A. Type A: Landscape type A (evergreen screen) standards:
1. For landscaping strips ten feet (10') to fifteen feet (15') wide, trees, shrubs and ground covers per the standards below to result in a total covering of the landscape strip:
a. At least one row of evergreen trees, minimum six feet (6') in height and fifteen feet (15') maximum separation.
b. Permitted evergreen tree species are those with the ability to develop a minimum branching width of eight feet (8') within five (5) years.
c. Shrubs at a rate of one shrub per twenty (20) square feet of landscaped area. Shrubs shall have a minimum container size of two (2) gallons at the time of installation and have a mature height between three feet (3') and four feet (4').
d. Ground cover.
2. For landscaping strips wider than fifteen feet (15'), trees, shrubs and ground covers per the standards below to result in a total covering of the landscape strip:
a. A minimum of one evergreen tree at least six feet (6') in height for every two hundred twenty five (225) square feet arranged in a manner to obstruct views into the property.
b. Permitted evergreen tree species are those with the ability to develop a minimum branching width of eight feet (8') within five (5) years.
c. Shrubs and ground cover as required in subsection A1 of this section.
B. Type B: Landscape type B (mixed buffer) standards:
1. For landscaping strips less than fifteen feet (15') wide, trees, shrubs and ground covers per the standards below to result in a total covering of the landscape strip:
a. Informal groupings of evergreen (minimum 6 feet in height) and/or deciduous. Deciduous trees shall be a minimum two inch (2") caliper as measured four feet (4') from the root ball at the time of planting. At least fifty percent (50%) of the trees must be evergreen. Trees to be spaced at an average of twenty feet (20') on center, but may be grouped in asymmetrical arrangements.
b. Permitted tree species are those with the ability to develop a minimum branching width of eight feet (8') within five (5) years.
c. Shrubs at a rate of one shrub per twenty (20) square feet of landscaped area. Shrubs shall have a minimum container size of two (2) gallons at the time of installation and have a mature height between three feet (3') and four feet (4').
d. Ground cover.
2. For landscaping strips wider than fifteen feet (15'), trees, shrubs and ground covers per the standards below to result in a total covering of the landscape strip:
a. At least one tree sized per subsection B1 of this section per three hundred (300) square feet of landscaped area. At least fifty percent (50%) of the trees must be evergreen.
b. Tree species, shrubs and ground cover as required in subsection B1 of this section.
C. Type C: Landscape type C (see through buffer) standards:
1. For landscaping strips five feet (5') to twenty feet (20') wide:
a. Trees at twenty feet (20') on center on average. Trees may be clustered to allow greater visibility into the site, where desired by the applicant. Trees shall be a minimum two inch (2") caliper as measured four feet (4') from the root ball at the time of planting.
b. Permitted tree species are those that reach a mature height of at least thirty five feet (35').
c. Shrubs at a rate of one shrub per twenty (20) square feet of landscaped area. Shrubs shall have a minimum container size of two (2) gallons at the time of installation and have a mature height between three feet (3') and four feet (4').
d. Ground cover.
2. For landscaping strips wider than twenty feet (20'):
a. At least one tree per three hundred (300) square feet of landscaped area or twenty foot (20') separation (on average). Place trees to create a canopy in desired locations without obstructing necessary view corridors.
b. Tree species, shrubs and ground cover as required in subsection C1 of this section.
D. Type D: Landscape type D (naturalistic buffer) standards:
1. Landscaping shall consist of trees, shrubs and ground covers that are native to northern Idaho and are appropriate to the conditions of the site. Species shall be on the plant list found in appendix B of this title.
2. Arrangement of plants shall be asymmetrical and plant material shall be sufficient in quantity to cover the soil in one growing season.
3. Minimum twenty feet (20') in width if used as a screen or required front yard treatment.
(Ord. 501, 11-18-2008)