(a) The intent of this section is to set forth minimum standards for landscaping. Landscaped areas are intended to maintain or improve air quality, stabilize soils, increase groundwater infiltration, decrease wind velocity, reduce noise, and create zones of privacy.
(b) For site plans requiring Planning Commission review, buffer strips shall be required where an industrial use abuts any other nonindustrial use or where any parking lot exceeding fifteen parking spaces abuts residential, public, or religious use. Where a landscape buffer strip or greenbelt is required, the following minimum landscape requirements shall be observed.
(1) Two trees plus one additional tree for each twenty-five feet in length of the buffer strip measured along the outer periphery of the required landscape area.
(2) One shrub for every twenty feet in length of the buffer strip measured along the outer periphery of the required landscape area.
(3) All plantings in the buffer strip shall be maintained in a neat and orderly manner. Dead plant materials shall be replaced within a reasonable period of time but no longer than one growing season.
(c) Landscaping shall be located so it does not obstruct the vision of drivers or pedestrians entering or leaving a site.
(d) Parking area landscaping.
(1) All parking areas more than 5,000 square feet in area, except those parking areas for industrial uses which are located in the rear yard, shall be landscaped with one canopy and one evergreen tree for every ten parking spaces, with a minimum of two trees shall be planted, adjacent to the parking area.
(2) Landscape islands or peninsulas shall be installed at the end of those parking rows which are more than twenty spaces long. Within such rows a landscaped island shall be installed every twenty spaces.
(3) Landscape islands or peninsulas at the end of parking rows shall be a minimum of ten feet in width by the length of the parking space or spaces, with an appropriate curb radius. Islands within parking rows shall be a minimum of six feet wide by the length of the parking space or spaces. Islands shall be separated from the parking area by a rolled or stand-up curb.
(4) Each island or peninsula within a parking area shall contain a minimum of one canopy tree.
(5) Landscaping in and adjacent to parking areas shall be of a height and location which will not block the vision of drivers or pedestrians.
(e) Landscape modifications. The landscape requirements of this section may be modified by the Planning Commission or Zoning Administrator in consideration of existing trees on site, proposed building setbacks, existing and proposed uses on adjacent lands, topographical elevations on a site and on adjacent lands. In deciding whether to modify the landscape regulations of this section the Planning Commission or Zoning Administrator shall determine that the intent of the regulations will still be met if modifications are allowed.
(f) Green infrastructure standards.
(1) All development or redevelopment projects requiring site plan approval shall incorporate at least one green infrastructure practice from the list below. Applicants are encouraged, but not required, to integrate multiple practices when feasible.
(2) Acceptable practices include but are not limited to:
C. Tree planting, maintenance, and removal.
(3) The Planning Commission or Zoning Administrator may grant flexibility in how green infrastructure is provided, provided the intent of this section-to promote sustainable, low-impact site design-is met.
A. “Pervious durable surface.” A surface covering the ground that allows the infiltration of water into the ground and provides stormwater treatment and storage without a surface outlet. Also referred to as "permeable" or "porous."
(2) Intent. The use of pervious surfaces in site and street design is intended to mimic natural groundwater infiltration, decrease post-construction stormwater runoff, and implement Low Impact Development (LID) practices.
(3) Permitted pervious surface types. City-approved pervious paving materials include:
A. Grass pavers (for occasional parking; not permitted for high-use areas);
B. Permeable interlocking concrete pavers;
D. Permeable clay brick pavers (for pedestrian and vehicular traffic);
E. Other comparable materials as approved by the Department of Public Works Superintendent and the Approving Authority.
(4) Benefits. Pervious surfaces provide the following benefits:
A. Reduce or eliminate stormwater runoff;
C. Trap suspended solids and pollutants;
D. Improve winter safety by reducing surface ice;
E. Reduce surface temperatures and heat island effects;
F. Reduce need for retention basins and stormwater infrastructure;
G. Lower long-term lifecycle costs when properly installed.
A. Existing natural features, including wetlands, woodlands, landmark trees, and scenic vistas, shall be preserved and incorporated into development where feasible.
B. Screening shall utilize naturalized forms including landforms, trees, shrubs, grasses, and perennials rather than rigid berms or monoculture plantings.
C. Setbacks and landscape buffers shall function as naturalized green spaces incorporating sustainable stormwater management.
D. A minimum of sixty percent of landscape materials shall consist of native species appropriate to Lower Michigan, selected for durability, visual interest, and compatibility with rural and suburban conditions.
(2) Low Impact Development (LID). Low Impact Development (LID) best practices shall be used in the development of any site or development within the districts listed above. The design of stormwater management systems shall respond to the natural drainage patterns of the area.
(3) Natural features preservation plan. A plan shall be submitted identifying existing natural features and site conditions. The plan shall demonstrate how development preserves or enhances these features. Green space enhancements along public road frontages shall be included.
(i) Tree planting, maintenance, and removal.
(1) Prohibited species. The following species shall not be planted within public rights-of-way or curblawn areas: Populus spp., Acer negundo, Ailanthus altissima, Pyrus calleryana, Acer saccharinum, Catalpa, Ulmus spp., Juglans spp., Robinia pseudoacacia, Salix alba, Alnus spp., Taxus spp., Thuja spp., Sassafras albidum, Elaeagnus angustifolia, Morus alba, Prunus serotina, and female Ginkgo biloba.
(2) Spacing requirements.
A. Small trees: minimum twenty feet apart;
B. Medium trees: minimum thirty feet apart;
C. Large trees: minimum forty feet apart; Exceptions may be approved by the Zoning Administrator.
(3) Utilities. Only small or medium trees may be planted within ten lateral feet of overhead primary electric lines.
(4) Distance from infrastructure. Minimum distance from curb or sidewalk:
B. Medium trees: three feet
C. Large trees: four feet
(5) Exemptions. Trees planted prior to adoption are exempt from spacing requirements.
A. Maintenance of trees in public areas shall be performed by the City unless otherwise approved.
B. Minimum clearance: eight feet over sidewalks, fifteen feet over streets (sixteen feet on major thoroughfares).
(7) Visibility and clearance.
A. Vegetation shall not obstruct visibility at intersections or along streets.
B. Property owners shall correct violations within twenty-one days of notice.
C. The City may prune vegetation obstructing public rights-of-way.
(8) Protection of trees. No person shall damage, remove, or attach materials to City trees without authorization.
(9) Utility trimming. Utility companies shall comply with City standards and provide notice prior to non-emergency trimming.
(10) Replacement standard. Trees removed shall be replaced at a ratio of one tree per five removed trees or through a payment in lieu.
(11) Replacement specifications.
A. Deciduous: minimum three-inch caliper;
B. Coniferous: minimum ten feet in height;
C. Prohibited species shall not be used;
D. Replacement trees may count toward other landscape requirements.
(12) Placement. Replacement trees shall be shown on the site plan and located to maximize environmental benefit and reduce heat island effects.
(13) Payment in lieu. A fee of three hundred dollars per tree may be paid to the City in lieu of planting, to be used for tree planting elsewhere within the City.
(Ord. 182. Passed 5-12-98; Ord. 2026-01. Passed 5-26-26.)