Delete: Section 920 — Landscaping Materials, in its entirety. Insert

2. 
   Origin. Refer to 920.06.06(c)(2). Cultivars may be produced in any state east of the Mississippi River.
   

3. 
   Species. Seed shall conform to the following species, subspecies, varieties, and cultivars:
   

MEADOW GRASS, SEDGE AND RUSH SEED SPECIES
COMMON NAME and CULTIVARS	SCIENTIFIC NAME
Big Bluestem cv. Niagara	Andropogon gerardii Vitman
Broomsedge Bluestem = Broomsedge	Andropogon virginicus L. Andropogon virginicus L. var. virginicus Andropogon virginicus L. var. decipiens C.S. Campbell
Common Rush = Soft Rush = Lamp Rush	Juncus effusus L. var. conglomeratus (L.) Engelm. Juncus effusus L. var. decipiens Buchenau Juncus effusus L. var. pylaei (Laharpe) Fernald and Wiegand Juncus effusus L. var. solutus Fernald and Wiegand
Deertongue cv. ‘Tioga’	Dichanthelium clandestinum (L.) Gould
Fowl Bluegrass	Poa palustris L.
Fox Sedge	Carex vulpinoidea Michx. var. vulpinoidea
Gamagrass cv. ‘Meadowcrest’, ‘Pete’	Tripsacum dactyloides (L.) L.
Indiangrass cv. ‘Rumsey’	Sorghastrum nutans (L.) Nash
Little Bluestem cv. ‘Aldous’	Schizachyrium scoparium (Michx.) Nash var. scoparium Schizachyrium scoparium (Michx.) Nash var. divergens (Hack.) Gould
Longhair Sedge = Bristly Sedge	Carex comosa Boott
Rattlesnake Mannagrass	Glyceria canadensis (Michx.) Trin.
Shallow Sedge = Lurid Sedge	Carex lurida Wahlenb.
Switchgrass cv. ‘Blackwell’, ‘Shelter’	Panicum virgatum L. var. virgatum Panicum virgatum L. var. spissum Linder
Virginia Wildrye	Elymus virginicus L., Elymus virginicus L. var. halophilus (E.P. Bicknell) Wiegand
Woolgrass	Scirpus cyperinus (L.) Kunth

5. 
   Wildflower Seed. Seed shall be supplied in lots of individual species, unmixed, labeled with common name, scientific name, and cultivar in conformance with the following:
   

1. 
   Purity. Species shall be 98 percent purity or greater, with 75 percent germination or greater, and with weed and/or other crop seed content of 2.5 percent or less by weight. Seed that does not conform to purity requirements may be used after approval by the Engineer in consultation with the Landscape Operation Division at increased seeding rates, or with measures to compensate for increased weed or crop seed content.
   

2. 
   Origin. Any State of the United States.
   

3. 
   Species. Seed shall conform to the following species, subspecies, varieties, and cultivars:
   

WILDFLOWER SEED SPECIES
COMMON NAME and CULTIVARS	SCIENTIFIC NAME
Blackeyed Susan	Rudbeckia hirta L. var. hirta Rudbeckia hirta L. var. pulcherrima Farw.
Calendula	Calendula officinalis L.
Common Sunflower cv. ‘Autumn Beauty’	Helianthus annuus L.
Doubtful Knight’s-spur = Rocket Larkspur	Consolida ajacis (L.) Schur
Firewheel = Annual Gaillardia	Gaillardia pulchella Foug. Gaillardia pulchella Foug. var. pulchella
Garden Cornflower = Bachelors Button	Centaurea cyanus L.
Garden Cosmos = Pink Cosmos, cv. ‘Sensation’	Cosmos bipinnatus Cav.
Lemon Beebalm	Monarda citriodora Cerv. ex Lag.
Moroccan Toadflax = Spurred Snapdragon	Linaria maroccana Hook. f.
Siberian Wallflower	Erysimum ×marshallii (Henfr.) Bois
Sulphur Cosmos = Yellow Cosmos, cv. ‘Bright Lights’	Cosmos sulphureus Cav.

6. 
   Shrub Seed. Seed shall be supplied in lots of individual species, unmixed, labeled with common name and scientific name in conformance with the following:
   

1. 
   Purity. Weed and/or other crop seed content shall be 0.5 percent or less by weight. Minimum purity and minimum germination shall conform to the requirements of (3), below.
   

2. 
   Origin. Refer to 920.06.06(c)(2).
   

3. 
   Species. Seed shall conform to the following species, subspecies, and varieties:
   

SHRUB SEED SPECIES
SPECIES Including Subspecies and Variety	PURITY Min %	GERM Min %
American Black Elderberry Sambucus nigra L. ssp. canadensis (L.) R. Bolli	98	60
American Cranberrybush Viburnum opulus L. var. americanum Aiton	99	70
Black Chokeberry Photinia melanocarpa (Michx.) K.R. Robertson and Phipps	99	70
Bristly Locust Robinia hispida L. var. fertilis (Ashe) R.T. Clausen Robinia hispida L. var. hispida	99	90
Chokecherry Prunus virginiana L. var. viginiana	99	70
Common Buttonbush Cephalanthus occidentalis	98	60
Common Ninebark Physocarpus opulifolius (L.) Maxim., orth. cons.	99	75
Common Winterberry Ilex verticillata (L.) A. Gray	99	60
Desert False Indigo Amorpha fruticosa L.	98	70
Fragrant Sumac Rhus aromatica var. aromatica	99	85
Gray Dogwood Cornus racemosa Lam.	99	70
Inkberry Ilex glabra (L.) A. Gray	98	60
Mapleleaf Viburnum Viburnum acerifolium L.	99	70
Maryland Senna Senna marilandica (L.) Link	99	70
Nannyberry Viburnum lentago L.	99	75
Red Chokeberry Photinia pyrifolia (Lam.) K.R. Robertson and Phipps	85	60
Red Elderberry Sambucus racemosa L. var. racemosa	95	70
Redosier Dogwood Cornus sericea L. ssp. sericea	99	70
Silky Dogwood Cornus amomum Mill.	98	70
Smooth Sumac Rhus glabra L.	99	80
Southern Arrowwood Viburnum dentatum L. var. dentatum Viburnum dentatum L. var. venosum (Britton) Gleason Viburnum recognitum Fernald	99	70
Spicebush Lindera benzoin (L.) Blume var. benzoin	95	60
Staghorn Sumac Rhus typhina L.	99	85
Steeplebush Spiraea tomentosa L.	85	70
Swamp Rose Rosa palustris Marsh.	99	65
Witch Hazel Hamamelis virginiana L.	99	70

1. 
   SHA Turfgrass Seed Mix.
   

2. 
   SHA Special Purpose Seed Mix.
   

3. 
   SHA Temporary Seed Mix.
   

1. 
   Inspection. The Plant Material Inspection will be conducted in Maryland at the nursery where the plant material is grown, or at the brokerage where the plant material is sold. When plant material is produced by a nursery outside Maryland, the Inspection will be conducted at the Contractor’s holding area, or at the project site before planting, unless otherwise specified in the Contract Documents.
   

The Contractor shall ensure that the plant material is present for inspection on the scheduled date, and that it meets the requirements of 920.07. The condition and identity of plant material will be subject to re-inspection for the duration of the Contract.

2. 
   Scheduling. The Inspection will be scheduled by the Engineer in consultation with the Landscape Operations Division. At least 14 days notice to schedule an Inspection within Maryland, and at least 45 days notice to schedule an Inspection outside Maryland.
   

3. 
   Seals. The Administration will determine which plants, if any, will be tagged with Seals. When Seals are placed upon representative plants within a block of plant material, the plant material delivered for installation shall be similar in size, shape and character to the plant material that received Seals. Plant material that is delivered with broken or missing Seals, or that is not similar to the plant material within the block that was tagged with Seals will be rejected.
   

4. 
   Rejected Plants. Plant materials which do not meet these requirements will be rejected. Plant material rejected at the nursery or holding area shall not be delivered to the project; if delivered, it shall immediately be removed. Plants shall not be installed until the Plant Material Inspection has been completed and satisfactory identification has been provided.
   

1. 
   Hardiness Zones and Origin. Trees, shrubs, perennials and ornamental grasses shall be nursery grown within plant hardiness zones 5, 6, or 7 according to the ‘USDA Plant Hardiness Zone Map’ in the following states, unless specified otherwise: Maryland, Ohio, Pennsylvania, New York, New Jersey, Delaware, Virginia, West Virginia, North Carolina, Tennessee, Kentucky, Georgia. Annuals and bulbs shall be nursery grown.
   

2. 
   Names and Identification. Refer to 920.06.01. Plant material shall be clearly and correctly identified by the grower or distributor. Plant materials that are misidentified, or not satisfactorily tagged or labeled, or do not conform to the accepted characteristics of the species or cultivar, will be rejected.
   

3. 
   ANSI Standards. Plant material shall conform to ‘American Standard for Nursery Stock (ANSI Z60.1) of the American Nursery and Landscape Association. Plant grades shall be those established in ANSI Z60.1, and shall include plants from that size up to but not including the next larger grade size. When specimen plants are specified by the Contract documents, the specimen requirement shall also be met. Plant material which does not meet the standards of this section shall be rejected.
   

4. 
   Health and Sanitation. Plant material shall be dug and transported in conformance ANSI Z60.1. Bare root deciduous plants shall be delivered in a dormant condition. Roots shall be adequately protected and kept moist.
   

Plant material shall be in good health and be declared and certified free from disease and insects as required by law for transportation, and shall be free from pest-related stress and pest damage.

5. 
   Shade and Flowering Trees. Shade and flowering trees shall be symmetrically balanced. Major branch unions shall not have ‘V’ shaped crotches, bark inclusion or unions derived from water sprouts (epicormic growth) capable of causing structural weakness.
   

Trees shall be free of unhealed branch removal wounds greater than 1 in. diameter, or wounds or scars caused by staking, wire or ties, or any other defect which could cause structural failure or disfigurement.