Loading...
HomeMy WebLinkAbout32-93-10-Trees,-Shrubs,-And-Groundcovers_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 1 of 14 Section 32 93 10 TREES, SHRUBS, AND GROUNDCOVERS PART 1 - GENERAL 1.1 SUMMARY A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 01 Specification sections, apply to work of this section. B. Related Sections: The following Sections contain requirements that relate to this Section: 1. Section 32 93 00 – Soil Preparation for Planting Beds 1.2 DESCRIPTION OF WORK A. Provide all materials, equipment and labor necessary to complete the work as indicated on the drawings or as specified herein. B. The principal work of this section includes, but may not be limited to, the following: 1. Layout and Excavation of Plant Holes 3. Planting Installation 4. Backfill with approved planting soil 5. Watering 6. Mulching 7. Fertilizing 8. Pruning 9. Staking and Guying 10. Antidessicant Application 11. Tags and Labels 12. Maintenance 13. Plant Replacement Guarantee 1.3 REFERENCES A. ANLA: American Nursery and Landscape Association, “American Standard for Nursery Stock”, ANSI Z60.1-2004, or latest edition. B. AJCHN: American Joint Committee on Horticultural Nomenclature. C. AOAC: Association of Official Agricultural Chemists. D. USDA: United States Department of Agriculture, Agricultural Research Service, “USDA Plant Hardiness Zone Map”. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 2 of 14 E. TCIA: Tree Care Industry Association (formerly the National Arborist Association), “Standards for Pruning Shade Trees” latest edition as published by American National Standards Institute. 1.4 QUALITY ASSURANCE A. Contractor shall specialize in work outlined with a minimum of five (5) years of landscape work similar in materials, design and extent to that indicated for this project and with a record of successful landscape establishment. Installer shall maintain an experienced supervisor on the project site during all times that landscape construction is in progress. Contractor shall provide written qualification data for firms and persons to be responsible for Work, to demonstrate their capabilities and experience. Include lists of completed projects, with project names, addresses, phone numbers, and names and address of client. B. Chemicals including but not limited to pesticides, fertilizers, herbicides, pre- emergents, fungicides shall be applied by a licensed professional with a current Pesticide Applicator’s License in the state the work is being performed. B. Contractor shall provide quality, size, genus, species and variety of plants indicated on the plans, complying with applicable requirements of ANLA and AJCHN. All plants shall be nursery grown, not collected from natural vegetated areas. C. Do not make substitutions without written approval. If specified landscape material is not available, obtain approval for substitution from the Owner or Owner’s Representative. D. Where formal planting arrangements are shown, select stock with uniform height and spread, and label with numbers to assure symmetry in planting. F. The Owner’s Representative reserves the right to inspect all plant materials for compliance with specifications, and to reject unsatisfactory or defective work at any time during progress of work. 1.5 SUBMITTALS A. Qualification data listed in 1.4, A herein. B. At least three (3) shrubs of each variety and all trees shall be tagged with a waterproof tag bearing legible designation of botanical and common names, and all other standard products, labels and nursery certificates substantiating that plants comply with specified requirements set by ANLA were grown within USDA hardiness zones specified. All documentation shall be submitted to the Owner’s Representative. B. Certifications and/or labels of proposed plant materials or substitutions, listing common and scientific names of each. 1.6 PRODUCT DELIVERY, STORAGE AND HANDLING Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 3 of 14 A. Contractor shall deliver packaged materials in containers with identifying labels indicating product data and manufacturer. Protect materials from damage during delivery and while stored on site. B. Plant material delivered by truck requiring storage on site shall be properly wrapped and covered during delivery to prevent drying of branches, leaves or buds. Plant root balls shall be firmly bound, unbroken and reasonably moist to indicate watering prior to delivery and during storage. Furthermore, Contractor shall protect bark, branches, and root systems from sunscald, drying, whipping, and other handling and tying damage during delivery. Contractor shall keep plants moist, fresh, and protected against exposure to sun, wind, and freezing temperatures whether in the receiving yard, in transit, while being handled, or at the job site awaiting planting. C. Contractor shall deliver trees, shrubs and groundcover after preparations for planting have been completed and plant immediately. Contractor shall be present at the time of delivery of all plants to the site. Contractor shall remove all tree trunk wrapping at delivery and inspect tree trunks for damage. All plant material shall be handled by the root ball or container and not by the trunk or branches. D. Plants which have been damaged or have deteriorated in transit or storage will be rejected. Trunks showing fresh scars and damage in delivery and handling operations will be rejected. Plant material from cold storage will be rejected. D. If planting is delayed more than six (6) hours after delivery to the site, set plants vertically in their natural growing orientation in shade, protect from weather, dust and mechanical damage, and keep roots moist. Set balled stock on ground or heeled into the ground and cover ball with soil or mulch. Water root systems as often as necessary to keep root systems moist during storage and planting. Storage on site for more than two (2) weeks shall not be allowed without permission from the Landscape Architect and Owner’s Representative. Plant damage due to Contractor’s planting delay shall be the responsibility of the Contractor. E. Planting Dates: Contractor shall submit in writing a proposed planting installation schedule. Contractor shall schedule dates for each type of landscape work during normal seasons for such work. Once the schedule is accepted, dates shall be revised and submitted in writing if there are reasons of delay. Planting Deciduous material: Spring March 1 to June 15 Fall September 1 to December 15 Evergreen material: Spring March 15 to May 30 Fall August 15 to November 15 Perennials and Groundcovers: Spring April 15 to June 1 Fall September 15 to November 15 F. Contractor shall correlate planting schedule with specified maintenance periods in writing to the Landscape Architect in order to ensure maintenance coverage to date of acceptance. G. Coordination with Lawns and other finished surfaces and structures: Plant trees, Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 4 of 14 shrubs, and groundcover after final grades are established and prior to planting of lawns, unless otherwise acceptable to Owner’s Representative. If planting of trees and shrubs occurs after lawn work, protect lawn areas and promptly repair damage to lawns resulting from planting operations. Planting operations shall not occur until adjacent sidewalks, roads, curbs and any other building elements have been completed. Contractor shall coordinate work with other disciplines including work on adjacent building. If scaffolding, lifts or other mechanical equipment is in the way or if adjacent building work is incomplete, the Contractor shall immediately notify the Owner’s Representative and the Landscape Architect. H. Any debris that falls on paved or other hardscape areas shall be removed and paved surfaces cleaned by the Contractor. 1.7 SPECIAL CONDITIONS A. Should discrepancies exist between plant quantities shown in the Plant List and on the Plan, quantities shown on the Plan shall govern. Contractor shall then install all plants as shown on the plan at no additional cost to the owner. 1.8 PLANT REPLACEMENT GUARANTEE A. Contractor shall provide a guarantee covering all new plants from death or unhealthy conditions for a minimum of one (1) year including one continuous growing season. B. Guarantee period shall commence on the date identified as the Provisional Acceptance of project or phase of project as outlined in Section 3.15, herein. C. Contractor shall guarantee that all plantings conform to requirements of contract documents and that all plants except transplant materials are healthy and will remain so for the guarantee period outlined herein. 1.9 MAINTENANCE A. Maintenance of all planting shall occur from time of planting through Final Acceptance. Refer to Section 3.15 for definition of Final Acceptance. B. Maintenance shall consist of keeping trees, shrub and groundcover plantings in healthy growing condition. Maintenance performed by the Contractor shall include: 1. Watering all plantings to ensure survival and healthy growth 2. Weeding, raking and removal of weeds, weed roots and old mulch from plant beds and individual tree plantings 3. Light re-mulching of planting beds and individual plants 4. Tightening guy webbing and repairing of stakes 5. Removal of trash within planting areas 6. Pruning dead, dying or errant branches 7. Replacement of dead material Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 5 of 14 8. Resetting plants to proper grades, or to upright position C. Chemicals, pesticides, fungicides, insecticides or herbicides within planted areas shall be applied by personnel licensed to do so in the State where the project is located and only after obtaining written permission from the Owner’s Representative. Contractor shall indicate the materials and dispensing methods, dates, time and weather conditions under which procedures will occur and traffic control including pedestrian protection. PART 2 - PRODUCTS 2.1 LOAM COMPOST MIX A. For Loam Compost Mix, refer to Section 32 93 00, “Part 2 – Products”. 2.2 ANTIDESSICANT A. Emulsion which permits transpiration while retarding excessive loss of moisture from plants. Deliver in manufacturer's fully identified containers and mix according to manufacturer's direction. Use "Wiltproof" or approved equivalent. 2.3 TREE, SHRUB AND GROUNDCOVER FERTILIZER A. For complete fertilizer per specification Section 32 93 00, “Part 2-Products”. 2.4 STAKE AND GUYING MATERIALS A. Guy web: Shall be a low abrasion woven fiber webbing with a break strength of 900 pounds or better. The width of the webbing shall be no less than 5/8 inch nor greater than ¾ inch. The length shall be sufficient enough to be attached to the tree trunk and stake. Cable encased in hose shall not be used. B. Stakes: Shall be from a hardwood source, free of knots, insects and fungi. Stakes shall be of uniform size and shape and shall be a minimum of two inches (2”) square. Stakes shall be pointed with a taper of no less than four inches (4”). C. The above ground stake height shall be eight inches (8”) above the point of attachment. The type of stakes shall be uniform throughout the job. 2.5 TREE PAINT/TREE WOUND DRESSING A. Tree paint or tree would dressing of any type shall not be used on the tree wounds. Allow wound to heal and weather naturally, after trace cutting ragged or loose damaged bark back to live cambium. 2.6 TREE WRAP A. Tree wrap may be used to protect tree trunks from damage during digging at the nursery, transport to the site or during planting operations, but the use of tree wrap of Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 6 of 14 any type shall not be allowed on tree trunks and branches after trees are planted. 2.7 MULCH A. Mulch shall be shredded hardwood mulch shall be derived from hardwood aged to a minimum of six months and no more than eighteen months. The bark shall be shredded so that the resulting pieces are no more than ¼ inch thick and no longer than three inches (3”). The mulch shall be free of stringy material and shall not contain an excess of fine particles. The mulch shall be brown in color, free of dye, leaves, twigs, sod, weeds, shavings and other foreign materials which are injurious to health plant growth. Mulch shall not have an excess of fine particles, overly composted or soggy compost material. Mulch shall not have an unpleasant odor nor have any evidence of fungus growth. B. Straw mulch shall be weed free, organic straw derived from harvested rice, oat, alfalfa, wheat or other cereal crops. Straw mulch made from meadow hay will not be accepted. 2.8 JUTE MESH A. For Jute Mesh, refer to Section 32 93 00, “Part 2 – Products”. 2.9 WATER A. Clean, fresh potable water free of salt and other impurities injurious to vegetation. 2.10 PLANT MATERIALS A. Contractor shall secure plant material indicated on the Plans. Any plant substitutions shall be immediately brought to the attention of the Landscape Architect after all sourcing efforts have been exhausted. All plant material shall comply with the state and federal laws with respect to importing clean out of state nursery stock inspected for harmful insects, plant diseases and fungal infestations. B. The Contractor shall notify the Landscape Architect by written request at least one (1) month prior to the expected planting date to schedule the tree tagging. The Landscape Architect’s time and expenses spent to locate plant material shall be paid for by the Contractor only if the Landscape Architect is sent to a site where satisfactory plant materials are not located and to nurseries not located within 100 miles of the project site. At the approval of the Landscape Architect, the contractor may send photos of plant material to the Landscape Architect if tagging is prohibitive. Photos shall indicate typical size, form and species specified. C. Each tree shall be labeled with securely attached, waterproof label bearing legible designation of botanical and common name according to AJCHN. Tagged plants shall bear information regarding project name. No plant material tagged by the Landscape Architect shall be delivered to the project site without these tags. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 7 of 14 D. The Landscape Architect’s tagging exercise shall not impair the right of inspection and rejection upon delivery at the site or during the progress of work. Contractor shall be responsible for the replacement of materials rejected by the Landscape Architect at the site. E. Only plant stock obtained from and grown between latitudes 40-49 degrees north and USDA hardiness Zones 1 through 6 will be accepted. F. Plants shall be in accordance with ANLA as a minimum requirement for measuring height, caliper and root ball for acceptance. Plants shall be typical of their species or variety, have a normal habit of growth, and meet the size and form requirements indicated by the Landscape Architect. The trunk of each tree shall be a single trunk growing from a single intact crown of roots. Trees indicated as “multi-stemmed” in the Plant Lists shall have three (3) stems, typical. Lateral branching of deciduous trees located near sidewalks or roadways shall begin no less than seven (7) feet height. G. Tree species designated as “Fall Digging Hazard”, such as some species of Oak, Birch, Beech, Dogwood, Redbud and Maple among other species shall not be approved for planting installation in the fall season unless approved at the discretion of the Landscape Architect and provided the Contractor obtains written certification from the nursery that these trees have been dug in the previous spring season. If fall digging hazard plants have not been previously dug, then they shall be planted during the following spring season, regardless of other project schedules. Plant substitutions shall not be made on the sole reason that the plants are a fall digging hazard. I. Replacement plants larger in size than existing may be used if approved by the Landscape Architect provided use of larger plants does not increase Contract price. J. If use of larger plants is approved, increased root ball shall be in proportion to size of plant based on ANLA minimum requirements. In no instance shall root balls be cut or otherwise reduced in size to fit limited planting areas. K. Planting stock with root balls cracked or broken before or during planting operation will be cause for rejection by the Landscape Architect or Owner’s Representative. L. Landscape plugs – Plants noted as “Plugs” on the plans shall meet the following criteria: 1. Plugs shall be 5” deep by 2” wide minimum 2. Deep root establishment 3. Healthy, vigorous vegetative growth PART 3 - EXECUTION 3.1 GENERAL A. The Contractor shall conduct a pre-landscape construction conference at the project site with the Landscape Architect and the Owner’s Representative prior to beginning landscape work to review landscape construction procedures, site conditions and Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 8 of 14 submittal requirements for landscape work. This includes reviewing the requirements for the planting soil mix. 3.2 PLANTING A. Layout: Determine location of underground utilities/drainage and layout plants so as to avoid possible damage to such structures. Determine locations of security cameras and layout plants so as to avoid blocking camera views. Plant pits and bed locations as shown graphically and/or verbally on plans, shall be staked on ground by Contractor and approved by the Landscape Architect prior to excavation. Should discrepancies exist between plant quantities in Planting Schedule and Planting Plan, quantities shown on the Planting Plan shall govern. Adjustments in locations and planting bed outline shall be made as directed in field by the Landscape Architect. The Landscape Architect reserves the right to determine the exact location of every plant and to change the location of plants to an area of similar conditions. Labor, equipment, and stakes are to be furnished by the Contractor for this purpose. B. Planting Beds: Fill entire planting bed area to depths indicated on the Plans with approved planting soil mix, according to requirements in Section 32 93 00. C. Contractor shall place jute mesh on all planting slopes 3:1 or greater. 1. Apply jute mesh loosely but smoothly to fit the contour of the finished grade, parallel to and in same direction as the flow of water. The up- slope end of the each separate strip or piece of jute mesh shall be buried in a six (6) inch minimum vertical anchor slot of junction slot with the soil tamped firmly against the mesh. Where more than one width of material is required, edges shall overlap a minimum of twelve (12) inches, and the up-slope section of mesh will be on top. Down-hill ends of the jute mesh shall be folded under approximately four (4) inches and stapled in place. Staples will be inserted through the mesh along edges, overlaps, and in the center of all jute mesh strips at intervals not greater than three (3) feet. All anchor slots, junction slots, check slots, and terminal folds shall have five (5) staples spaced not more than nine (9) inches on center across widths. 2. On shrub banks 3:1 and steeper OR as directed by the Landscape Architect, apply jute after finished grading. Slice “X” openings with sharp tool in mesh and peel back mesh for each plant and plant and mulch as specified. D. Tree Excavation: Planting beds and individual tree pits shall conform to the approved staked locations and outlines. Holes dug for plantings shall in all cases be large enough to include the complete root system of the tree, shrub, and groundcover to be received and also sufficient amounts of approved planting backfill mix around the periphery of the rootball. All sod, weeds, roots, cobbles, and stones and other objectionable materials excavated from the plant holes which is unsuitable for backfill shall be removed from the site immediately and legally disposed of. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 9 of 14 E. Plant Hole Size: The minimum plant hole size, unless otherwise specified, shown on the plans or directed by the Landscape Architect shall be as follows: 1. Trees and Shrubs - The planting hole shall be three (3) times the diameter of the rootball in width and no deeper than two inches (2”) less than the distance from the bottom of the rootball to the root collar (i.e. a 12” distance between the bottom of the rootball and the root caller will require a 10” deep hole). Any excavation in excess of that required shall be replaced and compacted to eighty-five percent (85%) of maximum density. 2. Landscape Plugs and Groundcover – Contractor shall outline area for plugs and layout shall be approved by the Landscape Architect. The planting hole may be dug with with auger, trowel, space, dibble or shovel. The hole shall be made in the plant bed prepared meeting the requirements of Section 32 93 00 and the depth for each plug or groundcover shall equal the depth of the root mass. Any excavation in excess of that required shall be replaced and compacted to eighty-five percent (85%) of maximum density. 3. Any rocks or underground obstructions shall be removed to a depth necessary for planting as specified, unless alternate locations for the planting are approved by the Owner’s Representative. If removal of obstructions result in a deeper hole than specified for planting, backfill material shall be added and compacted to eighty-five percent (85%) of maximum density to the correct depth. 4. Scarify soils on sides of pit to facilitate integration of planting backfill mix with existing soil for better root penetration as plants grow. F. Planting Backfill Mix: Planting Backfill Mix shall be existing suitable soil excavated from the planting hole and Loam/Compost Mix as defined in Section 32 93 00 to create “Planting Backfill Mix” for planting pits. Planting backfill mix shall be at least fifty percent (50%) loam/compost mix. 3.3 SETTING PLANTS A. Plants shall be handled in such a manner that the soil of the rootball will not be loosened from the roots. Carefully place plant into the prepared hole. Trees shall be set so that the root flare or collar is 2” above finished grade. Contractor shall remove all burlap and wire basket in its entirety from the root ball once the tree is set plumb. Fill in around the rootball to one half (1/2) the depth of the hole with planting backfill mix. Thoroughly tamp the backfill mix to eighty-five percent (85%) of maximum dry density, removing air pockets. 1. Contractor shall use leveling bed of compacted planting backfill mix to set ball if top of rootball needs to be raised to conform to proposed finished grade. 2. Contractor shall judge planting height to allow for settling, to meet grade after settlement. B. Fill remaining area of planting hole with water. Cut broken or frayed roots cleanly. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 10 of 14 C. Fill remaining area of hole with planting backfill mix and thoroughly tamp to eighty- five percent (85%) of maximum dry density. Form a saucer around the edge of the backfill hole by constructing a berm. The finish height of the compacted berm shall be three inches (3”). No excess soil shall be allowed to remain within the plant saucer. Fill saucer with water. 1. Do not over-compact planting areas. The Landscape Architect reserves the right to reject over-compacted soil installation and may request removal and replacement of soil and plants. 3.4 PRUNING OF NEW PLANT MATERIAL A. Any plants with major damage to root ball, trunk, branches or central leader shall be replaced as directed by the Landscape Architect at no additional cost to the Owner. Trees which have had their leaders cut or abrasion of bark or so damaged that cutting is necessary, will not be accepted. There shall be no abrasion of bark, nor fresh cuts of limbs over one (1) inch. B. Contractor shall prune only dead wood, damaged branches, crossed branches, and suckering shoots, in accordance with TCIA standards, minimizing amount of live growth removed and preserving natural character of plant. Shape trees only if additional direction is given by the Landscape Architect, maintaining natural form. C. Perform all pruning with sharp tools, with cuts flush and clean. D. Contractor shall not apply tree wound dressing of any type. 3.5 WATERING A. Contractor shall water all plants immediately following planting to thoroughly moisten the rootball. B. Contractor shall soak the root balls thoroughly again within a twenty-four (24) hour period after the initial planting. Contractor shall inspect planting areas to confirm that all planting areas are draining properly. If surface water or excessively saturated plant pit soils exist, Contractor shall immediately notify the Landscape Architect. C. Contractor shall inspect the plants weekly and additional watering shall be done to provide adequate moisture for healthy plant establishment and growth. Contractor shall be responsible for watering as required through Final Acceptance. 3.6 FERTILIZING A. During backfill operations, place fertilizer in upper foot of back fill around perimeters. Application rate shall be as follows unless otherwise determined by manufacturer’s instructions and as recommended by soil test results. Type of Plant Rate Deciduous Shade Tree One packet for each inch of caliper or four (4) packets, minimum for 3 ½-4inch caliper tree Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 11 of 14 Shrub One packet for every 12 inches of height 3.7 MULCHING PLANTS A. Application of mulch should only occur after planting operations have been completed and initial watering has taken place. B. Prior to the placement of mulch, the contractor shall apply a pre-emergent weed control within the entire area to be mulched. Pre-emergent weed control shall be applied by a licensed commercial applicator at a rate in accordance with the manufacturer’s installation. C. Contractor shall mulch tree, shrub and groundcover beds within one day of planting at the locations and depths indicated on the plans. D. Trees - Mulch shall be spread to a depth of one (1) inch within a 4” diameter of the tree trunk and 2” deep around remaining bed. In no instance shall mulch be placed to cover root flare of any tree plantings. Mulch shall be pulled back from root flare to create a saucer. E. Shrubs - Mulch shall be applied a minimum of tw0 (2) inches in depth for all shrub planting beds, as indicated graphically or as noted on the drawings. Mulch shall be pulled back from shrub or groundcover centers as necessary to create a saucer and provide air movement at the base of the plant. D. Where mulch abuts seeded lawn areas or other finish grade materials, edge of planting bed shall be cut smooth and cleanly. Mulch shall be placed carefully so as not to spill into adjacent areas. Any excess or spilled mulch shall be promptly removed from the project area. F. Contractor shall mulch plug planting areas with a maximum depth of one (1) inch of straw mulch. 3.8 GUYING AND STAKING A. Immediately after planting, stake trees as indicated on detail drawing or as directed by Owner or Owner’s Representative. B. Place stakes outside of the planting pit exercising care not to damage the soil berm. C. Guy all trees with a caliper of two inch (2”) or greater and all evergreen trees greater than four feet (4’). Guy webbing shall be attached at a point no higher than one half (1/2) the height of the tree or lower than one-third (1/3) the height of the tree. D. Guy trees to each stake near top of stake and intertwine webbing at tree trunk. The guy webbing shall lay flat against the trunk. Draw guy webbing tight enough to remove slack but shall not cause deflation or strain to the plant. 3.9 TRUNK WRAPPING Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 12 of 14 A. Contractor shall remove all trunk wrap and trunk protection devices prior to staking and guying operations. 3.10 ANTIDESSICANT SPRAYING A. Contractor shall spray antidessicant as directed by the manufacturer’s recommendation. 3.11 TAGS AND LABELS A. Contractor shall leave all tree tag and label seals unbroken and visible on plant material until Provisional Acceptance. Remove all seals immediately after Provisional Acceptance has been granted. 3.12 MAINTENANCE A. Contractor is responsible for protection and maintenance of all work prior to Final Acceptance of the project or phase of project. No plants will be accepted unless they show a healthy and satisfactory condition conforming to requirements of contract documents. B. Maintenance work for all plantings shall be as listed in Section 1.9 herein. 3.13 CLEAN UP AND PROTECTION A. Contractor shall protect work from damage due to landscape operations, operations by other contractors and trades, and trespassers. Contractor shall maintain protection during installation and maintenance periods. Contractor shall treat, repair or replace damaged work as directed by the Landscape Architect and/or Owner’s Representative. B. Contractor shall remove excess planting soil, waste material, and excess subsoil, unsuitable soil, wrappings, binding material, containers, trash and debris and legally dispose of material off site. C. Contractor shall take care not to disturb any adjacent site improvements. If, in the opinion of the Landscape Architect or Owner’s Representative, any damage to adjacent materials occurs as a result of planting operations, the Contractor shall repair damage to site or structures to restore them to their original condition at no cost to the Owner. 3.14 PLANT REPLACEMENT GUARANTEE A. Refer to Section 1.8 herein for Guarantee definition. B. Replacements: Plants of same size and species as specified in the Plans, planted during the next growing season, with a new guarantee and maintenance service commencing on date of replacement. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 13 of 14 C. At any time within period of guarantee, the Landscape Architect may direct the Contractor to replace any plantings which for any reason, other than vandalism, has died or is in a dying condition, or which has failed to flourish in such a manner or to such a degree that its usefulness or appearance has been impaired. D. "Vandalism", is intended to mean any acts, whether intentional or accidental, by other persons occurring following final acceptance, which clearly result in breakage or other damage to individual plants or plant beds, and which may reasonable be considered to be beyond Contractor's reasonable control, as determined by the Owner's representative. 3.15 ACCEPTANCE OF TREES, SHRUBS AND GROUNDCOVER A. PROVISIONAL APPROVAL 1. Provisional approval shall be considered after planting is completed for the project or phase of a project. In order for provisional approval to be granted, the Contractor shall request in writing to the Owner’s Representative that he/she is ready to have the planting reviewed. The following requirements shall be met: 2. Planting per the quantities and locations on the contract documents shall be installed and mulched. 3. A clear line defines a planting bed vs. lawn or other surface. 4. The following examples of delays in provisional approval of planting: a. Improper grading b. Incorrect depth of planting soil mix c. Tree root flares are below finished grade d. Trees planted too deep e. Mulch is piled around root flare f. Missing plants, incorrect locations, improper planting techniques g. Improperly pruned material h. Plants that in the opinion of the Landscape Architect are not showing vigorous and thriving growing conditions. B. FINAL ACCEPTANCE 1. In order for final acceptance to be granted, the Contractor shall request in writing to the Owner’s Representative at the end of the one year plant guarantee and the following requirements shall be met. 2. Contractor shall meet obligations of the Plant Replacement Guarantee and Maintenance as defined in Section 1.8 and Section 1.9 herein prior to Final Acceptance. 3. Inspection will be made by the Owner’s Representative and the Landscape Architect. Planting not demonstrating satisfactory growth, except if damaged by vandalism, as determined, by the Landscape Architect shall be replaced and maintained meeting all requirements as specified herein. Plant Replacement Guarantee shall extend one year for new replacements. 3. After all necessary corrective work has been completed, the Landscape Architect will submit in writing recommending to the Owner's Representative Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 32 93 10 TREES, SHRUBS AND GROUNDCOVERS 14 of 14 that Final Acceptance shall be granted with documentation information indicating which replacement plants remain under guarantee and when guarantee period ends. 4. Decision of Owner’s Representative as to the necessity to replace plants or repair any defects in workmanship, or cause of any destruction or loss, impairment or failure to flourish, shall be conclusive and binding upon Contractor. Replacements shall be the same as specified. All replacements shall be planted as specified herein at Contractor's expense. 5. The Owner shall not maintain plantings until after Final Acceptance of the project or phase of project. Contractor shall not have any claim that materials have failed to flourish as a result of Owner's maintenance operations, or lack of maintenance, and shall abide by terms stated herein for guarantee and replacement of plant materials. END OF SECTION 32 93 10