Specifications include, but are not limited to: 3.2 All trees shall be a minimum of 1 ½” caliper. 3.2.1 Base bid contract price for trees shall be for the Owner’s preference that all trees be root bag grown. 3.2.2 If the Vendor(s) is not able to provide all specified trees in grow bags, container grown trees may be accepted as alternate bid items. 3.2.3 Add a Supplier Note in the Bid Line Items to identify if the tree is root bag grown or container grown. Any other deviation from grow bag trees must be noted on the bid submittal as noted in Specification 1.4. 3.3 Installation of trees shall be guided by the following specifications: 3.3.1 Owner shall inspect trees prior to delivery and installation. 3.3.2 A pre-construction conference for the Vendor(s) to demonstrate tree planting in conformance with the City’s specifications shall be performed under the observation of an Lincoln Parks and Recreation representative prior to proceeding with the Contract. 3.3.3 Owner will periodically check plantings for conformance with the City’s specifications and installations shall cease until corrections have been completed to the satisfaction of an LPR representative. 3.3.4 Trees shall be double staked using ArborTie® or similar, staking system. 3.3.5 Trees shall be watered initially upon planting. 3.3.6 Trees shall be properly mulched with hardwood mulch to the drip line, upon completion of planting. 3.4 Vendor shall supply, install and fill all Treegator®, or equivalent water bags at the time of planting. 3.4.1 Single bag fits minimum 1” caliper to maximum 4” DBH tree. 3.4.2 Bags shall be constructed of polyethylene with nylon webbing, black polypro straps and nylon zippers. 3.4.3 Bags shall have a minimum of two (2) water release points. 3.4.4 Bags shall be UV stabilized to withstand exposure to sunlight. 3.4.5 Each bag shall hold 18-20 gallons of water. 3.4.6 Bags shall include one (1) year warranty from the date of installation.
