A. 
Generally.
Street trees are those trees which are planted at regular intervals in the street right-of-way and shall be planted according to the standards of subsection B., below, in the following circumstances:
1. 
Along both sides of all streets (except alleys) in the C-2 and R-2 districts (except where the street is an existing street without room for the installation of street trees);
2. 
Along both sides of new streets in other districts where there is sufficient right-of-way width to accommodate the street tree lawn; and
3. 
Along existing rights-of-way where a street tree lawn is present and the entity responsible for the right-of-way authorizes the improvement.
B. 
Street Tree Requirements.
Street trees shall be provided in street tree lawns or street tree grates in sidewalks as follows (see Figure 7.201, Street Trees; Street Tree Lawns and Street Tree Grates):
1. 
Along new public streets or private street easements that are created on a parcel proposed for development;
2. 
In medians (including cul-de-sacs) that are created on a parcel proposed for development (see Figure 7.201, Street Trees; Street Trees in Cul-de-sacs);
3. 
In medians that are constructed near a parcel proposed for development in order to manage the traffic impacts of the development, provided that the medians:
a. 
Are of sufficient width to accommodate the root system;
b. 
Are maintained by the property owners’ association of the development that provides the median; and
c. 
The installation of street trees in the median would not be detrimental to public safety.
Figure 7.201
Street Trees
Street Tree Lawns
Street Tree Grates
Street Trees in Cul-de-sacs
C. 
Required Spacing.
1. 
Generally.
Street trees shall be spaced 60 feet on center in street tree lawns or street tree grates, but shall not be installed in locations that interfere with required sight triangles (see Section 8.102E., Sight Distance Triangle Requirements). Special plantings may be clustered if it is demonstrated that the cluster arrangement will not negatively affect the long-term health of the clustered trees.
2. 
Wide street tree lawns and medians.
a. 
If a median or street tree lawn is greater than 20 feet in width, then large trees shall be installed in two rows, with trees staggered, each row spaced 60 feet on-center.
b. 
If a median is 11 feet or more in width, up to 20 feet in width, then it shall be planted with large trees, spaced a distance equal to the diameter of the tree canopy at maturity, less than 10 percent.
D. 
Types and Species of Street Trees.
1. 
Type.
To maintain a consistent appearance along individual street segments, all trees planted shall be large trees with single-stemmed trunks, branched no lower than six feet above median grade (for visibility purposes), and shall be suitable for installation in the space within the street tree lawn or within a street tree grate.
2. 
Species.
Allowable street trees are identified as large trees in Appendix A, Plant Lists.
E. 
Substitution of Large Trees.
Small trees may be substituted for large trees in locations where building setbacks or build-to lines would create conflicts between buildings and large trees, or where overhead utilities require trees with a mature height that is less than the elevation of the power lines. However, if such substitutions are made, then:
1. 
Small trees shall be:
a. 
Clustered in groups of three; or
b. 
Spaced at intervals of 20 feet on center.
2. 
If used, small trees shall be selected which will fit within the street tree lawn without interfering with the street or sidewalk right-of-way.
F. 
Maintenance.
Street trees required by this UDC shall be maintained by a developer, lot owner/operator, tenant, property owners’ association or other entity having a legal interest in the ownership of the subdivision or lots in the subdivision.
G. 
Street Tree Plan Approval.
1. 
A street tree plan shall be submitted to the City with the preliminary or final plat, and all site plans.
2. 
The requirement for street trees may be waived for streets that provide access to fewer than 16 lots and do not provide through access to abutting development.
H. 
Timing of installation.
Street trees shall be installed prior to the acceptance of subdivision improvements, or if the development is not a subdivision, then prior to the issuance of the first certificate of occupancy.
(Ordinance 2015-30 adopted 10/30/15)
A. 
Generally.
Residential lot landscaping and open space landscaping are required on parcels proposed for development as follows:
1. 
Residential Lot Landscaping.
Residential lot landscape areas are required on lots (see subsection B., below) within new residential subdivisions and when new houses are constructed on infill lots within the NC and NT districts.
2. 
Minimum OSR Requirements.
All landscape area plantings on a lot may be used to meet the open space ratio (OSR) requirements as set out in Table 3.101A., Standard and Alternative Residential Development Standards, or Table 3.101B., Residential Development Standards in Nonresidential and Mixed-Use Districts. Required street tree plantings may not be used to satisfy the minimum OSR requirements, as they are planted in the right-of-way, and not on individual lots.
B. 
Residential Lot Landscaping.
1. 
Generally.
Single-family detached and single-family attached residential lots shall be surrounded by yard areas.
2. 
Required Plantings and Location.
Required plants shall be installed as specified below. Any plants in excess of the minimum required plants may be installed in any location on the lot provided there is adequate room for healthy growth and stability.
a. 
Front Yards.
Front yards shall be planted with one large tree, unless a street tree is planted within 15 feet of the front property line, then no tree is required.
b. 
All Other Yards.
No requirements or restrictions on planting.
3. 
Substitution of Large Trees.
Small trees may be substituted for large trees if the dimensions of the lot are such that the large trees would not have room to grow to a full canopy without conflicting with buildings or each other. For the purposes of this substitution, one large tree equals two small trees.
4. 
Ground Covers and Sod.
Front yard areas of residential lots that are not covered by buildings, driveways, swimming pools, or other hard surfaces shall be sodded or planted with permitted ground covers as set out in Appendix A, Plant Lists, unless they are covered by woodlands, crops, or feedstock.
(Ordinance 2015-30 adopted 10/30/15)
A. 
Generally.
Parking lot landscape areas are required on parcels proposed for development as follows:
1. 
Minimum Landscape Surface Ratio (LSR) Requirements.
All landscape area plantings on a lot (including parking lot landscaping and bufferyards) may be used to meet the minimum landscape surface ratio (LSR) requirements as set out in Table 3.301A., Nonresidential and Mixed-Use Development Standards (for nonresidential and mixed-uses), and open space ratio (OSR) requirements as set out in Table 3.101B., Residential Development Standards in Nonresidential and Mixed-Use Districts (for multi-family uses). Required street tree plantings may not be used to satisfy the minimum LSR or OSR requirements, as they are planted in the right-of-way, and not on individual lots.
2. 
Planting Numbers and Locations, Generally.
The minimum number and type of site and parking lot landscape area plants required are set out in this Section. Minimum plant requirements may only be planted in the area specified in the requirement. For example, if a specified number of trees are required per parking lot island, as required by subsection C. [B.], Parking Lot Landscaping, of this Section, then those required plantings may only be planted in areas delineated in Figure 7.203A, Nonresidential, Mixed-Use, and Multi-Family Landscape Areas, as “parking lot landscaping,” and may not be used to meet the minimum requirements for bufferyards, or street tree plantings. The minimum requirements for these landscape area plantings are set out in subsection C. [B.], Parking Lot Landscaping, of this Section (for parking lots), Section 7.201, Street Trees (for street trees), and Division 7.300, Bufferyard Landscaping (for required bufferyards).
Figure 7.203A
Nonresidential, Mixed-Use, and Multi-Family Landscape Areas
B. 
Parking Lot Landscaping.
1. 
Generally.
Parking lot landscaping is required within and around nonresidential and multi-family parking lots that contain more than five parking spaces. This subsection does not apply to single-family detached or single-family attached uses.
2. 
Parking Lot Planting Locations.
As illustrated in Figure 7.203B., Parking Lot Landscape Areas, or Figure 7.203D, Large Parking Row Reduced Interior Islands, as an alternate plan, parking lot landscape areas are required as follows:
a. 
At the ends of parking rows, planted in endcap islands that are not less than nine feet wide and the length of the parking row (i.e., if there is single row of 90-degree parking spaces, the length is 18 feet; if there is a double row of 90-degree parking spaces, the length is 36 feet), with 10-foot curb radii on the side closest to the parking aisle.
b. 
In the middle of parking rows at intervals required by subsection C.3. [B.3.], below, planted in interior islands that are not less than nine feet wide and the length of the parking space (i.e., if there is single row of 90-degree parking spaces, the length is 18 feet; if there is a double row of 90-degree parking spaces, the length is 36 feet), with five-foot curb radii on the side closest to the parking aisle.
c. 
At the corners of parking lots, planted in corner islands, which is the area defined by the extension of the edges of intersecting parking rows.
d. 
A three-foot landscape hedge along 25 percent of parking lot when it is adjacent to street right-of-way and access drives to multi-tenant shopping centers. See Figure 7.203C., Illustrative Composition of Parking Lot Landscape Hedge.
Figure 7.203B
Parking Lot Landscape Areas
Figure 7.203C
Illustrative Composition of Parking Lot Landscape Hedge
3. 
Parking Lot Planting Requirements.
Parking lot landscape islands shall be provided at an interval of one island for each 10 parking spaces, or fraction thereof, planted as follows:
a. 
Each interior and endcap island shall be planted with a minimum of:
i. 
One large tree per parking row; and
ii. 
Ground cover, which shall:
a. 
Consist of xeric shrubs, ornamental grasses, or perennials that are planted at intervals of not less than three feet in a bed of mulch, and sod, which may only be used for a maximum of 25 percent of the ground cover area.
b. 
Not include concrete, asphalt, or other impervious surfaces, with the exception of decorative pavers or stamped, dyed concrete which may be used only within the first foot of the parking island to allow persons to access their vehicle without stepping on landscaping.
c. 
Each parking lot corner shall be planted with two large trees or five small trees and ground cover in conformance with subsection C.3.a.ii. [B.3.a.ii.], of this Section.
4. 
Large Parking Row Planting Requirements.
a. 
In parking lots where parking rows have equal to or exceed 30 parking spaces, the interior planting islands (planted at intervals of not less than one island for each 10 parking spaces) may be reduced to 16 square feet configured in a diamond pattern, with the center point of the diamond located at the point where two (for a single parking row) or four parking spaces meet (for double parking rows). See Figure 7.203D, Large Parking Row Reduced Interior Islands.
b. 
In these reduced parking islands, one small tree shall be planted with the remaining area being filled in with mulch or other ground cover.
Figure 7.203D
Large Parking Row Reduced Planting Island
5. 
Substitution of Large Trees.
Small trees may only be substituted for large trees if the dimensions of the lot are such that the large trees would not have room to grow to a full canopy without conflicting with the building or overhead utilities. For the purposes of this substitution, one large tree equals two small trees.
6. 
Protection of Planting Areas.
Planting areas shall be protected by wheel stops and six-inch curbs per the specifications of the City Engineer. Curbs may be punctuated to allow for stormwater flows into biological treatment areas, as applicable, pursuant to an approved drainage plan, provided that the punctuations do not interfere with their protective function (see subsection D., Use of Island for Low Impact Development, below).
7. 
Purpose and Maintenance.
The primary purpose of planting trees in parking lots is to provide shade and reduce peak temperatures throughout the parking lot. Secondary purposes are to improve air quality, reduce maintenance costs for improved hard surfaces, support stormwater management, and improve overall appearance. To preserve the benefit of the primary purpose, trees shall not be pruned in a manner that attempts to restrict the overall growth of the canopy, except in instances where large trees would not have room to grow to a full canopy without conflicting with buildings or each other.
C. 
[Reserved.]
D. 
Use of Islands for Low Impact Development.
Wherever possible, landscape areas may be used for low impact development (LID) to satisfy stormwater management requirements. These landscape areas may have to exceed the minimum areas required by subsections B., and C., above, in order to meet ensure [sic] engineering best management practices (BMPs) requirements are met (see Section 8.302C., Low Impact Development (LID).
(Ordinance 2015-30 adopted 10/30/15)