[Zoning Order §14.080, 4-2-2008; Resolution 1-14-2010A Exh. A, 1-14-2010; Ord. No. 10-0145 §§1 — 2, 2-18-2010]
A. 
Street Frontage.
1. 
One (1) tree shall be planted for each fifty (50) feet of street frontage, public or private, within the landscaped setback abutting the street frontage with respect to development in the "PM" District. In all other districts, one (1) tree shall be planted for every seventy-five (75) feet of such street frontage. These trees may be clustered or arranged within the setback, if approved as part of the landscape plan. The street trees must be within the closest twenty (20) foot wide strip (outside of the right-of-way) along the street frontage, except where the building setback is less than twenty (20) feet.
2. 
In commercial and industrial districts, any parking or loading area visible from a street shall be separated from the street right-of way with a landscape strip at least twenty (20) feet wide.
3. 
One (1) shrub shall be provided for each twenty (20) feet of street frontage or portion thereof within the landscaped setback abutting this frontage. These shrubs may be clustered or arranged within the setback.
4. 
There should be no more than four hundred (400) feet between clusters.
B. 
Open Yard Areas.
1. 
In addition to street frontage requirements, the minimum open yard area landscaping requirements shall be two (2) shrubs per five thousand (5,000) square feet of total lot area (except for tracts of land for which this Article imposes no yard requirements and permits one hundred percent (100%) coverage of the lot by buildings), excluding building footprint area. For schools and churches/places of worship, large sports/play fields and other areas specifically open to the public for use, i.e., tennis courts, paved play areas, paved parking lots, etc., shall be excluded in the calculation of this requirement.
2. 
All portions of the site not covered with paving or buildings may be landscaped or left in a natural state in accordance with an approved landscape plan. Provision shall be made for open areas not planted with materials to be covered with vegetative growth. Ground cover may be utilized on all slopes in excess of 3:1.
3. 
In addition to the trees required based upon street frontage, additional trees shall be required at a ratio of one (1) tree for every five thousand (5,000) square feet of lot area not covered by buildings/structures. For schools and churches/places of worship, large open sports/play fields may be excluded in the calculation of lot area. The remaining open space shall be applied to the ratio for tree planting as stated herein.
4. 
When a site has existing trees that will remain, those trees may be identified and substituted for the open yard area as required by this Section.
[Ord. No. 23-0177, 3-30-2023]
C. 
Trash Storage Containers. A detailed drawing of enclosure and screening methods to be used in connection with trash storage containers on the property shall be included with the landscaping plan. (See Article VII, Division 7.)
D. 
Means Of Relief. The Director may allow deviations from this Section on the basis of evidence that the site conditions make compliance unreasonably difficult.
[Zoning Order §14.090, 4-2-2008]
A. 
Frontage landscape strips shall contain no structures, parking areas, patios or stormwater detention facilities, unless included in the landscape plan as an amenity, except for the following:
1. 
Retaining walls or earthen berms constructed as part of an overall landscape design;
2. 
Pedestrian-oriented facilities, such as sidewalks and bus stops;
3. 
Underground utilities;
4. 
Driveways required for access to the property; or
5. 
Signs otherwise permitted by this Article.
B. 
All portions of a frontage landscape strip shall be planted in trees, shrubs, grass or ground cover, except for those ground areas that are mulched or covered by permitted structures.
C. 
Plant materials in the frontage landscape strip are not to extend into a right-of-way maintained by the Missouri Department of Transportation or Jefferson County, unless specifically allowed by the respective controlling agency.