042-88 Ordinance RECORD OF ORDINANCES
Form No. 2806-A
National Graphics Corp., Cols., O.
42 88 Passed - - - -19- -
Ordinance No._____-__------
AN ORDINANCE AMENDING CHAPTER
1187 AND APPENDIX E OF THE DUBLIN
PLANNING AND ZONING CODE RELATING
TO STREET TREE PLANTING REQUIRE-
MENTS AND THE RECOMMENDED LIST OF
TREES FOR DUBLIN
WHEREAS, periodic amendments to the Planning and Zoning Code are neces-
sary to accommodate the needs and desires of the community; to protect
the health, safety, and welfare of the residents; and to promote the
aesthetic appeal, character, and value of neighborhoods; and
WHEREAS, the diversification of street tree plantings adds interest to
the City and insures against loss of all trees in case of an epidemic
disease striking any one species,
NOW, THEREFORE, BE IT ORDAINED by the Council of the City of Dublin,
State of Ohio, 6 of the elected members concurring:
Section 1. That Section 1187.07 Planting Manual, be amended to read as
follows: Developers are requested to refer to the Planting Manual and
Plant List, which are available at the offices of the Dublin Planning
and Zoning Department for minimal requirements to use as guidelines in
meeting the provisions of this chapter.
Section 2. That Section 1187.09 Street Tree Planting Requirements be
amended as follows: The following are street tree planting requirements
for all zoning districts.
Section 3. That Section 1187.09(a)(6) be amended as follows: The
developers shall be required to maintain the trees for one year after the
trees are planted and to replace any tree which dies within such one
year guarantee period. Upon completion of a street tree planting, the
landscape conr_ractor shall contact the Dublin Planning and Zoning
Department for a preliminary inspection. The guarantee period shall
begin after the approval of the Planning and Zoning Department. A
final inspection shall be made at the end of the guarantee period. All
trees not exhibiting a healthy, vigorous growing condition, as determined
by the City's inspection, shall be promptly replaced at the expense of
the developer.
Section 4. That Section 1187,09(e) Reducing Treelawn, be amended as
follows: No person shall by any type of construction reduce the size of
a treelawn without first procuring permission from the Planning Director.
Section 5. That the amendment hereto attached as Exhibit "A" amending
the Planning and Zoning Code Appendix E is hereby adopted.
Section 6. That this Ordinance shall take effect and be in force from
and after the earliest period permitted by law.
Passed this 6th day of June , 1988.
Mayor - Presiding Officer
I hereby certify teat copses of this Ordnance/?esolution were posted in the
qty of Dublin in accordance ~v:tli Secton 731.25 of the Ohio Revised Code.
Attest:
r-----
y [Jerk of Council, Dublin, Ohio
l~
Clerk of C unci
Appendix E
Recommended Trees
for
Dublin, Ohio
1988
Recommended Trees for Dublin, Ohio is designed to encourage
an imaginative selection of landscape trees. Careful selection
will prevent an over-dependence on a few species. This compil-
ation will be useful to residents, nurserymen, horticulturists,
landscapers, developers and landscape architects. Planting and
maintaining a diverse urban forest is the goal of Dublin's tree
programs. This idea is reflected in landscape plan approval by
the Dublin Planning and Zoning Department and in tree planting
and replacement by the Dublin Parks and Recreation Department.
Along an individual street, uniform street tree plantings
are desireable. However, over-use of a few species is inevitable
without a conscious effort to vary plant species and families.
Diversity is achieved in Dublin by varying species selected for
each street. Information on street tree assignment is available
from the offices of the Dublin Planning and Zoning Department and
the Dublin Parks and Recreation Department. Deviations from the
recommended list are permitted with the approval of the Dublin
Planning and Zoning Department.
This list is divided into three size categories: large
trees which mature at a height of 50 feet or more (Group A);
medium trees reaching a mature height of between 30 and 50 feet
(Group B); and small trees which range from 10 to 30 feet at
maturity (Group C). Tree lawn sizes must accommodate the tree
size planted• Group A (>7 ft.), Group B (4-7 ft.), Group C
(3-4 ft.). Use under utility lines is limited to small trees,
although medium trees may be planted as close as 10 lateral feet
to utility lines.
The approximate mature height and diameter of each tree's
crown are given.
Trees are alphabetized by their scientific name with the
common name given. Cultivars best suited to Central Ohio are
also provided. An asterisked entry indicates a tree which is
unsuitable for planting within 15 lateral feet of a sidewalk or
bikeway.
Habit refers to the three dimensional form of the tree. Six
general terms describe the characteristic shape of the trees:
Globular Ovoid Conical Obovoid Columnar Irregular
The tolerance category presents information from various
sources listed in the bibliography. The tree's relative
tolerance to insects, diseases, pollution, and soil conditions
are signified by either a "Y", meaning yes, it is tolerant; "N",
meaning no, it is not tolerant; or meaning no information is
available from these sources.
The comments pertain to any other notable characteristic of
the tree.
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Unacceptable Trees for Street Tree Use
Common Name Scientific Name -
Box Elder Acer neuundo
Silver Maple - Acer saccharinum
Buckeye, Horsechestnut Aesculus species
Tree of Heaven Ailanthus altissima
Paper Birch Betula papyrifera
European White Birch Betula pendula
Northern Catalpa Catalpa speciosa
Ginko (female) Ginko biloba
Osage-orange Maclura pomifera
Apple Malus pumila
Mulberry Morus species
Poplar Populus species
Bradford Pear Pvrus calleryana`Bradford'
Upright English Oak Ouercus robur `fastigiata'
Black Locust Robinia pseudoacacia
Willow Salix species
European Mountain Ash Sorbus aucuparia
Moline American Elm Ulmus americans `Moline'
Siberian Elm Ulmus pumila
Bibliography
Brewer, J.E., L.P. Nichols, C.C. Powell, and E.M. Smith. 1979. _
The Flowering Crabapple: a tree for all seasons.
Cooperative Extension Service of the Northeast States,
publication #NE223. 38 pp.
Chadwick, L.C. Some Deciduous~Shade and Ornamental Trees for
Ohio. Unpublished notes. Dept. of Horticulture, The Ohio
Sate University, Columbus, OH, 43210.
Dirr, M.A. 1977. Manual of Woody Landscape Plants: Their
Identification, Ornamental Characteristics, Culture,
Propagation and Uses. Third Edition. Stipes Publishing
Co. Champaign, Il. 826 pp.
Hightshoe, G.L. 1979. Native Trees for Urban and Rural America:
A Planting Design Manual for Environmental Designers. Iowa
State Research Foundation. Ames, Iowa. 122 pp.
Rogers, M.E. 1980. Tree Species Selector and Planting Guide
for the Urban Dayton Area. Park District of Dayton-
Montgomery County. Dayton, oH. 107 pp.
Smith, E.M. and K.W. Reisch. 1975. Landscape Trees for Ohio.
Cooperative Extension Service/The Ohio State University.
Bulletin #597• Columbus, OH. 27 pp.
Smith, E.M. and S. Treaster. 1987. Evaluation of Flowering
Crabapple Susceptibility to Apple Scab in Ohio - 1986.
pp. 3-7. In Ornamental Plants - 1987: A Summary of
Research. Ohio Agricultural Research and Development
Center. Research Circular #291. Wooster, OH. 56 pp.
Sydnor, T.D. 1986. Some Observations Upon Trees Which Have Been
in the Ohio Shade Tree Evaluation Plot Longer than 5 Years.
The Buckeye Nurseryman. Ohio Nuserymen's Association.
August Newsletter. pp. 1-8.
Appendix E
(f) Number of Varieties Per Street. As a rule streets are more
attractive when they contain only one kind of tree. In new allotments
where an entire street is to be planted it is suggested that the property
owners agree on a single variety.
Although the planting along one street may be of a single variety,
any one community should have a dozen or more kinds. The use of several
varieties adds interest to the street-tree plantings of the City and
insures against the loss of all trees in case of an epidemic disease
striking any one species. The International Society of Arboriculture's
"Diversification Formula" will be used as a guideline to prevent over-
planting of a single tree species or family. This formula states that,
out of the total tree planting, no more than 10~ should be from one
family, and no more than 5~ should be of one species. Subdividiers or
developers are requested to consult with the Landscape Planner for a
list of the current recommended street trees; those from Appendix E,
Recommended Trees for Dublin, and those species and/or families that do
not exceed the Diversification Formula.
(g) Where to Obtain Trees. Trees shall be nursery grown in accor-
dance with good horticultural practices, and grown under climatic condi-
tions similar to those in Central Ohio for a minimum of two years.
Trees shall meet current standards set by the American Association of
Nurserymen and shall be freshly dug, have outstanding form, and be free
of disease, insects, and/or damage.
(h) Planting and Care. In general it will be more satisfactory to
engage a nurseryman, arborist or someone familiar with tree care to do
the planting. If the property owner does the planting, he/she should
familiarize himself/herself with the requirements of successfully trans-
planting trees. Information on shade tree planting and care can be obtained
from the Dublin Planning and Zoning Department; the Ohio Department of
Natural Resources, Division of Forestry, Columbus, Ohio; the Agricultural
Extension Service, The Ohio State University, Columbus, Ohio; or the Ohio
Agricultural Research and Development Center, Wooster, Ohio.
Trees shall be planted in accordance with the requirements specified
in Section 1187.09 (a) 1-9 of the Dublin Planning and Zoning Code, and
following the guidelines in the Dublin Planting Manual.
Proper watering is extremely important for trees the first two years
following transplanting. During dry periods, add enough water to soak
the soil to root depth once a week. Transplanted trees can be overwatered;
if the soil is heavy and drains poorly, the trees can be injured by too
much water as well as too little. Bark mulch applied to the soil around
the tree will help conserve moisture.
M E M O R A N D U M
T0: City Council,
Planning & Zoning Commission
FROM; Mary H. Newcomb, Landscape Planner~~
SUBJECT: Amendments to Landscaping Code
DATE: April 12, 1988
There are two major revisions to the proposed ordinance included in your
packets. The first is a revision of the recommended list of trees for Dublin.
The new list is expanded and up-dated, and provides information not included in
the existing list. The new tree list was developed by Sarah McClellan, Parks
Horticulturist, and myself. It was reviewed by the Dublin Tree and Landscape
Advisory Commission and the Central Ohio Urban Forester from the Ohio Department
of Natural Resources.
The second major revision is the establishment of guidelines to prevent the
over-planting of a single tree species or family. Diversifying the population of
trees in Dublin will avoid the loss of a large number of the City's trees in the
event of an epidemic disease. Diversification will also help to avoid total
defoliation of Dublin's urban forest following the introduction of the gypsy moth
to Central Ohio .
The amendments to the landscaping code will also take care of several other
small items.
MHN:tsb
Enclosures
Appendix E
(f) Number of Varieties Per Street. As a rule streets are more
attractive when they contain only one kind of tree. In new allotments
where an entire street is to be planted it is suggested that the property
owners agree on a single variety.
Although the planting along one street may be of a single variety,
any one community should have a dozen or more kinds. The use of several
varieties adds interest to the street-tree plantings of the City and
insures against the loss of all trees in case o~ an epidemic disease
striking any one species. The International Society of Arboriculture's
"Diversification Formula" will be used as a guideline to prevent over-
planting of a single tree species or family. This formula states that,
out of the total tree lantin no more than o s ou e rom one
famil and no more than 5~ should be of one s ecies. Subdividiers or
developers are requested to consult with the Landscape Planner for a
list of the current recommended street trees; those from Appen ix ,
Recommended Trees for Dublin, and those species and or amilies that do
not exceed the Diversification Formula.
(g) Where to Obtain Trees. Trees shall be nursery grown in accor-
dance with good horticultural practices, and grown under c imatic con i-
tions similar to those in Central Ohio or a minimum o two years.
Trees shall meet current standards set by the American Association of
have outstan ing orm, an e ree
Nurserymen and shall be freshly dug,
of disease, insects, and or damage.
(h) Planting and Care. In general it will be more satisfactory to
engage a nurseryman, arborist or someone familiar with tree care to do
the planting. If the property owner does the planting, he/she should
familiarize himself/herself with the requirements of successfully trans-
planting trees. Information on shade tree planting and care can be obtained
from the Dublin Plannin and Zonin De artment; the Ohio Department of
Columbus, Ohio; the Agricultural
Natural Resources, Division of Forestry,
Extension Service, The Ohio State University, Columbus, Ohio; or the Ohio
Agricultural Research and Development Center, Wooster, Ohio.
Trees shall be planted in accordance with the requirements specified
in Section 1187.09 a) 1-9 of the Dublin Planning and Zoning Code, and
following the guidelines in the Dublin Planting Manua .
Proper watering is extremely important for trees the first two years
following transplanting. During dry periods, add enough water to soak
the soil to root depth once a week. Transplanted trees can be overwatered;
if the soil is heavy and drains poorly, the trees can be injured by too
much water as well as too little. Bark mulch applied to the soil around
the tree will help conserve moisture.