A. Determining Tree Size at Time of Planting.
1. Trees under Four Inches in Caliper. Minimum size at time of planting shall be determined by taking a measurement of the girth or circumference of the tree trunk, in inches, at a height of six inches above the bole, or the location where tree trunk meets the soil it is planted in.
2. Trees over Four, but less than Twelve Inches, in Caliper. Minimum size at time of planting shall be determined by taking a measurement of the girth or circumference of the tree trunk, in inches, at a height of 12 inches above the bole, or the location where tree trunk meets the soil it is planted in.
B. Determining Tree Size of Existing Trees.
1. Existing tree size shall be determined by taking a measurement of the girth or circumference of the tree trunk, in inches, at a height of four-and-one-half feet above the bole, or the location where tree trunk meets the soil it is planted in.
2. In the case of a multi-stemmed tree, the cumulative DBH shall be the square root of the sum of all the individual stem diameters squared. As an alternative, the tree's basal area is the sum of the diameters of all tree stems.
C. Rounding. When computation of the amount of landscaping material to be provided results in a fraction, the minimum number of shrubs or trees to be provided shall be rounded upwards to the next highest whole number.
D. Calculation of Required Landscaping Yard or Area Distances.
1. In cases where a driveway, sidewalk, or greenway trail intersects a required landscaping area or yard, the width of these features shall be subtracted from the yard or area distance.
2. In cases where an easement that prohibits the placement of landscaping material intersects a required landscaping yard or area, the width of the easement shall not be subtracted from the required yard or area distance. Required plant material shall be located outside the easement but within the required landscaping area or yard.
(Ord. 2020-36, passed 12-2-2019)