County-Specs-02931-Landscaping.pdf

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Attached to
Suffolk Drive Drainage Improvements
Solicitation number
IFB #27023
Issued by
Greenville County, South Carolina

About this file

This is a Landscaping Standard Specifications document (Section 02931) issued by Greenville County Public Works in South Carolina, applicable to the Suffolk Drive Drainage Improvements project located in the Richmond Hills subdivision in Greenville. The specifications establish comprehensive requirements for landscaping work including site preparation, planting, sodding, seeding, and interim maintenance of all landscape materials until acceptance. The scope encompasses preparation of planting areas with topsoil and soil amendments, furnishing and installation of plants and sod, fine grading and seeding of lawns, and a one-year guaranty period for all plant materials and seeded/sodded areas. The project requires contractor inspections at multiple stages: pre-planting inspection of prepared beds and materials, punch list inspection upon substantial completion, acceptance inspection upon work completion, and final approval inspection at the end of the guaranty period. The contractor must notify the County project manager of any unfavorable conditions affecting plant health, particularly subsurface drainage issues, and is responsible for protective devices, pavement cleaning, and proper maintenance of the site.

The specifications detail extensive technical requirements for materials including topsoil (minimum 4 inches depth, free of contaminants), soil conditioning agents, fertilizers (16-4-8 slow release at 30 lbs./1000 sq.ft. or County-approved equivalent), and lime (50 lbs./1000 sq.ft. to achieve pH of 6.5). Seed materials must be certified and fresh with specific germination and purity standards for Kentucky 31 Fescue, Annual Rye, and Bermuda grass varieties. The contractor bears full responsibility for subsurface drainage investigations through percolation testing; failure to conduct proper testing results in contractor liability for water-damage replacements, while documented proper testing relieves the contractor of such responsibility. All plant materials must remain alive, healthy, and exhibit vigorous normal growth throughout the one-year guaranty period, with replacements made at no cost to the County during favorable weather. The contractor must provide written maintenance procedures to property owners and conduct periodic inspections during the guaranty period, with authority to void the guaranty if maintenance is inadequate.

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LANDSCAPING 02931-1

GREENVILLE COUNTY

PUBLIC WORKS

STANDARD SPECIFICATIONS

SECTION 02931

LANDSCAPING

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LANDSCAPING

SECTION 02931

RELATED DOCUMENTS: Attention is directed to related sections of the Specifications, as they pertain to the guidelines, materials, and methods described in this section. Also, the General Provisions and Special Provisions of the Contract shall apply to all Sections of the Work.

1.0 SCOPE:

a. General Requirements: Provide the work of this section as indicated and specified as follows:

1. Preparation of planting areas, including topsoil and soil amendments for beds.

2. Furnishing and installation of plants and related materials.

3. Furnishing and installation of sod and related materials.

4. Fine grading and seeding of lawns.

5. Interim maintenance of all work until acceptance.

6. Guaranty and replacement of all plant materials.

2.0 INSPECTIONS AND REPORTS:

a. Inspection Of Plant Material - all planting beds shall be prepared and all plant material shall be on site for an inspection by the County project manager prior to planting.

b. Punch list inspection - upon substantial completion of work.

c. Inspection for Acceptance of Work - upon completion of work.

d. Inspection for Final Approval - at end of Guaranty Period.

e. Report of Unfavorable Conditions - promptly notify the County project manager of adverse soil drainage conditions or other unfavorable conditions which would affect plant health. See later section concerning Subsurface Drainage Investigations.

3.0 TEMPORARY FACILITIES:

a. Protective Devices: Provide barricades, lanterns, signs, etc., necessary to protect the public from dangerous conditions resulting from work and to protect work from trespass.

b. Pavement Cleaning: Clean pavements at end of working day and before onset of inclement weather to prevent staining by or tracking of materials.

4.0 INSPECTION FOR ACCEPTANCE OF WORK:

a. Punch List Preparation: When work had been substantially completed; except for very minor items, Contractor shall notify the County project manager that work is ready for Punch List Inspections. The County project manager or representative, within a reasonable time, will check the work and prepare a Punch List stating observed deficiencies of work which need correction prior to Acceptance Inspection. The Punch List is for the Contractor's convenience and shall not relieve him of any obligations of the Contract. The County project manager may waive this requirement upon consultation with the Landscape Contractor.

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b. Preparation for Acceptance Inspection(s): Contractor is expected to review Contract

Documents and to inspect work to determine that all requirements have been met prior to Acceptance Inspection(s). All items on the County's punch list shall also have been attended to prior to Acceptance Inspection(s).

c. Acceptance of Work: After Inspection, Contractor will be notified of Acceptance of work in writing by the County provided work offered for acceptance comprises all required work entirely completed, but exclusive of possible future replacement of plants. Final payment will be due at this time.

5.0 GUARANTY, INSTRUCTIONS, INSPECTIONS, AND REPLACEMENTS:

a. Guaranty: All trees, shrubs, and ground covers shall be guaranteed to have acceptable appearance, to be alive and healthy, and to have exhibited vigorous normal growth for one full year from date of acceptance of the work. Seeded and sodded areas shall be guaranteed for 1 full year. All seeded areas shall have a vigorous stand comprising 100% coverage of all seeded areas. ( No bare areas or washout areas).

b. Maintenance Instructions: Contractor shall provide to County two written copies each of adequate and reasonable maintenance procedures to be followed by the property owner(s) during the one year Guaranty Period.

c. Contractor's Inspections of Owner's Maintenance: During guaranty period, Contractor shall make periodic visits to site (especially during times of unusually severe weather conditions) to inspect plants installed and guaranteed by him. If he should determine that conditions such as maintenance which are not directly under his control are not sufficient to sustain plants, he shall promptly file written notice with the County project manager stating his findings and giving recommendations for corrections. If insufficient maintenance or other damaging condition continues, Contractor may request that the County inspect the site and make a determination of the situation.

e. Voiding of Plant Guaranty: If the County project manager concurs with Contractor after inspection, the Contractor may then file written notice with the County that unless proper maintenance or other necessary work has been completed by a reasonable given date, and sustained thereafter, the terms of Plant Guaranty will become null and void for all or stated portions of work.

f. Dead or other Unsatisfactory Plants: Remove promptly upon discovery, and during periodic visits; mark location with stake to facilitate future replacement.

g. Replacements: All replacements required under Guaranty shall be made at no cost to the

County or private property owner during earliest favorable weather and season following original specifications unless directed otherwise by the County project manager. The County project manager shall be notified in writing if and when any replacements are made.

h. Satisfaction of Guaranty: Near end of Guaranty Period, the County project manager or representative shall determine if plants are in satisfactory condition. When all plants are acceptable to the County, the Contractor shall be notified and will be relieved of the responsibility of any further replacements.

6.0 GRADING FOR LAWNS:

a. Fine Grading: Fine grading of all lawn areas is to be performed by the Contractor.

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7.0 SUBSURFACE DRAINAGE INVESTIGATION:

a. Required Tests: Subsurface drains have not been included as part of project, therefore, Contractor shall make such reasonable percolation tests approved by the County project manager as may be necessary to determine if subsurface drainage conditions in landscape areas are so poor as to support moisture conditions potentially fatal to plantings. The following procedure is recommended:

1. Wait at least 24 hours after rain and dig test pit 12 inches square to depth of bottom of plant bed, trench or pit; remove all loose soil (if standing water is visible, notify the County project manger).

2. Quickly fill pit bottom with 6 inches (approximately 3-1/4 gallons) of water.

3. Record length of time from filling until disappearance of water and divide number of minutes by 6 to give average of 1 inch fall.

4. Compare 1 inch fall time with following table:

TIME INTERVAL SOIL CONDITION

0 - 3 Minutes Rapid Absorption 3 - 5 Minutes Medium Absorption 5 - 30 Minutes Slow Absorption 30 - 60 Minutes Semi-Impervious Over 60 Minutes Impervious

b. Impervious or Semi-Impervious Condition: If soil is indicated to be semi-impervious or impervious, or if water is initially found in test pit, notify the County project manager before proceeding further.

c. Contractor Responsibility for Subsurface Water Damage: If Contractor does not make tests at representative locations and file records of results with the County project manager, or if he plants in areas shown to have poor drainage without written release from Owner, he shall be liable for any future guaranteed replacements due to subsurface water damage. If Contractor makes proper tests and files complete records indicating no semi-impervious or worse conditions, he will not be held responsible for future subsurface water damage to work of Contract. The County project manager may supervise testing at any time.

d. Relocation or Omission of Plants: Where subsurface conditions provide inadequate drainage and subsurface drainage system is not to be used as remedy, make reasonable relocation of plants as directed by the County project manager. Drainage conditions necessitating omission of plants shall be covered by Change Order.

e. Authorization of Drains as Extra Work: The County project manager or representative may authorize installation of subsurface drains to alleviate moisture problems at locations determined by the County project manager or representative. Perform work at agreed extra cost; begin work only after receipt of Change Order. Locations, appropriate materials, and construction techniques will be agreed upon prior to issuance of Change Order.

8.0 TOPSOIL:

a. Source of Topsoil: If obtained from off-site locations, use well-drained sites not previously stripped.

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b. Soil Characteristics: Natural, friable, fertile, fine, loamy soil representative of topsoils in job site vicinity which produce heavy growth.

c. Cleanliness: Free of subsoil, objectionable weeds, litter, sods, stiff clay, stones larger than 1 inch diameter, stumps, roots, trash, toxic substances, or any matter harmful to plant growth or a hindrance to installation or maintenance.

d. Moisture Content: Not frozen or muddy when delivered or spread.

e. Soil Depth: Depth of topsoil shall depend on depth required to fine grade site to finish grade, but in no case shall the depth of topsoil be less than 4 inches in all areas shown on the plans to receive topsoil.

f. Clean-Up: Before the placement of any topsoil, all objectionable material shall be removed from the subgrade to a depth of not less than 12 inches.

g. Placement: Areas to receive topsoil (including all planting beds) to be disked and pulverized to a depth of 12-16" before the placement of topsoil.

9.0 SOIL CONDITIONING MATERIALS:

a. Aluminum Sulfate: Unadulterated, in manufacturer's original unopened container labeled with analysis and net weight. Use to acidify soil (lower pH).

b. Limestone: Raw, ground agricultural limestone, containing at least 90 percent calcium carbonate; 90 percent shall pass No. 10 sieve and 50 percent pass No. 50 sieve. Use to decrease acidity of soil (raise pH).

c. Peat: Domestic or imported material consisting of at least 50 percent partially de-composed vegetable matter of natural occurrence, brown in color, clean, low in mineral and woody content, mildly acid, and either granulated or shredded.

10.0 FERTILIZERS AND LIME:

a. Fertilizer: Shall be 16-4-8 slow release fertilizer as manufactured by Pendleton Oil Mill, Pendleton, South Carolina at the rate of 30-lbs./1000-sq.ft. Other blends and manufacturers of fertilizer are acceptable provided they are approved by the County project manager before application. Fertilizer will be delivered mixed as specified, in standard unopened containers showing weight, analysis, and name of manufacturer. Fertilizer to be kept dry at all times to insure retention of effectiveness and free-flowing composition. Bulk delivery and spreading is acceptable when authorized by the County provided the Contractor supplies the County with written affidavit certifying weight and analysis of fertilizer.

b. Lime: Ground dolomitic limestone acceptable as agricultural limestone containing not less then

85% of total carbonates shall be applied at the rate of 50-lbs./1000 SF (not less than 2000 lbs per acre). Lime shall meet requirements of Section 810, SCHD Standard Specification, Edition 1973. Liming operation shall be sufficient to provide a pH of 6.5.

c. Soil Incorporation: In areas to be seeded or sodded, all of required lime (50-lbs./1000-sq.ft.)

and fertilizer (50-lbs./1000-sq.ft.) shall be thoroughly and evenly incorporated with the soil to a minimum depth of 4 inches (4") by disking or other approved methods. In areas inaccessible to power equipment, it shall be incorporated with the soil by use of hand tools.

11.0 PLANT MATERIALS:

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a. Nomenclature: Names of plants required for use as trees, shrubs, vines, groundcovers, etc., conform generally with names accepted in nursery trade, but authority in case of dispute shall be STANDARDIZED PLANT NAMES, Second Edition, American Joint Committee on Horticulture, 1942, J. Horace McFarland Company, Harrisburg, Pennsylvania.

b. Specifications: Except when stated otherwise, specifications refer to standards for nursery stock, published by the American Association of Nurserymen, Washington, D.C. In case of conflict of stated measurements use greater requirement.

c. Abbreviations: Terms abbreviated hereinafter may include:

Balled and Burlapped B&B Division DIV.

Espalier ESP.

Clump CLP.

Container Grown CONT.

d. Substitutions and Alternatives: Plants specified shall be used unless sufficient evidence is submitted to the County project manager indicating plant is unavailable from sources east of Mississippi River and south of Kentucky and Virginia (unless source has been otherwise specified) and upon request of filed Change Order authorizing substitution.

e. Substitution of B&B and Container Plants: Root types may be freely substituted in case of B&B and Cont., all other specifications remaining unchanged.

f. Alternate Material: If alternate has been specified, it may be used only for entire quantity of original material without prior approval of the County project manager.

g. Condition of Plants Supplied: Well-shaped within normal habit of growth; sound, healthy, vigorous, of proper color and free from insects, pests, disease or physical injury.

12.0 SOD MATERIAL:

a. Material Quality: Sod shall be dense, well rooted sod composed of approximately 2" of roots and soil. It shall be free of weeds, debris or other undesirable grasses.

b. Chemical Treatment: Sod shall not be treated with any chemical herbicide or insecticide for a minimum of 7 days prior to cutting and transport to the site.

c. Transport & Handling: Sod must be kept moist for protection and to facilitate handling. Sod shall be rolled in tight rolls or laid on boards or planks and lifted and transported to storage piles or carried to the point of installation without breaking or tearing. No sod shall be dumped from vehicles, it must be loaded and unloaded by hand or by such methods as not to disturb root mat.

d. Storage: Sod shall not remain in storage piles longer than 24 hours and it shall be protected from wind and rain during such storage periods.

13.0 SEED MATERIAL

a. Material Quality: Grass Seed shall be certified, fresh, clean, new crop composed of the following varieties having the indicated quality.

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VARIETY %GERMINATION %PURITY NOXIOUS WEEDS

Kentucky 31 Fescue 90% 98% 0% Annual Rye 90% 98% 0% Bermuda (hulled), Spring 90% 98% 0% Bermuda (unhulled), Fall 90% 98% 0%

b. Standards and Requirements: All seed shall meet the requirements of the Seed Laws of the

State of Georgia and the U.S. Department of Agriculture Rules and Regulations under the Federal Seed Act in effect on the date bids are received.

c. Delivery and Storage: Seed shall be delivered in standard unopened containers with seed quality tag affixed. Seed which has become wet, moldy or damaged in transit or storage will not be acceptable.

d. Rate of Application: Grass areas shall be sown with Bermuda (hulled) at the rate of 3-lbs./1000-sq.ft., Annual Rye at the rate of 2-lbs./1000-sq.ft. and Kentucky 31 Fescue at the rate of 5-lbs./1000-sq.ft.

e. Hydraulic Seeding:

1. Hydroseeding may be substituted for mechanical seeding with the County project manager's approval.

2. Seed Rates:

K-31 Fescue 15 lbs per 1000 SF Common Bermuda 5 lbs per 1000 SF

3. Seed shall be sown using with 500 lbs. per acre approved hydromulch ( i.e., Conwed, Conwed 2000, Weyerhaeuer, etc.).

4. Hydromulch at 2000 lbs. per acre will then be applied in a separate operation.

5. Any material applied to building, lighting fixtures, fencing or paving shall be removed at

Contractor's expense.

6. Note: Soil amendments will be applied mechanically and incorporated into the soil, not applied hydraulically.

14.0. STAKING, GUYING AND WRAPPING MATERIALS:

a. Tree Stakes: Sound, durable lumber with minimum uniform cross-section above point of 2 x 3 inches nominal dimensions, capable of withstanding above ground and underground conditions until Final Acceptance.

b. Guy Stakes: Sound, durable lumber with minimum uniform cross-section above point of 2 x 3 inches nominal dimensions, capable of withstanding above ground and underground conditions until Final Acceptance; or steel rod, minimum of 1/2 inch diameter.

c. Guy Wires: No. 12 gauge, malleable, galvanized iron wire, twisted into double strand, turn buckles optional.

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d. Protective Encasement: Material to cover guy wire where looped around trees shall be two-ply, 1/2 inch minimum diameter reinforced rubber hose or approved comparable, non- injurious product, length sufficient to properly protect trunk.

e. Trunk Wrapping Material: Commercial tree wrapping product of bituminous impregnated tape, heavy crepe paper, or other approved material 4 to 12 inches wide.

f. Twine: Not less than a two ply jute twine or comparable non metallic material of neat, inconspicuous appearance.

15.0 MULCH AND EDGING MATERIALS:

a. Pine Straw Mulch: Free of bark, sticks, pine cones.

b. Materials Specified as Requiring Approval: Secure representative sample(s) and arrange for

Owner to inspect; if disapproved, resubmit additional sample(s) until approved; keep approved sample for reference until near end of project before incorporating it in work.

c. Other Materials will be inspected upon Contractor's request; otherwise, inspection may take place at any time. Maintain sample(s) for reference.

16.0 GENERAL SEEDING PROCEDURES:

a. Seed Bed Preparation: Soil to be leveled off and raked smooth for reception of seed.

b. Fine Grading: All seed beds shall be fine graded so as to insure positive drainage. Areas graded so as to allow "birdbaths" and accumulation of silt and/or water which is detrimental to the establishment of turf will not be acceptable.

c. Seed Application: Seeding shall take place immediately after the incorporation of lime and fertilizer into the soil. The required amount of seed should be applied by an accepted method utilizing a minimum of two (2) passes at right angles over the prescribed area.

d. Rolling & Surface Compaction: Immediately after seeding, the entire area shall be compacted by means of a culti-packer, roller or approved equipment weighing approximately 90-lbs. (90#) per linear foot roller. A pneumatic roller (not wobble-wheel) will be required if the soil is of such type that satisfactory operation cannot be obtained through use of a smooth or corrugated roller. Final rolling of the area shall be at right angles to existing slopes to prevent any erosion by runoff.

17.0 GENERAL SODDING PROCEDURES:

a. Subgrade Preparation: Preparation of the subgrade and fine grading shall be as outlined in 16.0

GENERAL SEEDING PROCEDURES.

b. Orientation: Sod shall be rolled out in the orientation as directed by the County project manager or representative.

c. Laying Sod: The rolls of sod shall be lain to provide tight joints between abutting rolls. No pieces of sod of less than 12" square shall be lain in any location.

d. Rolling: After the sod is in place it shall be rolled with a roller consisting of a minimum of 50 lbs.

per linear foot of roller length.

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e. Repair of Depressed Areas: After rolling, any depressions of greater than 1" within an 18" radius shall be filled by removing the sod and placing soil in the depression sufficient to bring the sod up to grade. Any depressions under 1" in an 18" radius shall be brought to grade by a topdressing of sand.

f. Watering: The Contractor shall be responsible for keeping all sod watered during sodding operations. After all sod is in place, watering shall be the responsibility of the private property owner.

18.0 GENERAL PLANTING PROCEDURES:

a. Preplanting Care: Fully protect plants from damage by sun, wind, drought, water and other injurious conditions during transportation to site and during temporary storage before planting.

Store B&B plants heeled-in individually; mulch around container plants. Water plants as necessary until planting time.

b. Time of Planting: Plant under favorable weather conditions. At option of and under full responsibility of Contractor, planting operations may be conducted under unseasonable conditions without additional compensation.

c. Plant Quantities: A Materials List is provided in Drawings summarizing quantities of major materials required. Under lump sum contract, Contractor shall be wholly responsible for confirming quantities shown on Drawings and on List, for promptly reporting any discrepancy to the County project manager before bidding and for performing all work required by the Drawings and Specifications.

d. Plant Locations: Place individual plant pits, beds and trenches as indicated in Drawings. Make reasonable adjustments as directed by the County project manager or representative. Staking of layout is recommended, but optional.

e. Obstructions:

1. At or Below Grade: Remove where possible. Man-made obstructions such as functioning utilities, irrigation systems, etc. shall be avoided and not disturbed. Natural objects too massive to be removed with tractor mounted backhoe will require plant relocations as directed by the County project manager or representative.

2. Above Ground: Report overhead interference such as telephone or power lines and relocate plantings as directed.

3. Repairs: Promptly inform the County project manager of any damage and repair any damage to utilities, etc.

19.0 EXCAVATION OF PLANT LOCATION:

a. Tree and Shrub Pits: Dig pits with vertical sides to 6 inches deeper than depth of root ball, make diameter 1 foot greater than ball diameter of root spread; remove excavated subsoil from site.

b. Trenches and Beds: Dig out entire area to 6 inches below plant roots and to lines 6 inches outside root ball diameters or root spread; remove excavated subsoil from site. Beds for groundcovers shall be excavated at least 8 inches deep. All plant beds should be a constant grade to facilitate the proper installation of metal edging. The County project manager or representative shall inspect each bed prior to planting.

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20.0 PREPARATION AND PLACEMENT OF PLANTING SOIL MIXTURE:

a. Mixture for Trees and Shrubs: Homogenous blend of 1/3 (by volume) peat or finely ground pine bark and 2/3 topsoil with necessary soil conditioners added. Place and compact mixture to 6 inch depth in bottom of pit, bed or trench; reserve enough mixture for backfill. Incorporate fertilizer in proper season.

b. Groundcover Beds: Till and pulverize soil to depth of 12-16" inches. Add fertilizer according to common horticultural practice.

c. Treatment of Planting Beds with Post-Emergent Herbicides: All planting beds which have existing vegetative cover shall be treated with an approved post-emergent herbicide prior to bed preparation. The herbicide shall be Round-Up or Paraquat (or approved equal) according to season. Follow manufacturer's recommendations as to rate and method of application with special emphasis on the time the chemical must be in place prior to a rain. The herbicides shall be used strictly in accordance with the manufacturer's directions with respect to the effective and safe application of such toxic substances.

d. Treatment of Planting Beds with Pre-Emergent Herbicides: After bed preparation, all planting beds shall be treated with Ronstar G., Treflan or a comparable pre-emergent herbicide, that will not harm the type plants to be installed in the beds. These herbicides shall be used strictly in accordance with manufacturer's directions as to application quantity, methods and precautions to be used for effectively and safely applying such a toxic product.

21.0 SETTING TREES AND SHRUBS:

a. Orientation: Place each plant in vertical position and rotate to obtain visual appearance and proper relationship to nearby buildings or adjacent plants.

b. Root and Ball Preparation: Remove container from Cont. plants and lightly scarify sides of the root mass. Remove burlap from around trunk of B&B material.

c. Crown to Grade Relationship: After settlement, crown of root ball shall remain a minimum of 2 inches above average finished grade with compacted planting soil sloping away from trunk or stem and blending with finished grade.

d. Backfill: Fill remaining hole with planting soil mix; compact lightly and create saucer to trap water. Soak pit, trench or bed thoroughly with water soon after planting.

22.0 WRAPPING AND STAKING OR GUYING OF TREES:

a. Time: Stake or guy each tree promptly after planting.

b. Wrapping: Use on high-branched trees; not required on trees branched to ground. Apply insecticide to trunk and then begin wrapping at ground; neatly and snugly spiral wrapping upward with minimum 1-1/2 inch overlap; stop above lowest branch. Tie wrapping securely but not tight enough to constrain trunk growth. Do not wrap River Birch.

c. Trees, 2" Caliper or Less: Use one or more stakes of length sufficient for height and spread of tree (top of stake shall be at least 4 feet above grade for safety reasons) and locate per Drawings. Do not sever roots. Secure tree to stake with hose encased wire or other approved tie device; keep guys or ties as low as possible on trunk to encourage more rapid root establishment.

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d. Trees over 2" Caliper: Use 3-point support system per Drawings. Method is optional unless only a staking or only a guying detail is shown; then use only method detailed.

e. Wires: Encase each wire encircling a tree trunk with hose or other protective device to prevent bark abrasion. Tighten wires and maintain them taut; turnbuckle use is optional.

f. Flags: Place warning flags on guy wires in areas of pedestrian or maintenance hazard.

g. Removal of Stakes and Guys: Remove as soon as danger of overturning has passed.

23.0 SETTING GROUNDCOVERS:

a. Shaping Bed: Finish grade per Drawings to required contours and provide positive surface drainage.

b. Plant Spacing: Unless otherwise specified, center to center spacing of plants refers to planting bed surface plane, NOT a horizontal plane. Quantity estimates include allowances for such variation.

c. Root Preparation: Remove container plants and scarify roots in several places before placing in position.

d. Position of Plants: Place each plant in vertical position or in a manner that will provide best coverage. On steep slopes, this may mean axis of plant is not vertical.

e. Crown to Grade Relationship: Place crown high enough so plant will not be smothered by mulch. Slope planting mix upward from finished grade to meet crown.

f. Backfilling and Watering: Fill around roots with planting soil mixture and firmly compact, and form water saucer. Soak bed thoroughly with water soon after planting.

g. Mulching Groundcovers on Steep Slopes: After planting apply pine straw mulch 4" thick.

24.0 FERTILIZER APPLICATIONS:

a. Time of Application: Apply at time of planting or promptly thereafter; except do not apply during period of August 16th through March 1st unless otherwise directed by Landscape Architect.

b. Methods of Application:

1. Commercial Granules: Spread on soil surface (under mulch) or preferably mix into planting soil at specified rate. Uniform distribution is essential.

2. Tablets: Place as recommended by manufacturer.

c. Rates of Application: Follow manufacturer's recommendations based upon plant sizes.

25.0 PLACEMENT OF MULCH:

a. Time and Purpose: Place mulch to required uniform depth soon after planting to prevent drying of planting soil around roots. Unless other operations such as top dressing or fertilization necessitate delay, mulch promptly after planting. Do not delay more than 3 days after plants have been set.

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b. Mulch Depths:

TREES AND SHRUBS 4" Depth, over entire saucer, bed, or trench GROUNDCOVERS 2" Depth PLANTING BEDS 4" Depth

26.0 PRUNING AND REPAIR OF PLANTS:

a. Time and Purpose: Prior to inspection for Acceptance of work, perform minor pruning of plants to remove any growth damaged during handling, to compensate for root loss, or to enhance visual appearance as instructed by the County project manager or representative.

b. Care of Cuts and Abrasions: Where surface of any pruning cut exceeds 3/4 inch diameter, thoroughly apply tree wound paint. Where minor abrasions into living tissue may exist, cut back injured cambium per good arborculture practice and thoroughly apply tree wound dressing.

27.0 REPLACEMENT OF PLANTS:

Any plants to be replaced prior to Acceptance of work or under terms of Guaranty shall be installed following procedure set forth above.

a. Standard for Acceptance of Plantings: Each plant shall be of proper type, properly installed and maintained in good health. All water saucers and beds shall be neatly mulched and free of weeds and erosion damage.

b. Clean-Up, Protection, and Repairs: During landscape work, protect materials from loss, damage and deterioration during storage, installation and maintenance periods. Protect from unauthorized persons (trespassers) and landscape operations. Wherever possible, avoid replacement of damaged work, by treating or repairing to restore work to an acceptable condition as directed by the County project manager or representative.

END OF SECTION

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