will be comparanble to that of the parent species, Ulmus glabra and Ulmus minor. Of both species relatively few of the really big and old specimen remain because of their vulnerability to DED. The maximum height measured recently for U. glabra (44 m = 144 ft), is in accordance with old measurements of the species.

A third European species, the White Elm, Ulmus laevis, is less vulnerable. Of that more old specimen remain, but few in old forests. Most are solitarian trees, some with cbh up tot 9.7 meter (32 feet), but height not taller than 36 m as well.


Re: Durand Eastman Park, Rochester

Posted: Sat Mar 03, 2018 7:17 pm
by ElijahW

Thanks for your reply. I didn’t think to message you directly, but you found my question anyway. Two of the common Ulmus species in the U.S., americana and rubra are known to attain very similar height maximums as your European elms. Both species have also been hit very hard by Dutch Elm Disease.

The park where this Elm was planted was established about 100 years ago, but I think it’s older than that. How old, I don’t know. I’ll make sure to get a good photo once the tree has leafed out this spring and post it on the BBS. It’s a very large tree, and probably very attractive, as well.

All of your information was very helpful, as well as your description and photos on the Monumental Trees site. Thanks again,


Re: Durand Eastman Park, Rochester

Posted: Tue Jun 05, 2018 8:45 pm
by ElijahW

Tom Howard and I recently made a visit to Durand-Eastman, and I also measured some trees by my lonesome earlier today. Here’s what we found:

*NY Height Maximum

U.S. Natives:

Black locust Robinia pseudoacacia

128.6’ x 6.14’*

Eastern Cottonwood Populus deltoides


Blackgum Nyssa sylvatica


American Chestnut Castanea dentata

52.0’ x 2.38’ (no sign of blight yet)

Northern Catalpa Catalpa speciosa

89.6’ x 7.51’*

Shellbark Hickory Carya laciniosa

97.1’ x 5.15’*

Sweetgum Liquidambar styraciflua

102.8’ x 8.54’

”Katherine” Crabapple Malus halliana X

38.6’ (multiple trunks)*

Giant Sequoia Sequoiadendron giganteum


Vine Maple Acer circinatum

24.5’ x 1.2’*

Bottlebrush Buckeye Aesculus parviflora



Turkish Oak Quercus cerris

94.0’ x 11.34’*

Turkish Filbert Corylus colurna

53.7’ x 5.45’*

Amur cork tree Phellodendron amurense

83.0’ x 4.78’*

Japanese Stewartia Stewartia pseudocamellia


Giant Dogwood Cornus controversa

30.0’ x 4.93’ (3’ from ground level)*

Sachlin Spruce Picea glehnii

73.4’ x 7.73’*

Hondo Spruce Picea jezoensis

“Katherine” Crabapple on left
“Katherine” Crabapple on left
Amur Cork Tree bark
Amur Cork Tree bark
Vine Maple
Vine Maple
Largest Cornus controversa on left
Largest Cornus controversa on left
Largest Silverbell in flower
Largest Silverbell in flower
Silverbell flower
Silverbell flower

Re: Durand Eastman Park, Rochester

Posted: Mon Sep 02, 2019 2:54 pm
by ElijahW

As with my recent update on Highland Park, I'd like to share additional trees I've found and measured in Durand Eastman Park. I apologize beforehand for the long list, but think it looks better this way than just attaching my spreadsheet. Here are the additional trees:

Bitternut/Shagbark hybrid Carya x laneyi

97.2' x 6.28'

Butternut Juglans cinerea

105.8' x 6.03'

Chinese Walnut Juglans x sinensis

91.9' x 12.07'

Northern Red Oak Quercus rubra

102.7' x 14.98'

Scarlet Oak Quercus coccinea

84.8' x 13.92'

Pin Oak Quercus palustris

109.5' x 7.79'

Chestnut Oak Quercus montana

71.8' x 8.84'

Allegheny Chinkapin Castanea pumila

41.2' x 4.47'

Tuliptree Liriodendron tulipifera


Japanese Linden Tilia japonica

61.0' x 3.73'

Mongolian Linden Tilia mongolica

45.5' x 3.51'

Bigleaf Linden Tilia platyphyllos


Eastern Cottonwood Populus deltoides


Longipes Chinese Maple Acer longipes


Chinese Fringetree Chionanthus retusus


White Fringetree Chionanthus virginicus


Eastern Redbud Cercis canadensis

35.7' x 4.50'

Nannyberry Viburnum lentago

23.6' x 1.90' (at 3.5')
22.7' x 2.33' (at 2.7') (Current AF National Champion)
12.5' x 2.25' (at 3')

Red Osier Dogwood Cornus sericea


Korean Hornbeam Carpinus turczaninowii

37.8' x 3.86' (at 3.5')

Persian Ironwood Parrotia persica


Kobus Magnolia Magnolia kobus var. borealis

82.8' x 5.0'
70.4' x 6.4'

Saucer Magnolia Magnolia x soulangeana


Waterlily Star Magnolia Magnolia stellata var. waterlily


Apple Serviceberry Amelanchier x grandiflora (hybrid of A. arborea & A. laevis)


Chinese Pear Pyrus pyrifolia

63.5' x 5.29'

Callery Pear Pyrus calleryana

45.0' x 5.29'

Sargent Cherry Prunus sargentii

49.0' x 6.45'

Apple Malus spp.


Pawpaw Asimina triloba

33.0' x 1.1'

Larch Larix spp. (keys out to L. sibirica, but ID not certain)

121.9' x 4.37'

Eastern White Pine Pinus strobus


Nikko Fir Abies homolepis

107.5' x 10.88'

Moss Sawara Cypress Chamaecyparis pisifera var. squarrosa

106.5' x 9.15'


Re: Durand Eastman Park, Rochester

Posted: Tue Sep 03, 2019 11:04 am
by Lucas
Allegheny Chinkapin Castanea pumila

41.2' x 4.47'

How likely is that? pumila is usually a bush. ... mensis.pdf

Any chance it is one of the mystery chinquapins mentioned here?

Re: Durand Eastman Park, Rochester

Posted: Tue Sep 03, 2019 5:26 pm
by ElijahW

Good questions. I'll have to take a closer look on my next visit. I really don't know.


Re: Durand Eastman Park, Rochester

Posted: Sun Mar 01, 2020 6:40 pm
by ElijahW

Last month I returned to Durand Eastman and remeasured several trees. The Rucker Index is still a little shy of 130’, but it’s getting closer. Here are my measurements:

*NY maximum height

Black Oak Quercus velutina


Red Maple Acer rubrum


American Beech Fagus grandifolia


Black Birch Betula lenta


Rucker Index: 128.1’

Tuliptree 150.1
Black Oak 128.8
Black Locust 128.6
Red Maple 128.0
Rocky Mountain Douglas Fir 126.8
American Beech 126.1
Bitternut Hickory 125.6
Northern Red Oak 124.3
Siberian Larch 121.9
Eastern White Pine 121.5