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BttI NUMBER: RFPIDF-04/05-99 OPENING DATE: JUNE 30, 2005 @ 2:00 P.M. EXHIBIT C PLANTING AND MAINTENANCE GUIDELINES A. Planting Site factors which influence long-term survivability should be considered: overhead and underground utilities, sidewalks, sign conflicts, traffic visibility, light poles, right-of-way or site improvements, size of planting space/site, etc. All planting stock or replacement stock must be Florida Grade #1 or better. All synthetic or non-biodegradable material such as nylon rope, synthetic wrap, treated burlap, etc. must be removed from the root ball before planting. All biodegradable material should be removed from the upper 1/3 of the root ball. Precautions should be taken to eliminate any material from extending above the soil surface where it can act as a wick and dry the surrounding soil. If trees are planted with wire baskets around the root ball, it is recommended that the top two tiers of wire be cut and removed after the root ball is set in the planting hole. The planting hole should be at least 3-5 times the diameter of the root ball (where possible) and the same depth as the root ball. Position the tree or palm in the center of the planting hole with the top of the root ball even with the surrounding soil surface. Backfill with soil from the planting site, if it is not contaminated. All large rocks should be removed. When the hole is half full, slowly water to saturate the soil and remove air pockets, then continue to fill the hole with soil. It is not recommended that large amounts of organic matter be incorporated. into the backfill. Rake the soil evenly around the entire planting area. Water thoroughly to remove air pockets, secure the soil around the roots, and provide nourishment. B. Mulching Mulch an area at least three times the diameter of the root ball to a depth of 2-4" with wood chips, bark mulch, shredded mulch, leaves or pine needles. Keep the mulch several inches away from the tree or palm trunk. Replenish mulch as it decomposes maintaining a 2-4" layer over the life of the project. C. Staking Stake only if necessary; for example, if the tree or palm will not stand on its own due to potential vandalism or strong winds. Use flexible materials such as strapping or commercially available ties that give as the tree diameter increases and as the tree moves. Biodegradable material is recommended. Do not use wire even if the wire is inside rubber hosing. Stakes and ties should remain on the trees no longer that one year to avoid girdling. 59