In all residential, commercial and industrial developments, a minimum of 15 trees shall be provided for each acre of development, excluding required buffer areas. No fewer than 30% of the trees shall be evergreen and no fewer than 30% of the trees shall be deciduous. Evergreen trees shall be a minimum height of six feet at planting. Deciduous trees shall have a minimum height of 15 feet at planting and a mature height of at least 30 feet. They shall be a minimum caliper of 2 1/2 inches measured at a height of one foot above the base of the tree at planting, except that a minimum of two deciduous trees per acre shall be not less than four-inch caliper measured 1% above the base of the tree.
Existing trees, saved or replace as part of a tree preservation plan under Subsection a1(d) above, may be included as part of the required trees, provided that the trees are not located in a required buffer area, and provided that, where the number of trees saved or replaced exceeds 15 per acre, the number of trees so saved is not reduced.
The number of trees provided shall be pro-rated for fractions of an acre, except that not less than one four-inch caliper deciduous tree shall be provided on any site.
Deciduous trees that do not have a mature height of 30 feet or greater may be substituted for the deciduous trees which are required in the above subsection provided that: two of the smaller trees shall be required for each one larger tree it replaces; and no more than five deciduous trees per acre shall be substituted for in this manner.
No less than 30% of the required trees shall be planted in the required front yard. There shall be no requirement for the mix of deciduous and evergreen trees to be planted in a front yard.