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HomeMy WebLinkAboutSPEC_329300_LANDSCAPING_08272021Project # 21012.00 VANCE THOMPSON VISION BOZEMAN, MT SITE PLAN SUBMISSION LANDSCAPING 32 92 00 - 1 SECTION 32 93 00 -LANDSCAPING PART I-GENERAL 1.1 RELATED DOCUMENTS A. Drawings and provisions of Contract, including General Conditions and other Division 1 Specification sections, apply to work of this section. 1.2 SUMMARY A. This Section includes the following: 1. Furnishing all plants, labor, equipment, and performing all planting of trees, shrubs and groundcovers. B. Installation of lawns is specified in Section 32 92 00– Turf and Grasses, of this Specification. 1.3 QUALITY ASSURANCE A. Qualification of Workmen: Provide at least one person who shall be present at all times during execution of this portion of the work and who shall be thoroughly familiar with the type of materials being installed, the best methods for their installation, and who shall direct all work performed under this section. B. Coordination of Work: All work of this section, and the installation of all irrigation systems and all lawns shall be performed by one Contractor. 1.4 STANDARDS A. All plants and planting materials shall meet or exceed the Specifications of federal, state, and county laws requiring inspection for plant disease and insect control. Quality and size shall conform with the current edition of American Standards for Nursery Stock, ANSI Z60.I, as adopted by the American Association of Nurserymen, and with the schedule shown on the plans. B. All plants shall be true to name and one of each bundle or lot shall be tagged with the name and size of the plants in accordance with the standards of practice of the American Association of Nurserymen. In all cases, botanical names shall take precedence over common names. PART 2 -MATERIALS 2.1 PLANT MATERIALS A. General: Plant materials shall mean trees, shrubs, groundcovers and plants of all descriptions, required to be furnished for the project, in accordance with the plans and specifications. All plant material must be true to name, which shall conform to Standardized Plant Names of the American Project # 21012.00 VANCE THOMPSON VISION BOZEMAN, MT SITE PLAN SUBMISSION LANDSCAPING 32 92 00 - 2 Joint Committee on Horticultural Nomenclature, and shall be legibly tagged with the name and size of the material according to the general nursery practice as recommended by the American Association of Nurserymen. B. Condition: All plants shall be first class representatives of their normal species or varieties. Unless otherwise specified, plants shall have average or normally developed branch systems and vigorous root systems. Plants shall be free from scale, disfiguring knots, sun scald injuries, abrasions of the bark, or other objectionable blemishes. Weak plants will not be accepted. Plants must show appearance of normal health and vigor in strict accordance with these Specifications. All stock shall be nursery grown. C. Disease: All plant material shall comply with state and federal laws with respect to inspection for plant disease and infection. Any inspection certificates required by law shall accompany each shipment, invoice, or order of stock. D. Size Variance: When planted in masses, plants shall be subject to tests that will eliminate more than twenty (20%) percent variance from uniform size and that will ensure at least fifty (50%) percent conformity to larger rather than smaller Sizes. E. Inspection: All plant material shall be subject to approval and inspection at any place, before, during and/or after planting. Any plant material not approved by the Owner’s Representative shall be immediately removed from the site. No plant material shall be accepted with loose or broken balls. 2.2 OTHER MATERIALS A. Guying Materials: Stakes shall be 2 inches (5 cm) metal t-post stakes, minimum length 3 feet (.9m), with the exposed portion of the stake painted dark green or brown. Guys shall be canvas or cloth straps. Staking is mandatory, see details. B. Mulch: Mulch types per plans. Submit samples for approval prior to installation. C. Weed Barrier Fabric: Weed barrier fabric shall be Typar Style 3201, as manufactured by Reemay Company or approved equal. Installed under all mulch areas unless noted otherwise in plans. D. Bed Edging: All edging shall be 3/16 inch x 4 inches steel edging, black finish, as manufactured by Sure-loc Corporation, 310 E 64th Street, Holland, MI 49423. Telephone 1-800-787-3562. Or approved equal. 1. Inspection: Prior to all work of this section, carefully inspect installation work of other trades and, verify that all such work is complete to the point that installation of edging may properly commence. 2. Discrepancies: In the event of discrepancy, immediately notify the Owner's Representative. Do not proceed with installation in areas of discrepancy until all such discrepancies have been resolved. 3. Installation: Install all edging where indicated on the Plans, anchoring all edging firmly in place and maintaining smooth curves and straight lines in accordance with manufacturer’s recommended installation procedures. Place line stakes approximately 3.2 feet o.c. (96 cm o.c.), and plumb. Place splicer stakes in a manner so that smooth lines are maintained at all times. Kinked or waving edging, or edging not uniformly graded, shall be rejected, and replaced at no additional cost to the Owner. 2.3 PLANTING MIXTURE Project # 21012.00 VANCE THOMPSON VISION BOZEMAN, MT SITE PLAN SUBMISSION LANDSCAPING 32 92 00 - 3 A. Topsoil: The topsoil shall be loose, friable, and shall contain an ordinary amount of humus. It shall contain no lumps of soil, rocks larger than 1 inch (2.54 cm), or sticks, roots, and other debris. It shall be sufficiently fertile to sustain normal healthy plant growth and shall not have a pH value higher than 7.0 or lower than 5.5. The topsoil shall be delivered in an unfrozen and non-muddy condition and must meet the approval of the Owner’s Representative. B. Preparation: Native soil shall be used as fill around plants. PART 3 -EXECUTION 3.1 SURFACE CONDITIONS A. Inspection: Prior to all work of this section, carefully inspect the installed work of all other trades and verify that all such work is complete to the point where this installation may properly commence. Verify that planting may be completed in accordance with the original design and the referenced standards. B. Discrepancies: In the event of discrepancy, immediately notify the Owner’s Representative. Do not proceed with installation in areas of discrepancy until all such discrepancies have been fully resolved. 3.2 PLANTING TREES AND SHRUBS A. General: Plant nursery stock immediately upon delivery to the site and approval by the Owner’s Representative except that, if this is not feasible, heal-in all balled material with damp soil and protect from sun and wind. Regularly water all nursery stock in containers or healed in, and place them in a cool area protected from sun and drying winds. B. Excavation of Plant Holes: 1. Excavation shall be accomplished in such a manner as to provide a 1/2 inch (13 mm) drop from all pavements to the finished surface of beds. Excavate shrub pits to provide not less than 6 inches (15.2 cm) of planting mixture beyond the side of the container and at least 6 Inches (15.2 cm) deeper than the container, but in no case shall depth be less than 16 inches (40.6 cm) below finished grade. 2. Tree pits shall have gradually sloping sides and horizontal bottoms. Depth of pit below finish grade shall be at least 6 inches (15.2 cm) greater than the depth of the ball. In no case shall depth of tree pits be less than 24 inches (61 cm) below finished grade. Diameter of pits for all trees shall be at least three times greater than the maximum diameter of the tree ball or root system, see details. C. Planting Operation: 1. Trees and shrubs shall be supplied in sizes shown on the Landscaping Plan with all plants "Balled and Burlapped" or containerized. During planting operations, the nursery stock shall not be exposed to the sun, drying winds, or winter freezing. Roots of evergreens shall not be exposed to the air. 2. Planting may be executed at any time between March 1 and September 30, provided the ground is not frozen and water is available. The Contractor shall take all precautions he Project # 21012.00 VANCE THOMPSON VISION BOZEMAN, MT SITE PLAN SUBMISSION LANDSCAPING 32 92 00 - 4 deems necessary against desiccation, freezing, or other potential damage to plant materials due to weather conditions existing or that may be expected at the time of planting and during the maintenance and guarantee periods. 3. The soil in the bottom of the hole, which has been excavated to the prescribed requirements, shall be loosened to a depth of 3 inches (7.6 cm) and mixed with an equal amount of topsoil. A mound of soil shall be formed in the center of the hole to support the ball of the plant. The plant shall be placed on the mound of soil and held in a vertical position. Handle all "Balled and Burlapped" shrubs and trees by the earth ball and not by the top, exercising care not to drop or loosen the ball. After setting the shrub or tree at proper depth, untie or cut rope at trunk of plant and loosen burlap carefully without disturbing the earth ball. 4. Remove all containers and wire baskets from top 2/3 of plant root ball in a careful manner so that the root ball is not damaged. 5. The plants shall be so set, by adjusting the elevation of the mound, that after settlement the plant will stand at approximately the same depth it stood in the nursery or field, see details. 6. The plant hole shall be backfilled with native soil placed in layers around the ball. Each layer shall be carefully tamped in place in a manner to avoid injury to the ball or disturbing the position of the plant. When approximately two-thirds of the plant hole has been backfilled, the hole shall be filled with water and the soil allowed to settle around the roots. Balled and burlapped plants shall have the burlap cut away or folded back from the top of the ball before applying the water. After the water has been absorbed, the plant hole shall be filled with native soil and tamped lightly to grade. Any settlement shall be brought to grade with topsoil. 7. In the case of planting in the open on hot days, shorten the time between planting and watering. 3.3 STAKING TREES A. All trees must be guyed with three metal t-post stakes driven into the ground outside the saucer. The stakes shall be equally spaced. The tree will be secured to the stakes by canvas or cloth straps around the first lateral branch. The straps should have a maximum of 1/2 inch (13 mm) slack. Do not have taut. Remove after one year, at time of final inspection, provided that trees are in acceptable free-standing condition. Staking is mandatory. 3.4 PRUNING A. The brushed or broken parts of large or fleshly roots shall be cut off smooth before planting. Evergreen plants shall not be pruned except to remove dead or broken branches. Deciduous plants shall be pruned using proper pruning practices as approved by a certified arborist. B. Trees and shrubs that have been so badly pruned as to spoil their form and usefulness shall be removed and replaced. 3.5 INSPECTION A. Scheduling: In addition to the normal progress inspections, schedule and conduct the following formal inspections, giving the Owner’s Representative at least 48 hours prior notice of readiness for inspection. 1. Inspection of plants in containers prior to planting. Project # 21012.00 VANCE THOMPSON VISION BOZEMAN, MT SITE PLAN SUBMISSION LANDSCAPING 32 92 00 - 5 2. Inspection of plant locations, to verify compliance with the plans. 3. Substantial completion inspection after completion of planting. Schedule the substantial completion inspection sufficiently in advance, and in cooperation with the Owner’s Representative so that final inspection may be conducted within 24 hours after completion of planting. 4. Final inspection at the end of the maintenance period, provided that all previous deficiencies have been corrected. 3.6 MAINTENANCE A. General: Maintain all planting, starting with the delivery or collection of plant materials and continuing until completion of job. Maintenance shall include all watering, weeding, cultivating, spraying, and pruning necessary to keep the plant materials in a healthy growing condition and to keep the planted areas neat and attractive throughout the maintenance period. Provide all equipment and means for proper application of water. Protect all planted areas against damage, including erosion and trespassing, by providing and maintaining prior safeguards. B. Settlement: If any tree, shrub, or plant bed settles more than 1 inch (2.54 cm) below the established grade, the plant shall be raised to the proper level and not merely covered with additional mulch. C. Replacements: At the end of the maintenance period, all plant material shall be in a healthy growing condition. During the maintenance period, should the appearance of any plant indicate weakness and probability of dying, immediately replace the plant with a new and healthy plant of the same type and size without additional cost to the Owner. D. Extension: Continue the maintenance period at no additional cost to the Owner until all previously noted deficiencies have been corrected at which time the final inspection shall be made. When final inspection is made and deficiencies are noted, the maintenance period will continue until such deficiencies are corrected at no additional cost to the Owner. 3.7 GUARANTEE A. Time Frame: Guarantee all plant materials to remain healthy and in a vigorous growing condition for a period of 1 year following substantial completion. The final inspection shall be one year from the date of substantial completion. B. Replacements: All replacements shall be the same species as originally installed. END OF SECTION 32 93 00