702.1General Description
This work includes furnishing and planting vines, shrubs, trees and plants, treating regenerated areas, and environmental mitigation planting for riparian buffers and tidal marsh areas. 702.1.01 Definitions General Provisions 101 through 150. 702.1.02 Related References
Standardized Plant Names ANSI A300 Part 1 Pruning Standards ANSI Z60.1 American Standards for Nursery Stock 702.1.03 Submittals
Submit certificates of inspection with the invoice for each shipment of plants as required by law for transportation. File certificates with the Engineer before the material is accepted. Plants may be rejected at the site regardless of Federal or State government inspections at the place of growth.
When both primary and alternate plants are specified, use the alternate only after providing written proof that the primary plants specified are not available. In this case a Supplemental Agreement is not required to use the alternate plants. When a primary or an alternate plant cannot be furnished, provide the Engineer written proof that neither is available. A Supplemental Agreement is required for substitute plants in this case. Use approved substitute plants, as designated by the Engineer, equal in value to specified plants. Request substitutions at least thirty (30) days before the end of the planting season in the area.
702.2Materials
Ensure that materials meet the requirements of the following specifications: Material Section Water 700.2.B Agricultural Lime 882.2.01 Fertilizers 891.2.01 1360 1360 1360 1360
Material Section Plant Topsoil 893.2.01 Landscape Mulch 893.2.02 Vines, Shrubs, Trees, and Miscellaneous Plants 893.2.03 Tree Paint 893.2.06 Prepared Plant Topsoil 893.2.07 Stakes 893.2.08 Organic Soil Additives 893.2.09
Furnish plants according to the plant name and specifications included on the plan sheets.
Ensure that the botanical and common names of plants specified conform to the most current edition of Standardized Plant Names, as adopted by the American Joint Committee on Horticultural Nomenclature.
the engineer.
Ensure that plants meet the grade requirements of the most current American Nursery and Landscape Association ANSI Z60.1 and any other requirements. Caliper used for establishing plant grades or trunk sizes is measured according to the American Nursery and Landscape Association ANSI Z60.1. Plant trees with straight stems and symmetrical branches according to their natural growth. Trees with broken or damaged terminal or main stems will be rejected. There shall be a single dominant leader to the top of the all large canopy shade trees. There can be a double leader in the top 10% of the tree height. Trees should be rooting into the root ball so that soil or media remains intact and trunk and root ball move as one when lifted, but not root bound. The trunk should bend when gently pushed and should not be loose so it pivots at or below the soil line. There shall be no roots greater than 1/10 diameter of the trunk circling more than one-third the way around in the top half of the root ball. Roots larger than this may be cut provided they are smaller than one-third the trunk diameter. The leaf-bearing crown should be full and uniform. Leaves should show no evidence of chlorosis, necrosis, disease or insect infestation.
Use nursery-grown bare root seedlings which are a minimum of three (3) ft. (1 meter) in height above the ground with a 1/4 in. (6.35mm) caliper, and a minimum primary root length of five in. (5) unless specified differently on the plan drawings. Use approved substitute plants, as designated by the Engineer, equal in value to specified plants. Request substitutions at least 30 calendar days before the end of the planting season in the area. Wet swale bare root Juncus effuses shall be fresh divisions with a full, dense root base.
Unless otherwise specified, use plants stock-grown in a licensed nursery under intensive care and cultivation for at least one year. The largest branches of shade trees should be spaced at least 6 inches apart. The branch system shall be normally developed and free of disease, injurious insects, disfiguring knots, sun-scald, injuries, bark abrasions, dead or dry wood, broken terminal growth, or other disfigurements. Stems should show no evidence of die-back. Ensure that proper certificates of inspection and a complete list of the nursery growers accompany nursery grown plants. See Subsection 893.2.03. 1361 1361 1361 1361
Select materials and execute operations required under the specifications and drawings with the approval of the Engineer. Remove rejected materials from the site promptly. 702.2.01 Delivery, Storage, and Handling
Protect bare root plants from drying out until planted. Uncovered roots without moisture-loss gel coating shall be exposed to air no longer than 15 minutes.
they are delivered.
Keep container-grown plants moist but well drained until planted. Handle plants by the container or soil ball and not by the top growth.
Properly maintain heeled-in plants until they are planted. Do not allow plants to remain heeled-in over the summer or for over 30 days without the Engineer’s consent.
Injured plants will be rejected. Protect tops of shrubs and trees while in transit to prevent windburn.
Live stakes shall be moistened, capable of rooting, without injury and stripped of all stems and leaves with a minimum of scarring. The stakes shall be from 5 to 8 ft. (1.5m to 2.4m) in length with a basal end of 0.5 to 1.5 in. (1.27cm to 3.8cm) in diameter. The top ends shall be blunt and cut square and the butt ends angled.
702.3Construction Requirements
702.3.01 Personnel General Provisions 101 through 150. 702.3.02 Equipment General Provisions 101 through 150. 702.3.03 Preparation
The Engineer will inspect trees or plants from the bidder’s source for acceptability and conformity to specification requirements for approval by the Engineer. When rejecting the trees or plants, the Engineer reserves the right to pursue and examine other sources of plants to find acceptable specimens. This change will not constitute an increase in cost to the State.
Clear and grub the planting area before planting or beginning to prepare the plant bed, unless noted differently on the plans. See Section 201. 1362 1362 1362 1362
Prepare for planting as follows:
Stake planting limits according to plan details and the Engineer. Have the Engineer approve the method of plant identification before planting. For median plantings, keep any woody plant a minimum of 3 ft. (1m) from the edge of the plant bed to avoid vegetative growth into the roadway. For stream buffers identified as “Stream Buffer” or “wet swales”, on plans, the plant species shall be planted in a random, intermixed manner throughout the entire planting area. At the edges of the planting zone, keep new plants a minimum of 8 ft. (2.4m) from existing trees or permanent structures.
least 2 in. (50 mm) deep. Thoroughly dig it into the soil to at least 6 in. (150 mm) deep using a rotary hoe type tiller or other equipment that evenly mixes the soil, lime, fertilizer, and organic soil additive.
satisfaction of the Engineer.
marsh the addition of fertilizer or lime is prohibited. 702.3.04 Fabrication General Provisions 101 through 150. 702.3.05 Construction
For geographic seasonal limitations, refer to the Planting Zones Map found in Subsection 700.3.05. Plant in Zones 1 and 2 between October 15 and March 15. Plant in Zones 3 and 4 between November 1 and January 1.
Plant using the method called for on the details and plan sheets. Before beginning planting of each area, have available the necessary materials including prepared plant topsoil (see Subsection 893.2.07), water, stakes, and mulch. Plants shall be installed as straight/upright as possible. Any plants found to be leaning or broken will not be accepted or paid for by the engineer. When seasonal limitations and weather conditions permit, continuously water, mulch, guy, provide tree guards, and stake as indicated on the plans and details until completing the last operation. After completing planting, provide a method for retaining water adjacent to the plant according to the details shown on the plans or as directed by the Engineer. Protect marsh restoration areas from vehicles and machinery. Typical protective barriers are not to be used in tidal areas. Stakes that remain secure and are taller than the highest tide, flagged with highly visible flagging tape, are required to mark the area to be protected and off-limits for vehicles and machinery.
Plant bare-rooted plants delivered to the pit area. Protect roots from drying out until placing them in the pit. 1) Center plants in pits and spread roots as they originally grew. 2) Cover and prepare the topsoil according to details shown on the plans.
Immediately plant these plants after they are delivered to the pit site. 1363 1363 1363 1363
1) The pit diameter shall be a minimum of 3 times the diameter of the rootball. Center the ball in the prepared pit, leaving the top of the ball 1 in (25 mm) above the top of the ground for settlement. 2) Cut away and remove the top 1/3 of burlap from the rootball. Cut all ropes and twine, pull the nails, and drop the remaining burlap to the bottom of the hole. Cut away and remove all wire from the root ball. 3) Partially fill the pit with prepared plant topsoil and compact the soil enough to hold the ball firmly. Add mycorrhizal innoculant to plant topsoil if specified in plans.
1) When the container is delivered to the pit site, split the container from top to bottom and carefully remove the plant. 2) The pit diameter shall be a minimum of 3 times the diameter of the rootball. Spread into the hole any major roots growing around the container or prune them to remove any circular growth. 3) Place the ball in the center of the prepared pit, leaving the top of the ball 1 in. (25 mm) above the top
of the ground for settlement.
4) Partially fill the pit with prepared plant topsoil and compact the soil enough to hold the ball firmly. Add
mycorrhizal innoculant to plant topsoil if specified in plans.
After placing pit plantings, water plants thoroughly the same day regardless of weather or soil
moisture conditions.
1) After the water has soaked in, add prepared plant topsoil and compact firmly up to 2 in. (50mm)
below the adjacent ground.
2) Stop compacting when the compacted prepared topsoil is 2 in (50 mm) below the adjacent ground.
3) Fill the remainder of each pit with loose, prepared plant topsoil according to the details shown on
the plans.
4) Prepare the loose topsoil to retain water adjacent to the plant according to the Plans or as directed
by the Engineer.
1) Plant live willow stakes at four (4) ft. (1.2m) intervals or as indicated on the drawings with the buds
facing upward.
2) Eighty (80) percent of the stake shall be installed below ground, leaving twenty (20) percent extending
above ground.
3) Stakes shall be placed deep enough to reach the water table during the dry season at an angle
perpendicular to the slope.
4) Pack soil firmly around the hole after installation.
5) Install live willow (Salix spp.) stakes only in the dormant season, according to the planting details and
landscape plan notes.
6) Replace any live stakes that split during installation.
Planting shall only be done when there is adequate moisture in the ground and when the ground is not frozen.
Provide proper root positioning and contact with the soil and eliminate all air pockets around roots. Roots of
seedlings shall not be pinched or bent in a sideways or upturned direction.
Each tree, division, or seedling shall be inserted into the hole such that the root collar of the tree will be at
ground level after backfilling is complete. Allowance for burying the root collar below ground level shall not
exceed one-half inch in depth. In no case shall planting result in the root collar remaining above ground level.
The soil back-filled around the root system shall be compacted sufficiently to support the plant. Mow or use a 1364136413641364
string trimmer to a height of 1 in. (25 mm) in the area designated for restoration. Do not trim wet swales or
retention basins where standing water is present.
Grass the area designated for restoration with a native restoration or riparian seed mix and apply wheat straw
mulch to the area before planting seedlings.
Plant within 48 hours after mowing or string trimming the site.
plant anchor for each plant. See planting plan sheets and details for plant anchor and anchoring descriptions.
Follow these requirements when mulching for pit plantings:
beyond the outermost plants. Where plants are more than 8 ft. (2.4 m) apart, apply mulch in a circular
fashion around each plant, forming a ring 5 ft. (1.5 m) in the outside diameter.
as shown in the planting details on the plans.
least 3 in. (75 mm).
mulch to the elements.
following notification.
paving edges, drainage structures, and where planting beds meet grassed areas.
Apply landscape mulch according to Subsection 702.3.05.C.1 with the following exceptions:
enough to conserve moisture in the seed bed.
mulch used.
present.
Do not wrap the trucks of tree unless specified in the plans. When wrapping is specified, tightly wrap the trunks of
deciduous trees over 1.25 in. (32 mm) in caliper. Wrap in strip burlap or waterproof crepe tree wrapping paper or
other approved materials.
of one half the width of the wrapping material.
wrapping. Wrap immediately after planting. 1365136513651365
regenerated areas within specified planting dates according to the Plans or as directed by the Engineer. Keep
staking for tidal marsh areas secured with supports taller than the highest tide with highly visible flagging tape
to mark the area as off-limits for vehicles and machinery.
according to plan details.
roots become anchored. The system should allow the top some movement and flexibility without damaging
the tree.
the plant. Never prune severely to get plants to meet specifications.
to the next sound, outside lateral bud, branch, limb, or root.
is not permitted. Remove sucker growth from Crape Myrtles.
nearest to the next viable outside lateral bud, branch, limb or root.
after applying fertilizer called for in Subsection 702.3.05.H and as necessary to maintain enough moisture to
promote plant growth. Use water reservoir bags if specified in plans or details.
around the plant, not the tops.
condition from the site immediately. Apply supplemental watering to maintain vigorous growth and to
keep plants moist and as directed by the Engineer.
Subsection 702.3.07.B and 702.3.07.C for shrub and tree watering requirements throughout the life of
the project. 1366136613661366
Follow these requirements when applying fertilizer in the spring:
Apply a slow-release fertilizer according to soil test results. Assume 8-12-12 with a rate of 1 cup (0.25 L)
per caliper inch of tree for bidding purposes.
Fertilize shrubs according to soil test results with a slow release fertilizer by spreading fertilizer around the
base of the plant and working it into the soil by hand. Assume 6-12-12 with a rate of 0.5 cup (0.12 L) per
foot of shrub height for bidding purposes.
Bed Areas
Spread fertilizer on bed areas (defined by method of planting in Subsection 702.3.05.B), over the mulch
according to soil test results. Assume 3 lbs./100ft2 of 6-12-12 for bidding purposes. Thoroughly water in
the plants.
The addition of fertilizer or lime is prohibited within the native restoration or stream buffer planting areas.
The addition of fertilizer or lime is prohibited within marsh areas.
Apply fertilizer in the spring in Zones 1 and 2 (with reference to the Planting Zones specified in
Subsection 702.3.05.A) between April 1 and April 15. Apply between March 15 and April 1 for Zones 3 and 4.
For late plantings, do not apply fertilizer less than 30 days after the plantings.
Approximately one month after the spring fertilizer is applied; the Engineer will inspect planted areas and
determine if an additional application of fertilizer is needed for any plant or group of plants.
If the Engineer determines additional fertilizer is required, apply fertilizer according to soil test results between
June 15 and July 15th.
Each planted bare root, sapling-sized plant shall be fitted with a tree guard to protect the saplings from wildlife
browsing. The tree guards shall be at least 36 in. tall, with appropriately sized wooden stakes or bamboo to
securely support the tree guard [i.e., a 4 ft. (1.2 meter) stake for a 36 in. (914.4 mm) guard]. Mesh tube-type tree
guards are required. Vexar tubes, or equivalent, are to be used. All tree guards shall be removed from the
saplings at final inspection.
Restore areas where existing grass has been damaged or scarred during planting operations at no expense to the
Department. Restore the disturbed areas to their original conditions as directed by the Engineer. Clean up debris,
spoil piles, and containers and leave the Project area clean.
Clean up and remove all debris, spoil piles, containers, water reservoirs, trash, etc. and leave the project area in an
acceptable condition. Inspect all installed erosion control devices weekly and clean out or repair as required.
Remove all erosion control devices at final acceptance unless otherwise instructed by the Engineer.
702.3.06 Quality Acceptance
Preserve the plants in a healthy growing condition and keep plants moist, particularly during drought conditions (no
rain for any two-week period). The acceptability of the plant material planted and maintained as specified will be
determined at the end of an establishment period.
The plant establishment period is the period from the last planting specified in Subsection 702.3.05.B until the
following October 1. Plant all plants in one planting season unless otherwise approved by Engineer. 1367136713671367
At the end of the first planting season, the first establishment period begins. The Department will make the first
semi-final inspection 30 days before the end of the first establishment period. Replace dead, dying, diseased,
unsatisfactory, and missing plants, by January 20 of the next (second) planting season. For stream buffer areas, all
replacement plants shall be tagged with 18 in. (457.2 mm) lengths of brightly-colored survey tape. Tree guards
shall be placed around all replacement saplings. All costs for replanting, tagging and tree guards for replacement
trees shall be included in the contract price bid for the original planting.
At the end of the second planting season, the second plant establishment period begins. The Department will
make the second semi-final inspection 30 days before the end of the second establishment period. Again, replace
dead, dying, diseased, unsatisfactory, and missing plants, by January 20 of the next (third) planting season. For
stream buffer areas, all replacement plants shall be tagged with 18 in. (457.2 mm) lengths of brightly-colored
survey tape. Tree guards shall be placed around all replacement saplings. All costs for replanting, tagging and tree
guards for replacement trees shall be included in the contract price bid for the original planting.
The Department will make the final inspection of the plants during May, following any needed replacements during
the previous planting season. Assume responsibility for the plants until the Final Acceptance of the project or a
portion of the project.
702.3.07 Contractor Warranty and Maintenance
Project maintenance includes, but is not limited to, watering, cultivating, weeding, pruning, repairing, adjusting guys
and stakes, and performing other work as ordered by the Engineer until final acceptance.
Promptly remove from the project area dead plants or those that no longer conform to the requirements of
Subsection 702.2.A.2.
Mow the entire right-of-way within the limits of the project up to a maximum of four times per calendar year. Do not
mow native restoration areas, wet swales, or riparian mitigation sites.
Straighten leaning trees as directed by the Engineer. Follow Staking and Guying requirements for replacements or
repairs as per Subsection 702.3.05.E.
Prune dead or diseased limbs to provide for plant health and appearance as directed by the Engineer.
Continuously maintain shrub and tree beds with a clean, freshly mulched appearance using the mulch
originally specified. See Subsection 702.3.05.C. Do not mulch shrub and tree beds within riparian
mitigation sites.
initially mulched, at the following times:
1) In August, during the first plant establishment period.
2) In April, during the second plant establishment period.
3) In August, during the second plant establishment period.
4) In April, prior to the final inspection.
See Subsection 702.3.05.H. 1368136813681368
Apply insecticides, fungicides, and herbicides according to the manufacturer’s recommendations to
effectively control or eradicate the problem.
operator whose license includes subcategory 27 – Right of Way Pest Control. Carry the pesticide
license/certification on the work site during applications. Carry all labeling associated with the chemical
being applied at the work site.
used prior to application for approval.
weather is greater than 10 miles per hour.
any additional protective safety attire or gear as recommended by the product’s manufacturer.
Department, to the satisfaction of the Engineer.
Department Ecology Manager.
vee-cut edging detail specified on the plans is maintained. Prevent grass and weeds from growing over or
into the shrub beds and tree pits.
their base and “sampling the soil” approximately 4 in. (100mm) deep. Water if the soil is not moist.
the watering requirements.
water in a manner to prevent erosion. 1369136913691369
Perform weed control throughout the project, a minimum of once every two weeks, in all areas within the
project limits to maintain tree pits, shrub beds, sidewalks, curb and gutter, walkways, ditch paving, concrete
medians, and other pavement weed free. Meet the following conditions:
visible in the planting beds.
accomplished using herbicides if approved by the Engineer. However, the use of herbicides is prohibited
in stream buffer areas unless approved by the Department Ecology Manager.
throughout the contract. The use of pre-emergent herbicides is prohibited in stream buffer areas. Apply
pre-emergent to all shrub beds and tree pits. Notify the Engineer 48 hours prior to spraying. Use a blue
dye in all applications unless approved otherwise by the Engineer.
including stream buffer and marsh areas. Volunteer, non-invasive plant material within stream buffer
restoration areas is acceptable.
Remove debris such as paper, broken limbs, bottles, cans, etc., a minimum of the first and third week of each
month from all areas within the project limits while maintaining the site.
Pruning, mulching, edging, and applying spring fertilizer are not required within wet swales, native restoration
areas, stream buffers and regenerated forest areas.
See Subsection 702.3.07.B.6
See Subsection 702.3.07.B.2
See Subsection 702.3.05.H.
Periodically (once every two weeks) observe trees and shrubs for abnormal conditions such as insects,
borers, web worms, red spiders, etc., and immediately treat.
Remove sucker growth once a month. Sucker growth is the shoots that sprout out around the base of the
tree trunk.
Remove deadwood at least two times a year. Prune dead branches. Paint cuts, and wounds or scars with tree
paint only when specified in the plans. Do not top Crape Mrytles. See Subsection 702.3.05.F.
NOTE: Apply pesticides as necessary to control harmful insects and diseases. Follow the manufacturer’s
instructions. See Subsection 702.3.07.B.4. NOTE: Use chemicals according to Federal, State and county
directives on environmental control that carry an EPA approval number.
See Subsection 702.3.07.B 1370137013701370
Remove all support guy wires, strapping and stakes from plants which have gone through one complete
growing season.
702.4Measurement
Plants of the name and size specified are measured for payment according to the number planted that are still
living and viable and in an acceptable condition at the time of Final Acceptance. A viable plant must have a
minimum of 75 percent of the leaf-bearing crown with healthy foliage.
Spring application fertilizer applied to planted and regenerated areas will be the actual number of pounds
preparation are not measured for separate payment. For stream buffer and marsh areas, the addition of fertilizer or
lime is prohibited.
Perimeter stakes is not measured for payment unless such item is shown as a separate Pay Item in the proposal.
Clearing and grubbing is not measured for payment unless the Item is shown as a separate Pay Item in
the proposal.
The quantity of landscape mulch and top-dressing measured for payment will be the actual number of square
yards (meters) completed as specified and accepted. The presence of weeds or other growth, or foreign material,
will be cause for rejection.
702.4.01 Limits
General Provisions 101 through 150.
702.5Payment
Plants measured for payment will be paid for as follows:
next estimate.
or as ordered by the Engineer.
If the Contractor fails to properly maintain the landscaping, daily charges shall be assessed against any
money due or that may become due the Contractor in accordance with the schedule of deductions shown in
Subsection 108.08, but not less than $150 per calendar day, and will continue until project maintenance is
approved by the Engineer.
The charges are in addition to those specified for delay or failure in completing the Work within the
specified time.
of the live, viable plants.
each of the live, viable plants. 1371137113711371
per each plant not accepted.
Payments are full compensation for furnishing, planting, replanting as required, pruning, staking, guying, soil
conditioning, and preparing plant beds, including applying additives, digging plant pits, preparing plant topsoil
and mulch, disposing of waste material, and maintaining the plants during the plant-establishment period.
All grades of fertilizer applied in the spring, measured as specified above, are paid for at the Contract Price per
pound (kilogram) or per ton (megagram), whichever is indicated in the proposal. Payment is full compensation for
furnishing and applying and for watering regenerated areas.
For native restoration, stream buffer and marsh restoration areas, the addition of fertilizer or lime is prohibited.
Perimeter stakes will not be measured for payment. The cost will be included in the overall contract price.
Landscape mulch measured for payment will be paid for as follows:
yard (meter).
Department will pay 15 percent of the Contract Unit Price bid per square yard (meter).
Department will pay 15 percent of the Contract Unit Price bid per square yard (meter).
Department will pay 15 percent of the Contract Unit Price bid per square yard (meter).
Final Inspection), the Department will pay 15 percent of the Contract Unit Price bid per square yard (meter).
Such payment shall be full compensation for furnishing, installing, topdressing, and maintaining mulch
as required.
Payment will be made under:
Item No. 702 Plant Name and Size Per each
Item No. 702 Fertilizer, Spring Application Per ton (megagram)
Item No. 702 Landscape Mulch Per square yard (meter)
Item No. 702 Spring Application Fertilizer Per pound (kilogram)
Item No. 702 Live Stakes and Planting Per each
Item No. 702 Perimeter Stakes Per each
Item No. 702 Bare Root Seedling Planting Per each
702.5.01 Adjustments
General Provisions 101 through 150.. 1372 1372 1372 1372
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