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R-7.280-F Establishment Standards. <br />1. Period. The establishment period for an original tree or replacement tree shall <br />begin on the date that the tree is initially installed, or the date that it is replaced, and extends for a <br />three year period from that date. The Urban Forester's office must be notified before a tree is <br />planted (a pre -planting site visit and inspection is highly encouraged), and written documentation <br />of the planting date(s) must be provided to the City. The establishment period runs from the <br />documented planting date. <br />2. Watering. During the establishment period, each tree shall receive 15 gallons of <br />water per week during the growing season (from April 15th through October 15th). Water shall be <br />provided in a manner that allows penetration into the soil around the tree. In some soils or during <br />unusually wet weather, 15 gallons a week may be excessive and lesser amounts may be approved <br />by the Urban Forester. <br />3. Staking. Stakes and ties shall be maintained in a safe and effective manner. Stakes <br />and ties shall be removed after the first growing season or one year after installation. <br />4. Mulching. During the establishment period, a minimum 3 foot x 3 foot planting <br />area around each tree shall be maintained with a layer of bark mulch 2-4 inches deep. The mulch <br />shall be kept at least 2 inches away from the trunk of the tree, and the mulched planting area around <br />the tree shall be kept free of weeds. <br />5. Pruning. <br />5.1 Dead, broken or split branches shall be pruned at the time of planting. <br />5.2 Initial structural pruning shall be performed at the end of the 3 year <br />establishment period. A strong scaffold branch structure shall be developed by pruning to <br />select the primary scaffold branches. <br />5.2.1 Trees shall be pruned to remove branches that are crossing, <br />damaged, diseased, broken, or have included bark. <br />5.3.2 Trees shall not be topped or reduced in height. <br />5.2.3 Trees shall be pruned so at least 2/3 of the tree's height is canopy <br />(with 1/3 of the height being the trunk). <br />5.2.4 The lower limbs shall be pruned off or tipped back to meet <br />compliance with the requirements for clearance over sidewalks and streets as <br />contained in the Eugene Code, 1971. <br />Administrative Order - Page 10 of 14 <br />