Landscaping shall be provided in all developments subject to this chapter as set forth below. Where the width of a required planting strip exceeds the setback requirement for any structure subject to this chapter, the setback shall be increased to provide the full width of planting strip unless otherwise modified in accordance with DMMC § 18.195.420.
(Ord. 1591 § 416, 2014)
All outside storage areas and loading docks shall be screened from public view by another building in the same approved master plan or by fencing and a Type III landscaping strip with a minimum depth of five feet unless determined by design review that such screening is not necessary because stored materials are not visually obtrusive. The five-foot-deep landscaped area may occur within the street right-of-way abutting the property line upon approval of the Planning, Building and Public Works Department.
(Ord. 1591 § 417, 2014; Ord. 1655 § 16, 2016)
Bark, mulch, gravel, or other nonvegetative material shall only be used in conjunction with landscaping to assist vegetative growth and maintenance or to visually complement plant material. Nonvegetative material is not a substitute for plant material.
(Ord. 1591 § 418, 2014)
All landscape areas shall be irrigated by a permanent, underground sprinkler or drip watering system complete with automatic controls.
(Ord. 1591 § 419, 2014)
Slopes shall not exceed a 3:1 ratio (length to height) in order to decrease erosion potential and assist in ease of maintenance.
(Ord. 1591 § 421, 2014)
(1) 
All existing healthy evergreen trees six inches DBH (diameter at breast height) or greater and all existing healthy deciduous trees (excluding alders, European ashes, cottonwoods and willows) eight inches in diameter or greater as measured at 54 inches above the ground shall be retained to the extent feasible within landscape areas. The Planning, Building and Public Works Department shall designate trees to be retained prior to issuance of a land clearing, grading, and filling permit.
(2) 
All clearing and grading shall take place outside the drip line of those trees to be retained; provided, that the Planning, Building and Public Works Department may approve hand clearing within the drip line if it can be demonstrated that such grading can occur without damaging the tree. If the roots are damaged, the Planning, Building and Public Works Department may require restoration measures such as the application of phosphate or potash.
(3) 
Any tree identified to be retained that is destroyed or damaged during construction shall be replaced by the applicant with five trees on the subject property or within a street planting strip near the subject property. Replacement trees shall be a minimum size of eight feet in height for evergreen trees, and two inches in caliper for deciduous, and shall be approved by the Planning, Building and Public Works Department. The Planning, Building and Public Works Department may approve smaller trees if it determines they are of specimen quality. These trees shall be provided in addition to any street trees required under chapter 12.15 DMMC. The exact type and location of street trees shall be determined by the Planning, Building and Public Works Department.
(Ord. 1591 § 422, 2014; Ord. 1611 § 17, 2014)
Proposed landscaping shall reflect consideration of microclimate of the site and surrounding properties, by manipulation of sun, shade, and wind for increased energy efficiency of the development and for maximum comfort of the users of the site. Use of indigenous plant materials shall be preferred.
(Ord. 1591 § 423, 2014)
A Type II landscaping strip with a minimum width of 25 feet shall be provided adjacent to freeways within all zones except Single-Family Residential and R-SE Zones.
(Ord. 1591 § 425, 2014; Ord. 1695 § 5, 2017)
Care shall be exercised in the design of buffering landscaping and in the placement of trees adjacent to Single-Family Residential or R-SE zoned properties in order to minimize maintenance problems stemming from branches overhanging property lines when such trees reach maturity. It shall be the responsibility of the property owner to remove or trim boughs which overhang onto Single-Family Residential and R-SE zoned properties when maintenance problems arise for the owner of the Single-Family Residential or R-SE zoned property.
(Ord. 1591 § 426, 2014)
All portions of a building site not devoted to a building, future building, parking, storage, or accessory uses shall be landscaped in a manner appropriate to the stated purposes of this chapter.
(Ord. 1591 § 427, 2014)
Landscaping shall be placed outside of sight-obscuring or 100 percent sight-obscuring fences unless determined by the Planning, Building and Public Works Department that such arrangement would be detrimental to the stated purpose of this chapter.
(Ord. 1591 § 428, 2014)
No tree, as measured from its center, shall be located within 10 feet of street light standard, or within five feet of a fire hydrant. Tree species whose roots are known to cause damage to public roadways or other public works shall not be planted closer than 10 feet to such public works unless the tree root system is completely contained within a barrier being a minimum of five feet deep and five feet wide. Tree species with water-seeking roots are prohibited within and adjacent to rights-of-way.
(Ord. 1591 § 429, 2014)
In order to protect the landscaping materials planted and to ensure proper growth, all planter areas shall be separated from parking areas and streets by vertical curbing. Curbing shall be continuous Portland cement concrete; provided, however, that Portland cement concrete with vertical curb cuts is allowed for drainage into low impact development storm water facilities; or as approved by the Public Works Director.
(Ord. 1591 § 431, 2014; Ord. 1671 § 16, 2017)
The property owner shall be responsible for the maintenance of all landscaping required pursuant to this section, including any landscaping within a right-of-way, abutting the subject property. Such landscaping shall be maintained in good condition so as to present a neat and orderly appearance; shall be kept free from refuse and debris; living landscape material shall be kept alive and in a healthy condition; and in such a manner as to accomplish the purpose for which it was initially required.
(Ord. 1591 § 432, 2014)