7-2A-4: PLANTS:

   A.   Street Tree Definition: All trees on public right-of-way between the curb and the property line along the sides of streets or in medians of all streets, avenues or ways within the City.

   B.   Species, Cultivars And Varieties:

      1.   Table I of this section lists the recommended tree species or their varieties and cultivars acceptable for planting on City rights-of-way or City owned property. The trees are listed by their height and their respective table includes their botanical name, common name, cultivars, growth rate, form and suggested conditions/remarks. The size of tree to be planted will depend on the width of the planting strip and available growing height.

      2.   It is recommended that native tree species be favored in selection due to their inherent characteristics which enable them to prosper under our environmental conditions.

      3.   Unacceptable tree species or their varieties contained in table II of this section shall not be planted on City rights- of-way or other City owned properties because of the reasons mentioned except in special locations when approved by the Public Works Department.

      4.   It is recognized that there are trees contained in table II of this section presently growing in the City right-of-way as a result of unrestricted planting. These trees do constitute a hazard and upon their removal, if the planting space is to be replanted, shall be replaced by a recommended species as listed in table I of this section.

      5.   Tree genera and species not listed in table I or table II of this section may or may not be acceptable. Those plants, at the time the manual was prepared, did not constitute a substantial enough benefit or problem to the community to be included within the scope of this article. Plants which fall under this criteria should be brought to the attention of the Public Works Department.

      6.   When a specified site has been assigned a particular species and/or variety of plant, only that designated plant shall be used at the site. If that species shall be replaced, it shall be replaced by the same species and/or variety upon removal except upon revision, and approval by the Public Works Department, of the planting plan which governs the site. (Ord. 08-11, 8-4-2008)

TABLE I
RECOMMENDED TREES

Tall Trees (>40 Feet)

Botanical Name	Common Name	Cultivars	Growth Rate	Form	Suggested Conditions And Remarks
Acer "keithsform"	Hybrid maple	Pacific sunset	M	Oval	Upright oval habit. Hybrid of A.platonoides and A.truncatum
		Duraheat "moonshine"	M	Oval	Exceptionally heat tolerant new in the market. Use only tree forms
Acer miyabei	State Street Miyabe maple	"Morton"	M	Upright oval	Dark green leaves and golden yellow fall color
Acer nigrum	Black maple		M	Oval	Western, more drought tolerant. Yellow fall color
Acer saccharum	Sugar maple			Oval	Seek local sources
	Crescendo	"Morton"	M	Broadly oval	Good heat tolerance. Orange to red fall color
		"Green Mountain"	M	Upright oval	Sun/shade. Tolerates different soil types. Not salt tolerant
		"Commemoration"	M	Oval to round	Very vigorous. Faster than straight species
		"Legacy"	M	Oval	Thick green leaves, drought tolerant, good vigor. Orange-red fall color
		"Sweet shadow"	M	Oval	Cut leaf form of sugar maple. Good vigor and growth in northern climates
Acer X freemanii	Freeman maple	Marmo	M	Oval	Soil pH below 7.5; attractive fall color; hybrid of red and silver maple
Catalpa speciosa	Catalpa	"Northern"	F	Round	Good street tree. Drought tolerant
Celtis occidentalis	Hackberry		M	Vase	Tolerates alkaline soil; slow to establish; corky bark
		"Chicagoland"	M	Round	Adaptable. Good urban tree
Ginkgo biloba	Ginko (male only)		S	Pyramidal	Urban tolerant; male trees only
Gleditsia triacanthos	Honey locust	Shademaster	F	Irregular	Fruitless; vase shaped with age; ascending branches
		Skyline "skycole"	F	Upright	Fruitless; forms central leader
Gymnocladus dioicus	Kentucky coffeetree		M	Oval	Moist, rich soil; salt tolerant; coarse textured; dioecious
	Expresso		S	Upright oval	Fruitless male form of the coffeetree with a distinct elm like vase shaped habit
Hybrid elms					Recommended on basis of disease resistance to DED and phloem necrosis
Liriodendron tulipifera	Tuliptree		F	Oval	Prefers moist, well drained soil
Platanus x acerifolia	Bloodgood London planetree	"Bloodgood"	F	Broadly oval	Cross between American sycamore and oriental plane resistant to anthracnose
	Exclamation London planetree	"Morton Circle"	F	Pyramidal	Prefers sun and well drained soil
Quercus bicolor	Swamp white oak		S	Round	Soil pH below 7.2; tolerates poor drainage; protect saplings from borers
Quercus macrocarpa	Bur oak		S	Round	Dry to wet soil; slow to establish; protect saplings from borers
Quercus muehlenbergii	Chinkapin oak		S	Round	Tolerant of alkaline soils; protect saplings from borers
Quercus robur	English oak		M	Round	Well drained soil; tolerant of alkaline soils
Quercus rubra	Northern red oak		M	Round	Prefers well drained alkaline soils with full sun
Quercus x scheutteii	Hybrid		M	Round	Hybrid of bur and swamp white oaks. Great for urban conditions
Quercus x warei	Regal prince	"Long"	M	Narrow	Hybrid of English oak. Upright narrow habit
Tilia cordata	Littleleaf linden		M	Pyramidal	Urban tolerant; moist soils; several cultivar selections; pest problems
		Greenspire	M	Pyramidal	Improved form; formal habit
Tilia heterophylla	Beetree linden	Continental appeal	M	Narrow pyramidal	Urban tolerant, narrow form
Tilia tomentosa	Sterling silver linden	"Sterling"	M	Broad pyramidal	Tough urban tree, felty (hairy) leaves. Not as attractive to Japanese beetles
	Green mountain	"PNI 6051"	M	Broad pyramidal	Numerous recommendations from many publications
Tilia x euchlora	Redmond linden	Redmond	M	Pyramidal	Urban tolerant; formal narrow crown widening with age
Tilia x flavescens	Glenleven linden	"Glenleven"	F	Pyramidal	Fast growing straight trunk, open branching with loose leaves
Ulmus	Accolade elm	"Morton"	F	Vase	Glossy deep green foliage
	Triumph	"Morton glossy"	F	Vase	Similar to accolade, may have better form
	Commendation	"Morton stalwart"	F	Upright oval	Better branch structure than accolade
		"Frontier"	F	Vase	High tolerance to Dutch Elm Disease. Good for urban conditions
		"New Horizon"	F	Vase	High tolerance to Dutch Elm Disease. Good for urban conditions
Ulmus Americana		"New harmony"	F	Vase	Resistant to DED per national arboretum release

 

Medium Trees (30 Feet - 40 Feet)

 

Botanical Name	Common Name	Cultivars	Growth Rate	Form	Suggested Conditions And Remarks
Acer pseudosieboldianum	Korean maple		S	Oval	Hardiest of Asiatic small maples for our region. Orange-red fall color
Carpinus betulus	European hornbeam		S	Oval	Urban tolerant; dense habit; attractive smooth bark
Cornus mas	Cornelian cherry dogwood		M	Oval	Early yellow spring flowers, dark green summer foliage, ornamental late summer fruit. Attractive flaky winter bark
Prunus sargentii	Sargent's cherry		M	Upright	Full sun; intolerant of poor drained soils; attractive early pink flowers
Syringa pekinensis	China snow Peking tree lilac	"Morton"	S	Broad	Sun; intolerant of drought; showy flowers mid June, beautiful golden peeling bark
Syringa reticulata	Japanese tree lilac	Ivory silk	S	Broad	Sun; intolerant of drought; showy flowers in mid June

 

Low Trees (15 Feet - 30 Feet)

Botanical Name	Common Name	Cultivars	Growth Rate	Form	Suggested Conditions And Remarks
Carpinus caroliniana	American hornbeam		S	Oval	Moist soil; well drained; shade
Ceris canadensis	Eastern redbud single stem		M	Broad	Sun or partial shade; good for naturalizing; occasional hardiness and disease problems
Malus	Crabapple	Donald Wyman	M	Round	White flowers; small, dark red, persistent fruit, good color through winter
	Sugartyme	Prairifire	S	Spreading	Magenta flowers; small, dark red, persistent fruit; cherry like bark
		Red jewel	S	Pyramidal	White flowers; bright red, persistent fruit; good color through winter
	Crabapple	Royal Raindrops	M	Upright spreading	Bright pink/red flowers, prefers moist, well drained soil
		"Sutyzam"	S	Round	Good disease resistance, persistent fruit
Malus transitoria	Golden raindrops	"Schmidtcutleaf"	S	Vase	Scab resistant, persistent fruit. Some trouble with fireblight in Wisconsin
Ostrya virginiana	Hop hornbeam		S	Pyramidal	Dry soil; shade, interesting hop like fruit
Pyrus fauriel	Korean Sun Pear	Westwood	M	Rounded	Sun, average soil conditions, will not tolerate standing water, suitable under power lines

 

TABLE II
UNACCEPTABLE TREES1,2

Botanical Name	Common Name	Problem(s)
Abies ssp.	Fir	Visibility
Acer negundo	Box elder	Weak wooded
Acer saccharinum	Silver maple	Weak wooded
Ailanthus ssp.	Tree of heaven	Weak wooded/invasive
Amelanchier	All serviceberries	Weak wooded
Betula (other)*	Birch	Borers/short lived
Diospyros ssp.	Persimmon	Litter
Elaeagnus angustifolia	Russian olive	Weak wooded/short lived
Fraxinus	All ash trees	Emerald ash bore
Juglans ssp.	Walnut	Litter
Juniperus ssp.	Juniper	Visibility
Maclura pomifera	Osage orange	Litter/thorns
Malus (other)*	Apple	Disease/litter
Morus ssp.	Mulberry	Litter/short lived
Picea ssp.	Spruce	Visibility
Pinus ssp.	Pine	Visibility
Populus ssp.	Poplar	Weak wooded/short lived
Prunus (other)*	Cherry/plum	Disease/litter
Pyrus	Chanticleer pear	Litter/weak wooded/invasive
Pyrus (other)*	Pear	Litter/weak wooded
Quercus (other)*	Pin oak	Chlorosis
Rhus ssp.	Sumac	Short lived/invasive
Robinia ssp.	Black locust	Shallow roots/short lived
Salix ssp.	Willow	Weak wooded/invasive roots
Thuja ssp.	Arborvitae	Visibility
Ulmus (other)*	Elm	Dutch elm disease

 

Notes:

   1.    When (other)* is indicated after botanical name it means "any species other than the approved species".

   2.    At the discretion of the Street Superintendent to allow species not listed as acceptable to be planted in the parkway.

(Ord. 17-27, 5-1-2017)