Loading...
HomeMy WebLinkAbout2951-8PLANTING SPECIFICATIONS PART 1 - GENERAL 1.01 C�� � elOf ' A Work shall consist of furnishing all materials, services, and equipment necessary to completely install,all landscape work.as indicated on the drawings and herein specified. 1.02 QUARANTEE A. All plant materials installed under the contract shall be guaranteed against any and all poor, inadequate or inferior materials and/or workmanship for a period of 90 days from the date of written final acceptance. B. During the guarantee period, any material found to be dead, missing, or in poor condition shall be replaced by the Contractor within ten (10) days of written notifica- tion. C. Replacement shall be made in accordance with the original contract drawings and specifications. D. Material and labor involved in replacing plant material shall.be provided by the Contractor at no additional cost to the Owner. 1.03 50165 TEST Contractor shall obtain agronomic soils tests covering all planting areas after completion of finish grading and prior to start of soil preparation work. Tests shall be performed by an approved agronomic soils testing laboratory and shall, include a fertility and suitability analysis with written re- commendations for soil preparation, planting backfill mix, The soils report recommendations shall take precedence over the minimum amendment and fertilizer application rates speci- fied herein on l y when they exceed the spec i f -ed minimLmo . PART 2 - MATERIALS 2.01 FERTILIZERS, ORGANIC SOIL AMENDMENTS, AND INORGANIC 5QJJ, AMENDMENTS Fertilizers and soil amendments may include any or all of the specific materials specified herein and shall be ap- plied at the rates indicated on the plans or in Part 2.05, BACKFILL MATERIAL and Part 3.02, SOIL PREPARATION, herein. A. Fertilizer: Shall be 'Gro -Power Plus' as manufactured by Southern California Organic Fertilizer Co., Inc., P.O. Box 4907, E1 Monte, California, 91731, telephone: (714) 750-3830. B. Organic Soil Amendment: Shall be nitrogen fortified redwood or cedar wood shavings and shal-i contain a min- imum of 1% available nitrogen. Material containing man- ure or pine is unacceptable. C. Inorganic Soil Amendment: Shall be agricultural grade iron sulfate. 2.02 TOPSOIL All soil imported for backfill (if required) shall meet the following requirements: Topsoil shall be from a source outside the limits of the project, selected` by the Contractor and in compliance with the requirements'- specified herein. The Contractor shall submit a written report of a testing agency registered by p the State �I L. To soil shall have the same relative rc osition 'avid structure, a friable sandy loam character, and be free of roots, clods, and stones larger than 1 -inch in greatest dimen- sion, pockets pockets of coarse sand, noxious weeds, sticks, ..brush and other litter. It shall not be infested with nematodes or other undesirable insects and plant disease organisms. Topsoil shall meet the following additional requirements: A. Gradation Limits. Sand, 50-80 percent, clay 20 percent maximum. The sand, clay and silt gradation limits shall be as defined in ASTM D422. B. Permeability Rate. Not less than 0.5 inches (13mm) per hour nor more than 2 inches (51mm) per hour when tested in accordance with ASTM D2434 or other approved methods. C. Agricultural Suitability. The topsoil shall be suitable to sustain the growth of plants specified . 2.03 SEED All seed used for lawn 04�%ground cover plantings shall be labe!ed and shall be furnished in sealed standard containers. Seed which has become wet, moldy or otherwise damaged in transit or storage will not be accepted. A. Lawn: Seed mix sha1I OM rlgA- rL4440 Note: Thoroughly blend seed varieties prior to application. 2.04 HYDROMULCH MATERIALS Water: General precautions should be observed when drawing water from sources other than pressure main; Such water must be free of impurities. fid: Sled as spec i f ied, in 2:03 above. Minch: Fiber %hall be produced from: cellulose such as wood = pulp or similar organic material and shall be of such charac- ter that it will disperse into a uniform slurry when maxed with water. Materials which inhibit germination or growth shall not be present in the mixture. Fsrtilizer: 'Gro -Power' organic fertilizer per 2.01.-A, above. Qinding Agent: Dry f19W-organic concentrate, Ecology C•,vl- trols M -Binder or equal. Available from Robinson Fertilizer Co. (714) 538-3575. 2.05 PLANT All plants shall be true to name, and one of each bundle or lot shall be tagged with the name and size of plants in accord- ance with the standards of practice recommended by the American Association of Nurserymen. Plant ground cover in areas as shown on plans. Ground cover plants (rooted cuttings) shall have been grown in flats, and remain in those flats until transplanting. All trees and shrubs supplied by Contractor shall be of the specified standard height and diameter set by the American Standard for Nursery Stock. The height of the trees shall be measured from the root crown to the last division of the ter- minal leader and the diameter shall be measured six (6) inches above the crown roots. The trees shall stand erect without support. 2.06 BACKFILL MATERIAL. A. Topsoil used in the backfill material shall be a loamy, fertile, and friable soil and shall be free of weeds and seed. Topsoil shall conform to Section 2.02, TOP SOIL, of these specifications. B. Backfill material shall be prepared by blending the following materials and shall be used during planting as shown in the planting details: (1) 60% approved topsoil (2),+00/. organic soil amendment ( woodshavings ) (3) 15 pounds 'Gro -Power Plus' organic fertilizer per cubic yard (4) 2 pounds Iron sulfate C. All backfill material shall be bulk mixed, not individually mixed at each plant pit. 2.07 HEARS, STAKES, AND TIES A. Tree stakes shall be 2" dia. x 10 foot long straight - 21 grained copper napthanate treated iodgepole pine. 8. Tree ties shall be "Cinch Ties" manufactured by V.I.T. Co., Cerritos, California. (714) 871-2309 PART 3 -EXECUTION 3.01 LANDSCAPE GRADING The Contractor shall bring all planting areas to finished grades, filling as needed or removing surplus dint, r*1hov- ing rocks and debris over 1 inch in diameter, and floating to a smooth uniform grade. All areas shall slope to drain. Flow lines shall be established to existing road curbs and/ or a sidewalk as -shown on the plans and as directed. Final grade of all turf areas shall be flush with adjacent surface after turf establishment. 3.02 SOIL, PREPARATION A. All landscape mounding, rough grading, land finished grading shall be completed prior to beginning soil preparation. B. Soil preparation shall begin with rototilling of all planting areas to a minimum depth of 8" prior to distributing soil amendments. C. The following soil amendments shall be added per 1,000 square feet to all planting areas: 3 cu. yds. nitrogen stabilized organic amendment derived from redwood sawdust, fir, or cedar sawdust 200 lbs. organic soil amendment: 'Gro -Power Plus' (5-3-1) organic fertilizer (to be incor- porated to a minimum 8" depth following leaching ). 3.03 PLANTING A. Trees and Shrubs: Plant holes shall be dug to size as indicated in the drawings. Before trees are set in the holes, a water test should be made as follows: All plant holes shall be filled to the brim with water and allowed to drain before any planting is done. If water does not drain out of hole within 24 hours, conduct soil test. Plants shall be planted at such a depth that the crown roots bear the same relative position to finish grade as they did to the soils where they were grown. Backfill after planting shall be compacted carefully into place without injuring the roots of the tree or breaking up the ball;of earth surrounding the roots. B. Ground Covers Ground cover plants shall be planted in staggered rows, evenly spaced and at intervals tailed out on the drawings. Each plant shall be planted with its proportionate amount of the flat soil in a manner that will insure a minimum disturbance to the root systems. The cuttings shall be planted sufficiently deep to cover all roots. Root crown should bear same relationship to soil as it did in the flat. Immdiately sprinkle after each planting until entire area is soaked to a full depth of each hole. C- MULCH: GROUND COVER & SHRUB AR�EAB f .tich C1G �g e*l"6 b '+fat af-t a 'p1� ►ting using cubic yards of CWVe .M c mWo e2504 ML Le -H PSf 2-. 1 001r UMLE66 Zrmo=o 3.04 TREE STAKING Stake trees as per planting details® No metal wire shall circle any part of.any tree. 3.05 HYDROSEEDING A. Weed Eradication Procedures Prior to Hydroseeding: (1) Manually remove all existing vegetation unless otherwise shown on'the plans and legally dispose of it off-site. (2) Fertilize all planting areas with urea 35-0-0 com- mercial fertilizer at the rate of .5 lbs. (1/2 Ib.) per 1,000 square feet. (3) Water all planting areas thoroughly to a minimum depth of 6" for a period of two ( 2 ) consecutive weeks to germinate all residual weed seeds. (4) Discontinue watering for two (2) consecutive days. Then apply a non-selective broad spectrum systemic. herbicide per manufacturer's directions. No water shall be applied for a minimum of four (4) days following application of contact weed killer. (5) Allow a sufficient period of time to insure that all weeds are dead and remove. (6) Begin the hydroseeding operation on all areas as specified herein. All specified materials shall be delivered to the site in the supplier's original unopened containers bearing proper and accurate labeling. Mixing of hydroseed slurry: Mixing shall be -performed in a tank, with a built-in continuous agitation and re- circulation system of sufficient operating capacity to produce a homogenous slurry of fiber, M -Binder, seed, fertilizer, and water in the designated unit proportions. Fiber 19800 lbs. per acre Ecology M -Binder 100 lbs. per acre Lawn Seed: lbs. per acre Water 3,000 gal. per acre 'Gro -Power' organic fertilizer 1,000 lbs. per acre With agitation system operating at part speed, water shall be added to the tank, good recirculation shall be estab- lished. Materials shall be added in such a manner that they are uniformly blended into the mixture in the follow- ing sequence. When tank is 1/3 filled with water: Add binding agent - 1/2 acre requirement Add 3 - 50 1 b . bales of fiber Add seed -- 112 acre requirement Add 'Gro -Power' - 112 acre requirement Agitate mixture at full speed when the tank is half-filled with water. Add re-,iainder fiber requirement before tank is 3/4 full, and. add remainder seed, M -Binder. and 'Gro -Power' per amounts listed above. Slurry distribution should begin immediately. Area to be hydroseeded shall be moistened to a depth of six inches just prior to application. Application: Hydroseed slurry shall be applied under high pressure evenly and result in a uniform coat on all areas to be treated. Care shall -be exercised to assure that plants in place are not subjected to the direct force of of an application. Slurry shall be immediately„ removed from walks, pavement, structures, and ground cover areas, that are inadvertently sprayed. , All bare spots shall be reseeded by the Contractor within 15 days. The Contractor will be responsible for all re --Y. seeded areas for as long after seeding as necessary until acceptable germination and establishment is realized. 3.06 WATERING A. It shall be the Contractor's responsibility to maintain a balanced watering program to ensure proper growth until final acceptance of the work. B. Immediately after planting, apply water to each tree, shrub or vine. Apply water in a moderate stream in the planting hole until the material about the roots is com- pletely saturated from the bottom of the hole to the top of the ground. C. Irrigation: (1) Contractor shall properly and completely maintain the irrigation system. A balanced water program shall be maintained'to ensure proper growth until final acceptance of the work. (2) All c*ntroilers are to have each station 'individ ually adjusted on a monthly basin. System shall be set considering the application rate each area is capable of receiving. The system shall operate on short intervals, with the cycle repeating at a lwtar times to reduce runoff. 3.07 MAINTENANCE All areas landscaped by the Contractor under this contract shall be maintained by him for a period of not less than 90 days from the date of written acceptance for start of main- tenance. A. Start of maintenance criteria: (1) Maintenance period shall not start until all ele- ments of the project are completed in accordance with the contract documents. Projects will not be segmented into phases for maintenance purposes. (�) Power to remote controllers shall be established prior to the beginning of the maintenance period. (3) Written acceptance of the Owner's Representative must be obtained prior to the beginning of the maintenance period. B. End of Maintenance: (1) On satisfactory completion of the 90 day (minimum) maintenance period, the Owner's Rep. will inspect the project for final acceptance. (2) Deficiencies noted during inspection shall extend the maintenance period until all are corrected. (3) End of maintenance shall occur only on written ac- ceptance by the Owner. C. During'the maintenance period provide all watering, weeding, fertilizing, and cultivation, and spraying necessary to keep the plants and turf in a.healthy growing condition and to keep the planted areas neat, edged, and attractive. All trees and shrubs shall be pinched and pruned as necessary to encourage new growth and eliminate rank sucker -growth. Old wilted flowers and dead foliage shall be immediately pinched or cut off. D. After planting and during the maintenance period, in the event that trees exhibit iron chlorosis symptoms, apply FE 138 Geigy or equivalent at manufacturer's recommended rates. E. During the maintenance period, should the appearance of any plant indicate weakness, that plant shall be replaced immediately with a new healthy plant. At the and of the maintenance period, all plant materials shall be in a healthy, growing condition and spaced as indicated on the plans. F. Lawns shall be rotary mowed at.a 1-1/2 inch cut, minimum weekly. G. Damage to planting areas shall be repaired immediately and throughout the maintenance period. H. Miscellaneous Maintenance Items: (1) Depressions caused by vehicles, bicycles, or foot traffic shall be filled and leveled. Replant dam- aged areas. (2) Exterminate gophers and moles, and repair damage as above. 13) The Contractor shall apply 'Gro -Power' organic fer- tilizer at a rate of 25 pounds per 1,000 square feet, for a minimum of -2 applications. The f irst application shall be between the 45th and 50th day of the maintenance period and the second appli-I tion between the 80th and 85th day. Other applica- tions shall be made as necessary to maintain plant- ings in a healthy growing condition. Application shall be made in the presence of the Owner's Re- presentative. (4) Debris and trash.shall be removed from the site weekly at a minimum. 3.08 DISEASE AND PEST CONTROL Throughout the maintenance period, all plants shall be main- tained in a disease and pest free condition. A licensed pest control operator shall be retained by the Contractor to recommend and apply all pesticides, herbicides, and fungi- cides. 3.09 CLEAN UP Upon completion of the work, the Contractor shall smooth all ground surfacesg •remove excess materials, rubbish, debris, etc.; sweep adjacent streets, curbs, gutters, walkways, and trails; and remove construction equipment from the premises. Li Wt. -2-10-97 K I10. 97-05 DNK bY' C.R. L.B. Ptvlsl()ns: CITY OF FONT., CALIFORNIA PUBLIC K DEPARTMENT q +.� V ' v ®. TE AN --T JAELE CT 42 Z U - e CITY ENGINEER RCE DATE OF �i dn /N tg S V u✓ GSL Q U L&__J U WJ • H cn A� U _._.r LO Lo Li Wt. -2-10-97 K I10. 97-05 DNK bY' C.R. L.B. Ptvlsl()ns: CITY OF FONT., CALIFORNIA PUBLIC K DEPARTMENT q TE AN --T JAELE CT 42 Z - Yi - e CITY ENGINEER RCE DATE OF jt tg S tt. }