New Search
2. Prune off all dead, damaged, broken, or frayed roots prior <br /> <br /> 1 to planting. <br /> 2.1.6 Planting <br /> a) Set the tree on undisturbed solid ground in the center of the hole so that <br /> the upper surface of the root ball or the trunk flare is a minimum of 1" and <br /> a maximum of 2" above final grade. <br /> i <br /> b) Set the tree plumb, upright, and faced for best appearance. Prune to <br /> <br /> ~ remove any damaged or broken branches. <br /> c) Backfill the hole with the original soil. If a trench or other pocket of <br /> non-soil material (gravel, CDF, etc.) has been encountered, such gravel <br /> or other material shall not be used as backfill. For trees supplied with <br /> mycorrhizal fungi and / or hydrogel, backfill the hole half way and then <br /> evenly distribute the pre-measured product supplied on the right and the <br /> left quadrants of the tree (when viewed from the street). While <br /> backfilling, gently firm the soil into place around the root ball. If the tree is <br /> balled and burlapped, cut and pull away any twine. If wires are used <br /> around the ball, cut the wire on the upper 1/3 of the ball and remove or <br /> fold it down. Leave the lower 2/3 of the wire basket in place. Peel the <br /> burlap down 1/3 of the way down the root ball. It will decompose over <br /> time. With container trees, remove the tree from the container and <br /> inspect the roots. If they are tight and circling around the edge of the pot, <br /> take a knife and score several times around the circumference of the root <br /> ball. Continue to add soil while gently tapping it around the roots to <br /> eliminate any air pockets. Add 15 gallons of water immediately, making <br /> sure to do it slowly, so it soaks into the root zone. Add additional water <br /> until the soil is saturated and all air pockets are removed. <br /> d) Mulching- Scrape off any sod, grass, or other vegetation from a 6 foot <br /> diameter circle around the tree. In areas where six feet is not available <br /> between the sidewalk and the curb, the entire area shall be squared off <br /> for a distance of six linear feet centered on the tree. Apply 3 inches of <br /> mulch over the entire area, except for within two inches of the trunk. <br /> e) Irrigation conflicts- Occasionally, the situation will be encountered where <br /> existing irrigation runs down the center of the planting strip, conflicting <br /> with the installation of trees under this agreement. When this occurs, the <br /> contractor shall reroute the irrigation around the planting hole with four 90 <br /> degree bends or approved alternative. Contractor shall be compensated <br /> for such rerouting at the price bid for this work in section 3.1.2 <br /> 2.1.7 Watering Basin <br /> In order to direct water to the roots, create a continuous 3 inch high raised <br /> berm at a radius of 3 feet around the tree. If the space available is less <br /> than 3 feet, make the radius of the berm as big as possible. <br /> 2.1.8 Staking <br /> 2006200043 Page 5 <br /> <br />