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recommended_trees.pdf
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Recommended Trees
 
The Cape Cod Commission has published a list of trees encouraged for planting on the Outer Cape. The list is extensive and user-friendly; it groups the trees by height and width at maturity, making it an ideal resource for tree selection and placement. The list appears at pp. 45-65 of the Route 6A Vegetation Management Plan, Cape Cod Commission (1995). The listing of the trees by common and scientific names is immediately below. These are all acceptable for planting in Provincetown with the few exceptions noted in red. For additional information and specific characteristics go to http://www.capecodcommission.org/resources/transportation/Route6A/Vegetation_MP_1995.pdf
 
SMALL TREES       Under 30 ft. Suitable for use near or under power lines
Crabapple                                            Malus spp.
Dogwood, Kousa                                Cornus kousa
Fragrant Epaulette-tree                     Pterostyrax hispida
Hoptree                                                Ptelea trifoliata
Japanese Tree Lilac                          Syringa reticulata
Maple, Amur                                       Acer ginnala
Maple, Paperbark                              Acer griseum
Maple, Tatarian                                  Acer tataricum
Maple, Three-flowered                      Acer triflorum
Maple, Trident                                    Acer buergeranum
Smoketree, American                       Cotinus obovatus                                           
Smoketree, Common                        Cotinus coggygria
Stewartia, Japanese                         Stewartia pseudo-camellia
Stewartia, Korean                              Stewartia koriana
 
MEDIUM TREES      30-45 ft    
Callery Pear                                         Pyrus calleryana spp.                         Overplanted
Carolina Silverbell                              Halesia carolina  
Cherry, Higan                                      Prunus subhirtella “Autumnalis”
Cherry, Sargent                                   Prunus sargentii
Golden Rain Tree                                Keolreuteria paniculata
Hornbeam, American Hop                Ostrya virginiana
Maple, Crimson King (Norway)        Acer platanoides                                 Banned
Magnolia, Kobus                                Magnolia kobus
Magnolia, Loebner                             Magnolia x loebneri
Persian Parrotia                                 Parrotia persica
 
LARGE TREES       Over 45 ft   
Alder, Black                                          Alnus glutinosa
Alder, White                                         Alnus incana
American Yellow-wood                     Cladrastus lutea (kentukea)               
Beech, European                                Fagus sylvatica
Castor-Aralia                                       Kalopanax pictus                                           
Elm, Lacebark (Chinese)                   Ulmus parvifolia
Gingko                                                  Gingko bilboa
Golden-larch                                       Pseudolarix kaempferi
Hornbeam, European                        Carpinus betulus
Horsechestnut                                    Aesculus hippocastanum “Baumannii”
Japanese Pagoda (Scholar) Tree    Sophora japonica
Japanese Zelkova                              Zelkova serrata
Katsura Tree                                        Cercidiphyllum japonicum
Korean Mountain Ash                        Sorbus alnifolia
Littleleaf Linden                                  Tilia cordata
Magnolia, Cucumbertree                   Magnolia acuminata
Maple, Red*                                         Acer rubrum*
Maple, Sugar                                       Acer saccharum
Maple, Sycamore                                Acer pseudoplatanus                         Banned
Oak, Pin                                                Quercus palustris
Oak, Northern Red*                            Quercus rubra*
Oak, Swamp White                             Quercus bicolor
Oak, White*                                          Quercus alba*
Oak, Willow                                          Quercus phellos
Tupelo, Black Gum*                            Nyssa sylvatica*
Turkish Filbert                                     Corylus colurna
Turkish Hazel                                      Corylus colurna
 
EVERGREEN TREES        Good for screening    
Cedar, Eastern Red*                           Juniperus virginiana*
Cypress, Leyland                                x Cupressocyparis leylandii
Fir, Cicilia                                             Abies cilicica
Fir, Korean                                           Abies koreana
Fir, Nikko                                             Abies homolepsis (brachyphylla)
Fir, White                                             Abies concolor
Holly, Longstalk                                 Ilex pedunculosa
Japanese Umbrella Tree                  Sciadopitys verticillata
Pine, Austrian                                     Pinus nigra                                        
Pine, Eastern White*                          Pinus strobus*
Pine, Japanese White                        Pinus parviflora
Pine, Korean                                        Pinus koraiensis
Pine, Scots                                           Pinus sylvestris
Pine, Swiss Stone                               Pinus cembra
Spruce, Oriental                                  Picea orientalis
Spruce, Serbian                                  Picea omorika
 
Trees indicated in red have been removed from the 1995 list as not acceptable for planting in Provincetown, either because they’ve been overplanted in town or banned in the Commonwealth.

Another list of trees acceptable for planting in Provincetown, titled Trees & Shrubs for Coastal Environments, is published by the Cape Cod Cooperative Extension, located in Barnstable. Plants on this list were selected based on their ability to grow in coarse soils and windy environments, and for salt spray tolerance. To download the document, go to
http://www.grownativemass.org/sites/default/files/downloads/Cape%20Cod%20Coop%20Ext%20Plant%20List.pdf. Here is a listing of these trees by common and scientific names; the online resource should be consulted for more detailed information. These are the trees on this list that do not appear on the Cape Cod Commission list.
 
SMALL TREES       Under 30 ft. Suitable for use near or under power lines
Dogwood, Alternate-leaf                     Cornus alternifolia
Dogwood, Flowering*                          Cornus florida
Hawthorn, Cockspur                           Crataegus crus-galli
Holly, American*                                   Ilex opaca
Hornbeam, American                          Carpinus caroliniana
Magnolia, Sweetbay                            Magnolia virginiana
Sassafras                                              Sassafras albidum
Serviceberry, Downy*                          Amelanchier arborea
Serviceberry, Smooth                          Amelanchier laevis
Shadbush*                                            Amelanchier canadensis
 
MEDIUM TREES     30-45 ft
Birch, River                                             Betula nigra
Hackberry                                               Celtis occidentalis
Willow, Black                                          Salix nigra    
 
LARGE TREES       Over 45 ft
Ash, White                                            Fraxinus americana
Ash, Green                                            Fraxinus pennsylvanica
Basswood, American                          Tilia americana
Beech, American*                                Fagus grandifolia
Oak, Black*                                           Quercus velutina
Oak, Chestnut                                       Quercus prinus
Oak, Post                                               Quercus stellata
Oak, Scarlet*                                         Quercus coccinea
Poplar, Tulip                                           Liriodendron tulipfera
  
EVERGREEN TREES            
Cedar, Atlantic White                          Chamaecyparis thyoides                    
Spruce, Black                                       Picea mariana
Spruce, White                                       Picea glauca
 
*Native to Cape Cod
 
Trees on a third, shorter list, published by the Brewster Conservation Commission, are also acceptable for planting in Provincetown. These are the trees on this list that do not appear on either the Cape Cod Commission list 1995 or the Cape Cod Cooperative Extension list.
 
SMALL TREES       Under 30 ft. Suitable for use near or under power lines
Chokecherry                                          Prunus virginiana
Pin Cherry                                              Prunus pensylvanica
Pagoda Dogwood                                Cornus alternifolia
 
MEDIUM TREES    30-45 ft
American Aspen                                  Populus grandidenta  
 
LARGE TREES       Over 45 ft
Black Cherry*                                       Prunus serotina*                   
Paper Birch                                           Betula papyrifera
Quaking Aspen                                     Populus tremuloides
 
EVERGREEN TREES
Eastern Hemlock                                 Tsuga canadensis           
 
*Native to Cape Cod
 
Vulnerable Trees. A word of caution: The lists published by the Cape Cod Commission and the Cape Cod Cooperative Extension include trees known to be hosts to the Asian longhorned beetle (“ALB”) and the emerald ash borer (“EAB”), two insects that kill trees. These insects have attacked, and killed, hundreds of millions of trees in the United States. So far (as of this writing in 2017) neither insect has been detected on Cape Cod. When planting trees in Provincetown, you may want to consider planting trees that these insects do not prefer. The ALB prefers maple species (Acer), including boxelder, red, silver, and sugar maples. Other preferred hosts are birches, Ohio buckeye, elms, horsechestnut, and willows. The EAB attacks only ash trees (Fraxinus).
 
An insect that has been detected on Cape Cod is the Southern pine beetle (SPB), which infests pine trees. All pine trees are susceptible, including pitch pine, white pine, and red pine. In addition to pines, hemlocks and spruce may also be affected in highly infested areas. Pitch pine is a dominant tree on Cape Cod. So far, the SPB has been found in traps on the Cape but not in trees.
 
Stay alert to local and state regulations for insect pest control that may be issued after the date of this writing.
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