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09-95 Ordinance RECORD OF ORDINANCES Dayton Legal Blank Co. Form No. 30043 Ordinance No. ummun0.9_-95 Passed_ mum_m____ uuu____m_u _m_ m19_ AN ORDINANCE AMENDING CHAPTER 1187 (LANDSCAPING) RELATING TO STREET TREE REQUIREMENTS WHEREAS, Chapter 1187 of the Planning and Zoning Code (the Landscape Code) was initially adopted to improve the appearance of the community, to provide for buffering between incompatible uses and to promote the pUblic health and safety of the community through a variety of means; and WHEREAS, the City of Dublin became a Tree City in 1988 in part because of its efforts in the area of the planting, care and maintenance of its street trees; and WHEREAS, the City of Dublin continues in its commitment to the goal of a community of tree lined street; and WHEREAS, the Planning and Zoning Commission has reviewed the following revision and recommended approval on January 5, 1995; and WHEREAS, the Tree and Landscape Advisory Committee has provided suggestions and background information in the development of this ordinance and has reviewed the following revision and has voted to recommend approval on October 25, 1994; and WHEREAS, a substantial financial investment has been made by developers and the city in the planting and maintenance of street trees; and WHEREAS, periodic amendments to the Planning and Zoning Code are necessary to provide for the needs and desires of the community and to protect the health, safety and welfare of the residents; NOW, THEREFORE BE IT ORDAINED by the Council of Dublin, state of Ohio, 7 of the elected members concurring: SECTION 1. That the amendment hereto attached as Exhibit "A" amending the Planning and Zoning Code Appendix E is hereby adopted. SECTION 2. That this Ordinance shall take effect and be in force from and after the earliest period allowed by law. Passed this &-rh, day of M~rcA , 1996 . VI~~ ~~~~f~ Attest: . ~tf ~~~ ~ I!rr, Yl7 C erk of Co cil ; r.... " .' . . · l1C!re"y WI,li~ thor copIes of th!s Ol'd'rwme/ltesolbliun--wE e poste Sponsor: Planning Division tffty of Dlibhn to accordance wW\ Section 731.25 of the (Y.l; Revisec ~_e~ (fork nf Cmmdl. OllllHn, Ohio- DUBLIN PLANNING AND Z01\1JNG CO!\11\fiSSION RECORD OF ACTION JANUARY 5,1995 - - - . - --" The Planning and Zoning Commission took the following action at its regularly scheduled meeting: 2. Code Amendment - Chapter 1187 - Landscaping Request: Review and approval of revised street tree list. Applicant: City of Dublin, Planning Division, c/o Barbara M. Clarke, Planning Director, 5800 Shier Rings Road, Dublin, OR 43017. MOTION: To approve this Code Amendment. VOTE: 6-0. RESULT: The Commission recommends approval to City Council. STAFF CERTIFICATION Mary . Newcomb Graduate Landscape Architect AS SUBMITTED TO COUNClL 2/3/r5 FOR MEETING ON 2/d,/tf5 . . ( I Dublin Planning and Zoning Commission Staff Report - January 5, 1995 Page 3 CASE 2: Code Amendment - Chapter 1187 - Landscaping APPLICANT: City of Dublin, Planning Division, c/o Barbara M. Clarke, Director of Planning, 5800 Shier Rings Road, Dublin, OH 43017. REQUEST: Amend Chapter 1187 (Appendix E), Landscape Code, of the Dublin Planning and Zoning Code Concerning Street Trees. UPDATE: This case was held over from the December 8, 1994 Planning and Zoning Commission meeting due to the late hour. The Staff report remains unchanged. BACKGROUND: The Recommended Tree List for Dublin is included in Appendix E of the Dublin Planning and Zoning Code. The tree list has not been divided between recommended street trees and recommended trees for commercial/office/industrial sites. This Code revision will create two lists; a recommended street tree list, and a recommended tree list for commercial sites. The tree list was last revised in 1988. One of the responsibilities of the Dublin Tree and Landscape Advisory Commission is to review and update the tree list every five years. The proposed street tree list was discussed by the Tree and Landscape Commission over an eight month period and was formally approved at the October meeting. The Planning and Zoning Commission is to review and make recommendations on proposed amendments to the Planning and Zoning Code. This is an amendment to Section 1187, Appendix E. The street tree list will be formatted as an ordinance and forwarded to City Council for public hearing and fmal disposition. CONSIDERATIONS: 0 The proposed amendment will create two tree lists within Appendix E: a recommended street tree list and a recommended tree list for commercial sites. The street tree list will be applicable to both residential and non-residential areas and includes the street trees that the City of Dublin will maintain. The tree list for commercial sites will include the trees which can be used for interior landscaping, perimeter requirements, etc. 0 Developers are responsible for the installation of street trees. After a one year guarantee period, the City of Dublin accepts the responsibility for the maintenance of the trees. Due to Dublin's increasing street tree population, it is important to establish a street tree population which limits the use of City dollars on high maintenance for pruning and removal. 0 The City of Dublin Tree and Landscape Advisory Commission reviewed the existing tree list and made recommendations for additions and deletions relevant to street trees. The trees which have been recommended for deletion as street trees include those species which are high maintenance (Le., Callery Pear), susceptible to pests (Le., Littlelea.f Linden), and/or not readily available in the nursery industry (Le., Black Alder). Additions include varieties which have recently been developed and have become available (Le., Preemani Maple) and native species (Le., Chinkapin Oak and Burr Oak). Dublin Planning and Zoning Commission Staff Report - January 5, 1995 Page 4 0 The existing tree list is currently being reviewed by the Tree and Landscape Commission for its applicability to commercial sites. Any revisions to the governing ordinance will be reviewed by the Planning Commission and City Council. STAFF RECOMMENDATION: Staff is requesting a positive recommendation from the Commission on the proposed revision to the Landscape Code. Dublin Planning and Zoning commission Meeting Minutes - January 5, 1995 Page 4 2. Code Amendment - Chapter 1187 Landscaping Mary Newcomb presented this requested street tree amendment to Appendix E of Chapter 1187, Landscape Code. The new tree list was fully reviewed and approved by the Tree and Landscape Advisory Commission. She said after a one year guarantee period, the City accepts permanent responsibility for street trees. Low maintenance varieties of tree species need to be installed initially. Some types were removed from the list due to high maintenance (callery pears) or pest problems (little leaf linden) or were not readily available. Newly developed varieties and more native species were added. She said the existing tree list for commercial sites is currently being revised by the Tree and Landscape Commission and will be proposed as a Code amendment. Staff is requesting a positive recommendation to forward to Council for a Code revision. Mr. Sutphen made a motion to approve this Code amendment. Ms. Chinnici-Zuercher seconded. The vote was as follows: Mr. Ferrara, yes; Mr. Fishman, yes; Mr. Peplow, yes; Mr. Rauh, yes; Mr. Sutphen, yes; and Ms. Chinnici-Zuercher, yes. (Approved 6-0.) DL'BLIN TREE & Lk~"DSCAPE ADVISORY C01'vD\lISSIO~ October 25, 1994 Attendance: Larry Vance, Chairperson KathI") Epp Randall iligmann lary Newc b p la Chope II. 994 Minutes 'ere unanimously approved. Ill. Beau .fication Awards eremony: e A wards Ce emony for ' 94 was well re eived. Photos wer taken of all entrie and displaye in the lobby. ere were two deaths am g the participants s year. The award were present posthumous . to family members. The 1 e William H. Jo n had been a partic' ant in the p ~ram since ill beginning. Next year th e will be a Willi H. Johnson Awar or Annuals, iven in Mr. hnson's honor. His fa was extremely plea d and proud of the ibute. Eval tions were pa ed out to all who anend d. r '95 it was reco nded that a spot b run in the 10 1 papers and . the Home section of e Dispatch, listing th' event, entries and inners. Ano r suggestion 'as to have the applicat" n printed in the Insi Dublin publicatio Paula was c ended for job well done. All ill 'ed Marge Rosher fo . troducing this p ~ram to the mmunity . r IV. Street Tree Species Discussion: The discussion for street tree species continued, - . picking up with the P's. Please see anached list for updated recommendations. Mr. Heiligmann made a motion to accept, adopt and recommend to Planning and Zoning the current revised street tree list. The motion was seconded by Katherine Epp and was unanimously approved. A lener of recommendation, along with a detailed list of the additions and deletions on the list will be submined to Planning and Zoning from this Commission for the December agenda. During the street tree species discussion, a comment/suggestion was made stating that container size Chinkapin Oaks would be perfect for street trees in the Sycamore Ridge subdivision due to the limestone on Tuller Ridge Road. Ms. Chope has SBA Grant money available for this project. Japanese Pagoda Trees are on the original plan. Code Amendment Chapter 1187 - Landscaping History TREE & LAJ\'TJ)SCAPE ADVISORY CO~nsSION FEBRUARY 16, 1994 A 'f'fE!\1J)ANCE: Larry Vance, Tree & Landscape Commission Marge Rosher, Tree & dscape Commission Randall Heiligmann, Tree Landscape Commission Ian Re . ck, Tree & Landsca Commission Mary Ne comb, Planning & Zo . g Liaison Paula Cho Urban Forester ~all to Order '~ . . ll. pproval of Minutes"~utes approved as"corrected. m. ~dUctions - Each me~ber of the committee~ asked to introduce ~ and gaVe short biographical infunnation. " "" IV. Municipal~orestry in the Real ~'orld - presentation giV~ Paula Chope at the "* Nurseryman's Assoc~n Short Course. (S~Ched) ~ V. Street Tree Acceptance List and ONA Landscape Specifications. Paula stated that everyone has been given a copy of the street tree planting manual. Paula asked for changes or input. Main topic for discussion is the street tree list. Paula stated that she revised this document so that it could be given to developers to update them on our policies and procedures. Paula stated that the trees on this list are already planted out on the streets of Dublin. Recommendations for the Commission included: 1). Would like to see additions to the Oak tree list. 2). Offer was made by Randy Heiligmann to put together a list of native trees for consideration to be added to be added to street tree list. 3). To look for some additional acceptable ornamental trees for planting. 4). Make up a list of trees to be listed as street trees that are not on the approved street tree list but would be accepted by a variance. Variance requests must be approved by the Tree & Landscape Commission. 5). Separate out the trees desired for parking lots and' property perimeter requirements. Or on the list, state what the tree's acceptable use is. Code Amendment Chapter 1187 - Landscaping History Tree & Landscape Page Two Commission Meeting Minutes February 16, 1994 6). Change the name from Street Tree Manual to Tree Planting Manual. The responsibilities of this commission go beyond street trees. This item will be further discussed at our next meeting. Randy Heiligman will make up a list of native trees for discussion. Discussion regarding whether the burlap and jute (twine) should be left on the ball when planted. Motion: Ian Rennick Planting Techniques - Line #3 should be changed to reflect the paragraph described in the Ohio Standardized Landscape Specifications - paragraph 3.06- Sec. B - burlap and twine should be left on the ball for planting. Motion carried unanimously. Plant Quality Issue: Paula stated that she uld like to see the additions included in the street tree portion of the dscape Ordinance. Staking: Commission Clean Up Issue: To be ad at the end of planting tee . ques. VI. ture Meeting Topics - Larry ce stated that he would e to commission to have a special p se for each meeting. This ws Paula Chope and M Newcomb to prepare and would all the group to be more produc e. Paula sta at she would like to have Arb Day (last Friday in Ap . ) discussion at the next meeting. . ssion did discuss incorporatin the Landmark Tree pro into Arbor ay activities. Vil. Id Business - Mary Ne comb stated that she has su . tted for the ISTEA fu s for the 12701 33 landscape plan. M will also be taking a reso tion to Council on Mo y night. Paula stat at she has requested ad .. nal money to plant tr on the north side of Tuller Rd. in addition the south side in the SBAlODNR Grant. Paula bmitted within the request to plant 150 trees. Code Amendment Chapter 1187 - Landscaping History Tree & Landscape Page Two Commission Meeting Minutes May 18, 1994 * v. CALL FORINFORMA nON REGARDING THE STREET:MANUAL- There is a revised list for Street Trees. It was noted that All Goldenraintrees have died. The types currently existing on the streets as well as their health, characteristics, availability, location, size, survival, maintenance were discussed, additions and deletions were made to the list. Various types were eliminated and the reasons stated. A discussion centered around what trees where available and cost, Ms. Chope was able to elaborate. This discussion was suspended until some checking and studying could be done as per Mr. Vance's request. Updates for beautification should be in by the end of July or the first of August~ The commission noted that the public is aware of the Beautification Applications. VI. LA1\1J)1\1ARK TREE 'V K - The commission will e getting together to do a "walk around" of the different trees. Itw decided that the public as ell as developers are aware of what the gr n tags are for; and that 're doing what the com . sion wanted them to do. It is felt that the . de in the Dublin News , in a bad area for view and suggested - that the Dublin Villager b called. The commission . scussed the different wa of thanking Gene, even the possibility of noring him with an award. The dates for the judgin f the City eautification was decided for el er the first or second week d of August, if it doesn conflict WI the Irish Festival, Ms. Chope ill check. Tuesday Septe ber 13, 1994 was set to the day th the commission meet with Co cil to share the upcoming e nts ie., the Landmark Program d an overall report of what happening in Dublin. Vll. A. B. c. 10,000 trees as reported by Ms. D. and the survival rates. . VIII. New Business - Topics disc sed were: ! Code Amendment . Chapter 1187 - Landscapmg History DUBLIN TREE M'TI LAl\'TISCAPE COl\1MlSSION June 29, 1994 A TTL,rnANCE: Larry Vance, Chairman Marge Rosher Ian Rennick Randall Heiligmann Mary Newcomb Paula Chope Call to,\>rder: Introductio of Parks secretary, Mar.laine anus. A "thank you" tended to Patty . eHa for her past se ices as recording secretary. . utes: Minutes ap oved with the following ame dment: Ian were in attendance r the May 18, 1994 meeting. ill. A tter was present by 1fr. Vance from The letter introduc welcomed Barbara r, State Foreste 7f- IV. Street Tree Species Discussion: Mr. Heiligmann began the discussion on new street tree species to consider for the recommended list. Starting with "A" and going through the alphabet, ending with lip", all species were discussed. Discussion will continue at the next meeting. An updated list of trees recommended is attached. The criteria for the recommendation is based on low maintenance; water needs; street tolerance and shape, allowing for an attractive canopy. There was discussion in regard to planting trees native to the area. Ms. Chope felt they were difficult to acquire, but would check into the possibility. v. Beautification A w ds Program: Judging for t program will be August 6th. Drivers are to unicipal Building for coffee and pastries and en on to the judging. Lunch will be provided. The judging will end at approximately 2:00 .m. After some dis ssion, it was decided tha: all winners should be notified prior to the a 'ards ceremony. This the judges will provi comments, and the homeowners will be no led of the judging by a oorhanger. Old Business: Attached is a letter of res nation from Dominic P ania, Jr. Ms. ill contact Dr. Sydno inviting him to apply fo the vacancy and Mr. 1 Denyberger. Vil. . "ew Business: Ms. N comb explained the Lands pe Inspection Prog was being conducted ough the Planning D artment. There are curren two interns workin for the Department to 'e sure codes are bei complied with. They wil ontinue to monitor e upkeep on all sites. ew landscaping has 1:) n added to the mound on Wilcox Road. Newcomb is currently orking on the landsca lans for the Coffman R d Bridge. :Mrs. Rosher suggested Ms. Newcomb contact the Dublin Garden Club to donate some oHars towards Code Amendment Chapter 1187 - Landscaping History MEMORANDUM TO: City council FROM: Timothy C. Hansley SUBJECT: Ordinance 09-95 - Amendinq Chapter 1187 Relatinq to Street Tree Requirements DATE: February 1, 1995 Initiated by: The Planninq Division The Recommended Tree List for Dublin is included Appendix E of the Dublin Planning and Zoning Code. The existing tree list has never been divided between recommended street trees and recommended trees for commercialj officej industrial ~ sites (trees to meet the requirements of the Landscape Code The proposed amendment will create two lists: the first inclu es trees to be used as street trees on.!>' for both residential and nonresidential sites; the second list is for trees for nonresidential sites to fulfill Landscape Code requirements (i.e. interior landscaping and perimeter screening) . The overall tree list was last revised in 1988. One of the responsibilities of the Dublin Tree and Landscape Advisory Commission is to review and update the tree list. The street tree list was discussed by the Tree and Landscape Commission over an eight month period and was formally approved at the October 1994 meeting. The Planning and Zoning commission reviewed and recommended approval of the street tree list on January 5, 1995. The nonresidential tree list is currently under review by the Tree and Landscape commission. The trees which have been recommended for deletion include those species which are high maintenance (i.e. Callery Pear), susceptible to pests (i.e. Liitleleaf Linden andjor those not readily available in the nursery industry. Additions include varieties which have recently been developed and become available (i.e. Freemani Maple) and native species (i.e. Chinkapin Oak and Burr Oak) . AS SUBMITTED TO COUNCIL .J. J..3./ 1S FOR MEETING ON 2/ ~ /'15 RECORD OF ORDINANCES [)t1yton Legal Blank Co. Fonn No. 30043 Ordinllllce No. H _m __09-95 Passed._..___ ._____ __"__"'___"'_000__"'___"_"'_00019________ -~-~ ---~---- AN ORDINANCE AMENDING CHAPTER 1187 (LANDSCAPING) RELATING TO STREET TREE REQUIREMENTS WHEREAS, Chapter 1187 of the Planning and Zoning Code (the Landscape Code) was initially adopted to improve the appearance of the community, to provide for buffering between incompatible uses and to promote the public health and safety of the community through a variety of . means; and WHEREAS, the City of Dublin became a Tree City in 1988 in part because of its efforts in the area of the planting, care and maintenance of its street trees; and WHEREAS, the City of Dublin continues in its commitment to the goal of a community of tree lined street; and WHEREAS, the Planning and Zoning commission has reviewed the following revision and recommended approval on January 5, 1995; and WHEREAS, the Tree and Landscape Advisory Committee has provided suggestions and background information in the development of this ordinance and has reviewed the following revision and has voted to recommend approval on October 25, 1994; and WHEREAS, a substantial financial investment has been made by developers and the city in the planting and maintenance of street trees; and WHEREAS, periodic amendments to the Planning and zoning Code are necessary to provide for the needs and desires of the community and to protect the health, safety and welfare of the residents; NOW, THEREFORE BE IT ORDAINED by the Council of Dublin, state of Ohio, of the elected members concurring: SECTION 1. That the amendment hereto attached as Exhibit "A" amending the Planning and Zoning Code Appendix E is hereby adopted. SECTION 2. That this Ordinance shall take effect and be in force from and after the earliest period allowed by law. Passed this day of , 199 - . Mayor - Presiding Officer Attest: Clerk of Council Sponsor: Planning Division AS SUBMITTED 10 :OUNClL 1 /~/~FOR MEE11NG ON:d,hs . EXHIBIT aA" Appendix E Recommended Trees for Dublin, Ohio 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 st~eet 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: OOI1Q 0 () Globular Ovoid Conical Obovoid Columnar Irreqular 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 "_II, meaning no information is available from these sources. The comments pertain to any other notable characteristic of the tree. APPROVED STREET TREES FOR DUBLIN, OHIO LARGE TREES (GROUP A) Acer platanoides Nor way Maple Acer rubrum Red Maple (Native) Acer saccharum Sugar Maple Acer X freemani Freemani Maple Cercidiphyllum japonicum Katsuratree Corylus colurna Turkish Filbert Fraxinus americana White Ash Fraxinus pennsylvanica Green Ash Ginkg-o bilboa Ginkgo (male) Gymnocladus diocus Kentucky Coffeetree Liquidam bar styraciflua S weetgum* Nyssa sylvatica Black Gum (Black Tupelo) Quercus bicolor Swamp White Oak Quercus imbricaria Shingle Oak Quercus macrocarpa Bur Oak Quercus muehlenberg-ii Chinkapin Oak Quercus rubra Red Oak Quercus shumardii Shumard Oak Sassafras albinum Sassafras Sophora japonica Japanese Pagodatree Taxodium distichum Bald Cypress Tilia tomentosa Silver Linden Ulmus parvifolia Lace bar k Elm Ulmus X ~ Hybrid Elm MEDIUM TREES (GROUP B) Acer campestre Hedge Maple Acer truncatum Purpleglow Maple (Shantung Maple) Gleditsia tricanthos var. inermis Honeylocust Phellodendron amurense Amur Cor ktree Prunus sarg-entii Sargent Cherry Quercus acutissima Sawtooth Oak SMALL TREES (GROUP C) Amelanchier arborea Serviceberry Amelanchier X g-randiflora Corn us kousa Kousa Dogwood Crataeg-us crusg-alli var. inermis Thornless Hawthorn Malus ~ Flowering Dogwood Prunus subhirtella var. autumnalis 'Autumnalis' Cherry Syring-a reticulata Japanese Tree Lilac *Northern seed source Other species not on this list must be approved by the Tree & Landscape Advisory Commission I- '0 -~ r-f al C'Cl en s:: 1'0 r-f C ... ... 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N co N N 0 ~ .... +J 0 an I I an I I ~ I I M GlIi-I N N N It) 0 0 0 :::- M N N M I 0 .-I - tf.l ~ ~ ~ E-i - .. ~I.. 'tS .. .. .. .. tf.l r-I Gl ... .. .. ~ r-I 'tS ::> 0 J.l >t +J Q) 0 Gl r-I 0 C) .. orol ItS .. .. ~ ~ e 0' 0 :> J.l .~ ~ .c e r-I ...t UJ e C) Q GlO m +J 0' Gl UJ 0 Gl J.l 8 lCC H 1S..-4 > Ul e orol ul e Q 0' J.l tJ m~ "... Gl .~ J.l .c e ...t J.l e Gl Gl ~ z...t +J ~ C ...t P. orol +J :t ItS .~ .., .., Q +J r-I C ItS ~ .Q C 0 0' J.l orol C cc =' m Gl J.l ItS 0 Gl C =' p. i ...t ~ OGl U ::: ::: r:Io4 ~ ~ tf.l tf.l UJ UJ ~ ~ IS .... .. .. .. .. .. .. .. .. .. .. .. .. ~ ISO Otf.l tf.l CJ- Unacceptable Trees for street Tree Use Common Name Scientific Name Box Elder Acer nequndo Silver Maple ~ Acer saccharinum Buckeye, Horsechestnut Aesculus species Tree of Heaven Ailanthus altissima Paper Birch Betula papvrifera 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 callervana'Bradford' Upright English Oak Ouercus robur 'fastigiata' Black Locust Robinia pseudoacacia willow Salix species European Mountain Ash Sorbus aucuparia Moline American Elm Ulmus americana 'Moline' Siberian Elm Ulmus pumila Biblioqraphv 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, II. 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 Day ton- 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, anyone 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 anyone 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.