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• <br /> • 161 <br /> 12.11 Installation and. Maintenance <br /> Existing landscape material in a healthy condition may be used to <br /> satisfy these requirements in whole or in part when such material <br /> achieves the intent of this Article. Sound and accepted horticultural <br /> practices shall be used to protect the root zones of all retained <br /> • existing plant material during construction and also during under- <br /> . ground utility installation. All new landscaping shall be of good <br /> quality and installed, in a sound, workmanship-like manner and according. <br /> to the following planting procedures: <br /> a. Planting holes should be dug at least one-third (1/3) larger <br /> than the root ball. If the soil is poor, holes should be dug • <br /> • two (2) or three (3) times larger than the ball and backfilled <br /> with rich top soil. (See Figure 12.3 and Figure 12.4) <br /> b. Plants shall be planted in their permanent location immediately <br /> upon receipt. Most 'varieties should be planted so that the top <br /> of the ball is one and one-half inches (11/2") below ground level. <br /> It is not necessary to remove the burlap but the strings from • <br /> around the stem of the plant must be removed and the burlap should <br /> be folded from the top of the ball after the plant is in the hole. <br /> The soil around the plant should be tamped to remove air 'sockets. <br /> Mulching with a good mulch to help retain moisture is mandatory. <br /> (See Figure 12.3 and Figure 12.4). <br /> c. Trees which have heavy tops or which are over six (6) feet in <br /> height shall be staked to prevent winds from loosening the roots. <br /> (See Figure 12.5 and Figure.12.6) . <br /> d. All plants shall be soaked thoroughly with water at planting tine <br /> and once a week (unless soPking rains occur) thereafter during the <br /> first growing season. <br /> e. Deciduous trees and shrubs should be cut back to between one-half <br /> ' (1/2) and one-third (1/3) their original size following planting. <br /> Evergreens usually need only light pruning and shaping after <br /> transplanting.' <br /> Parked vehicles may overhang a landscapted area no more than two and <br /> one-half (21/2) feet, provided.' curbing or other wheel stops are installed <br /> to insure no greater overhang or penetration of the landscaped area. <br /> Landscaping, walls, fences, and other material shall be so located as <br /> ' to prevent its damage and/or destruction by overhanging vehicles. <br /> • The type of landscape material to be used in meeting the requirements <br /> of this Article is at the option of the owner or developer but shall <br /> be compatible with surrounding properties in' the style of the layout <br /> • and materials used. <br /> Tables 12.1 through 12.6 provide a listing of acceptable plant materials <br /> which are adapted to the local climate and soil conditions. ?To synthetic <br /> plant materials may be used to satisfy the landscaping requirements. <br /> • 12-6 <br />