(1) TYPE I: SCREEN. Type I landscaping shall generally consist of a mix of predominantly evergreen plantings including trees, shrubs, and ground covers. Evergreen trees shall be a minimum height of four (4) feet at time of planting. Plantings shall be chosen and spaced so as to grow together within three (3) years of their planting in a manner that is sufficient to obscure sight through the barrier. The entire planting strip shall be landscaped; however, those plantings used to achieve the sight-obscuring screen shall cover at least five (5) feet of the width of the strip. Existing vegetation may be incorporated into the landscape design as set forth in 17.45.090 and shall be considered acceptable in lieu of new plantings, provided that it contributes to achieving the purpose of this Chapter.

(2) TYPE II: VISUAL BUFFER. Type II landscaping shall consist of a mix of evergreen and deciduous plantings including trees, shrubs, and ground covers. Plantings of shrubs and ground covers shall be chosen and spaced to result in a total covering of the landscape strip. Shrubs shall be of a type that achieve a height of approximately six (6) feet within three (3) years of their planting in a manner sufficient to screen views along the length of the planting strip. Deciduous trees shall have a minimum trunk diameter of one and three-quarter (1-3/4) inches at time of planting. All trees shall be spaced at intervals which should result in the touching of branches after ten (10) years of normal growth. Existing vegetation may be incorporated into the landscape design as set forth in 17.45.090 and shall be considered acceptable in lieu of new plantings, provided that it contributes to achieving the purposes of this Chapter.

(3) TYPE III: SEE-THROUGH BUFFER. Type III landscaping shall consist of a mix of evergreen and deciduous plantings including trees, shrubs, and ground covers. Plantings of shrubs and ground covers shall be chosen and spaced to result in a covering of the landscape strip within three (3) years of their planting. Shrubs shall be of a type that do not exceed a height at maturity of four (4) feet. Deciduous trees shall have a minimum trunk diameter of one and three-quarter (1-3/4) inches at time of planting, and shall be spaced at intervals which should result in the touch-ing of branches after ten (10) years of normal growth. Evergreen trees shall be a minimum of four (4) feet tall at the time of their planting and shall be spaced so as to approximate the mature spread of the trees used. Existing vegetation may be incorporated into the landscape design as set forth in 17.45.090 and shall be considered acceptable in lieu of new plantings, provided that it contributes to achieving the purposes of this Chapter.

(4) TYPE IV: OPEN AREA LANDSCAPING. Type IV landscaping shall consist of canopy-type evergreen and deciduous trees or spreading evergreen trees planted in wells or strips, with a mix of evergreen and deciduous ground covers, low shrubs, and grass. Shrubs shall be of a type that do not exceed a height at maturity of four (4) feet. Planting wells or strips shall be of a size appropriate to the planting materials. Deciduous trees shall have a minimum trunk diameter of one and three-quarter (1-3/4) inches at time of planting. Evergreen trees shall be a minimum of four (4) feet tall at the time of their planting. Existing vegetation may be incorporated into the landscape design as set forth in 17.45.090 and shall be considered acceptable in lieu of new plantings, provided that it contributes to achieving the purposes of this Chapter.