HomeMy WebLinkAboutCT 96-02; Terraces at Sunny Creek; Tentative Map (CT) (7)I
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11770 BERNARDO PLAZA COURT, SUITE 112 A SAN DIEGO, CA 92128-2519 A PHONE (619) 673-5845 A FAX (619) 673-5849
URBAN WILDLAND INTERFACE ZONE
FIRE PROTECTION ENGINEERING ANALYSIS
I THE TERRACES RESIDENTIAL DEVELOPMENT
CARLSBAD, CALIFORNIA
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Prepared for:
I Mike O'Hara
Russell W. Grosse Development Company Inc.
5850 Avendia Encinas, Suite A
• Carlsbad, California 92008
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SEC Project No. 2097024
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I Decembers, 1997
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This report is the property of Schirmer Engineering Corporation. Copies retained by the client shall be utilized
only for his use and occupancy of the project, not for the purpose of construction of any other projects.
Fire Protection Engineering A Code Consulting A Loss Control A Security System Design
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The Terraces Residential Development -i- December 3, 1997
Carlsbad, California SEC Project No. 2097024
TABLE OF CONTENTS
INTRODUCTION 1
APPLICABLE CODES 1
PROJECT DESCRIPTION 3
GENERAL APPROACH 5
FIRE PROTECTION PROGRAM 10
Building Construction 10
Water Supply 12
Automatic Sprinkler Protection 12
Fire Hydrants 12
Fire Department Access 12
Defensible Space 13
CONCLUSION 13
APPENDIX A - FUEL MODIFICATION PLANT LIST
INDEX OF TABLES
Table 1. Wildland/Structure Separation 8
Table 2. Building Construction Summary 11
INDEX OF FIGURES
Figure 1. Site Plan 2
Figure 2. Tentative Tract Map 4
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The Terraces Residential Development 1 December 3, 1997
Carlsbad, California SEC Project No. 2097024
INTRODUCTION
The Terraces is a proposed residential development to be located north of El Camino
Real and east of the proposed northward extension of College Boulevard, in the city of
Carlsbad, California. The project is bounded on the north and west by Sunny Creek Road
and on the east by open land and ranch land. Aqua Hedionda Creek runs approximately
500 feet north of Sunny Creek Road (see Figure I, Site Plan).
Due to the potential wildland fire exposure to the Terraces, the Carlsbad Fire Department
has requested a fire management plan be developed. Carlsbad Fire Department has
suggested that such safeguards as building separation (100 feet minimum) from the
native vegetation and replanting of native vegetation with less flammable plants be
provided. Due to requirements of wildlife agencies, replacement of natural vegetation is
not possible. Providing sufficient building separation from the wildland area is not practical
due to the land constraints of the project.
Russell W. Grosse Development Inc. has retained Schirmer Engineering Corporation
(SEC) to analyze the potential exposure posed by the urban wildland interface zone and
provide solutions to mitigate such exposure.
APPLICABLE CODES
The following codes and regulations were used to assist in preparing this report:
• Urban-Wildland Interace Code (UWIC), 1997 Edition
• California Fire Code (CFC), 1995 Edition
• Wildland/Urban Interface Planning and Construction
• San Diego County Wildland/Urban Standards
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PROJECT LOCATION ON USGS 7.5'
SAN LUIS REY QUADRANGLE
hadow Valley Center
847 Jamacha Road
El Caion, CA92019
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The Terraces Residential Development 3 December 3, 1997
Carlsbad, California SEC Project No. 2097024
PROJECT DESCRIPTION
The project will develop The Terraces, a gated development with 172 single family
detached homes and 28 affordable efficiency units, and 50 affordable multifamily
residential units (apartments), called The Apartments at Sunny Creek (Figure 2, Tentative
Tract Map).1 The single family component of the project (single family units and efficiency
units combined) proposes a density of 6.5 dwelling units per net developable acre (5.3
du/ac per gross acre); the project's multifamily component proposes a density of 22.9
dwelling units per net developable acre (22.9 du/ac per gross acre).
A European village architectural style is proposed for the single family residential portion
of the project and would feature tile roofing (different color mixes) and plaster walls. Four
two-story plans, offering three and four bedrooms, would be available, with units ranging
in size from 1,600 to 2,585 square feet. The minimum lot size would be 4,300 square feet,
with lots averaging 6,788 square feet. Twenty-eight of the plans would include 522 square
foot granny flats, which would feature separate entrances and self-contained living
spaces. These flats are part of the project's affordable housing element.
The multifamily affordable housing development would consist of a total of
50 apartments (12 studios, 12 1-bedroom units, 20 2-bedroom units, and 6 3-bedroom
units) in three separate apartment buildings. Buildings "A" and "C" would be three stories;
Building "B" would be two stories. One of the 2-bedroom units would be disabled
accessible. The units would range in size from 437 to 1,106 square feet.
Occupant entry into the complex would be via the access road, off "A" Street. Parking
spaces for a total of 103 vehicles would be provided, including four handicap spaces for
visitor-designated spaces. A 3,600 square feet, chain link-fenced and gated recreational
vehicle parking lot would be located across College Boulevard.
'The location of the multifamily affordable housing development may move towards the west based upon land
purchase negotiations. Either location should have no effect on the fire protection program developed.
AFFORDABLE UNITS
EL CAMINO REAL
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PUBUC UTILITIES AND DISTRICTS:
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_arr or ewu»a
.ctKsua uwn KHOOL saracr
_nrr or OUUM
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INDICATES UWT NUU8EH
INDICATES SHEET NUMSEH
INDICATES UNfT BOUNOART
INDICATES SHEET BOUNDARY
SOURCE: MANITOU ENGINEERir
FATIVE TRACT MAP FIGURE 2
The Terraces Residential Development 5 December 3, 1997
Carlsbad, California SEC Project No. 2097024
Along the Aqua Hedionda Creek a variety of native plant materials including live oak,
California sycamore, torrey pine, alder, and lemonade berry presently exist. The Aqua
Hedionda Creek flood plain located between the creek and the back of the Terraces
project will contain the inclusion of the proposed restoration efforts, containing coastal
sage scrub and mixed chaparral vegetation. The creek and floodway are located below
the Terraces project. Elevation differences are in the order of 90-100 feet.
GENERAL APPROACH
Due to mitigation actions associated with construction adjacent to the Aqua Hedionda
Creek, the slopes immediately adjacent to the project and the Aqua Hedionda Creek
floodway must be planted with natural vegatation such as coastal sage scrub and
southern mixed chaparral vegetation. Although aesthetically pleasing, and
environmentally preferred, this natural vegetation poses a potential wildland fire exposure
to the dwellings located within the Terraces.
To provide maximum protection to the Terraces, SEC is proposing the use of the
safeguards found within the newly published International Fire Code Institute Urban-
Wildland Interface Code (UWIC). From the UWIC a fire protection program has been
developed which will reduce the loss of property from a fire occurring with the urban-
wildland interface zone.
The UWIC was developed by the International Fire Code Institute (IFCI) with support from
Federal Emergency Management Agency Grant Program 1005-1, administered by the
California Governor's Office of Emergency Services through the Office of State Fire
Marshal. This code is the direct result of hazard mitigation meetings held after recent
devastating wildfires.
The drafting committee was chaired by Chief Ronney Coleman, California State Fire
Marshal. Other notable committee members include Malcolm Gramley of the United
The Terraces Residential Development 6 December 3, 1997
Carlsbad, California SEC Project No. 2097024
States Forest Service, and Gene Wolf of the Los Angeles County Fire Department. For
more than two years, the drafting committee worked diligently to develop the first draft
which was presented to the IFCI membership at the February 1996 International
Conference of Building Officials Code Development Committee Hearings in Sparks,
Nevada. Challenges to this first draft were then debated at IFCPs Annual Meeting in July
1996, in Long Beach, California. This work resulted in the first printing of the UWIC in
January of 1997.
The purpose of the UWIC is to establish minimum standards that prevent the loss of
structures, even if fire department intervention is absent.2 The UWIC provides prescription
requirements within Sections 1-6. In addition, appendices are provided for informational
or alternate design approaches.
The UWIC is unique in that Appendix II-D, Self-Defense Mechanism, provides the basis
and intent of the requirements found within the code. This appendix is intended to provide
background for situations where strict applications of the prescriptive requirements is not
feasible. The UWIC is considered a very conservative document as shown by the many
challenges to it's requirements during the code development process.
As with all performance-based engineering approaches, an objective must be established.
Then a fire scenario is predicted upon which the elements of the fire protection program
are developed.
Following is a presentation of the objective of the fire protection program, the chosen fire
scenario, and finally a detailed presentation of the elements of the fire protection program.
The objective of the fire protection program is to enhance structural survivability of the
structures within the project and to prevent horizontal propagation of a wildland fire. To
accomplish this objective, two goals must be achieved; ignition of the exterior of the
structures must be limited and flames must be prevented from penetrating into the
buildings resulting in interior fires.
: UWIC Appendix Il-D
The Terraces Residential Development 7 December 3, 1997
Carlsbad, California SEC Project No. 2097024
The most likely fire scenario is predicted to be a brush fire burning within the Aqua
Hedionda Creek Wildland area from the east to west propelled by Santa Ana wind
conditions. This scenario is typical of the major brush fire events which have occurred in
coastal southern California areas (such as the 1996 Harmony Grove fire).
California has a long history of catasphoric brush fires, the worst being the 1991
Oakland/Berkeley fire which destroyed 2900 structures. Although these fires have
occurred in various geographic and topographic areas, the factors contributing to urban-
wildland interface zone losses are consistent:
• Flammable roofing material
• Inadequate clearance between structures and fuel
• Extreme wind conditions (Foehn or Santa Ana winds)
• Poor access - narrow winding roads and driveways
• Inadequate water supplies
• Lack of modern firefighting equipment
The fire protection program has been specifically developed to eliminate or mitigate these
factors.
Structures exposed to an urban-wildland fire are subject to various conditions not found in
a typical structure fire. Burning embers are projected in front of the fire by the convection
column resulting in secondary ignitions. Eventually the flame front and resulting radiant
heat can expose the exterior of buildings. This radiation can cause ignition of the exterior
of the structure, or the combustible contents within the interior of the structure. Studies
show that the actual exposure of the building to the flame front of the fire is usually less
than six minutes.3 Exposure to other materials which can result in ignition of the structure
can vary based upon wind, topography, and fuel conditions.
31FCI Urban-Wildland Interface Code, Appendix II-D
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The Terraces Residential Development
Carlsbad, California
HAZARD SEVERITY
8 Decembers, 1997
SEC Project No. 2097024
The UWIC defines the degree of fire hazard severity based upon three variables:
• Critical Fire Weather Frequency
• Fuel Model
• Slope of Terrain Containing the Fuel
UWIC Table 502 Fire Hazard Severity, presents a tabular analysis of various hazard
classes based upon these factors. Once the fire hazard severity is determined, proper
construction, and defensible space requirements are found within UWIC Table 503.1
Ignition-Resistant Construction.
Homes located within the Terraces project are located at the top of a slope which
attaches to the wildland area along the Aqua Hedionda Creek at the bottom. The
distances from the back of the homes to the bottom of the slope are shown in Table 1,
Wildland/Structure Separation.
Table 1. Wildland/Structure Separation
Unit Number
70
71
72
73
74
75
76
77
78
133
134
135
136
137
160
161
Distance to Wildland
Area (ft.)
175
119
106
100
100
88
30
30
30
50
88
30
75
125
30
38
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The Terraces Residential Development
Carlsbad, California
Decembers, 1997
SEC Project No. 2097024
Unit Number
162
163
164
165
166
167
168
169
170
171
172
Distance to Wildland
Area (ft,)
50
50
63
63
63
63
38
30
38
50
30
A minimum distance of 30 feet will be provided between the back of the homes and the
wildland area as requested by the Carlsbad Fire Department. The slope will be planted
with vegetation selected from the Fuel Modification Plant List of the Wildland/Urban
Interface Planning and Construction Standards (see Appendix A). This vegetation is
typically fire resistive and drought tolerant.4
Between the bottom of the replanted slope and the Aqua Hedionda Creek itself, is the
creek's flood plain. The vegetation of the flood plain consists of coast sage scrub and
mixed chaparral vegetation. UWIC Appendix II-A Fire Danger Rating System, classifies
this as Fuel Model B, which is defined as a Medium Fuel. The terrain of the flood plain
slopes in a downward direction to the creek itself. Elevation change varies from 60 to 120
feet. Within the Aqua Hedionda Creek, a variety of natural plant materials including live
oak, California sycamore, torrey pine, alder and lemonade berry presently exist. UWIC
Appendix II-A classifies this as Fuel Model B or F, which are defined as a Medium Fuel.
With the addition of some plant material 3 to 8 inches in diameter, the fuel should be
considered Medium-Heavy Fuel. The width of the vegetation along the creek varies from
100 feet to 200 feet. Beyond the creek is cultivated agricultural areas.
The worst case fire scenario would be a fire occurring within the vegetation along the
creek and burning west, through the flood plain and up the slope towards the homes. The
4 Wildland/Urban Interface Planning and Construction Standards, page 7.
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The Terraces Residential Development 10 Decembers, 1997
Carlsbad, California SEC Project No. 2097024
severity of this fire would be based upon the vegetation within the flood plain/creek area,
both which are Medium Fuel. The replanted slope area, would then be considered
defensible space and would slow the progress of the fire due to the reduced flammability
of the replanted vegetation.
From UWIC Table 502, using greater than eight days of Critical Fire Weather per year,
Medium Fuel, and any percentage of slope, an extreme fire hazard is predicted. Note that
this classification does not account for the relatively "thin" width of the Aqua Hedionda
Creek and flood plain areas. Fires burning within these areas would be smaller in size and
severity based upon the limited size of the area.
FIRE PROTECTION PROGRAM
Building Construction
UWIC Table 503.1-Ignition Resistant Construction, prescribes construction type based
upon available water supply and the size of the defensible space. Given an extreme fire
hazard, conforming water supply, and nonconforming defensible space, Class 1 Ignition
Resistant Construction is required.
The structures (both single family dwellings and apartments) located along the
urban-wildland interface will comply with the requirements of UWIC for Class 1 Ignition
Resistant Construction (see Table 2 Building Construction Summary) except as follows:
• UWIC Sec. 505.10 requires all ventilation openings in exterior walls not to exceed 144
square inches in size. The numbers of such vents is not limited. Due to energy
conservation code requirements, the units will require two attic vent openings
252 square inches in size. As an alternate method, one quick response automatic
sprinkler will be provided within the attic area behind each vent. If radiant heat or
burning brands from a urban-wildland fire enter the attic space through the attic vents,
the sprinkler will control or extinguish the resulting fire.
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The Terraces Residential Development
Carlsbad, California
11 Decembers, 1997
SEC Project No. 2097024
Table 2. Building Construction Summary
Required
Class A roof covering (UWIC Sec. 504.2)
Noncombustion protection of eaves (UWIC
Sec. 504.3)
Gutters and downspouts shall
noncombustible (UWIC Sec. 504.4)
be
Exterior walls- noncombustible and one hour
rated fire resistive construction
(UWIC Sec. 504.5)
Appendages and projections shall be one-hour
rated fire resistive construction or heavy timber
(UWIC Sec. 504.7)
Exterior windows shall be tempered glass or
multilayer glazed panels
(UWIC Sec. 504.8)
Exterior doors shall be noncombustible or solid
core not less than 1 3/8 inch thick (exception
garage vehicle doors)
(UWIC Sec. 504.9)
Exterior ventilation openings shall not exceed
144 square inches each and covered with
noncombustible corrosive-resistant mesh with
openings not to exceed % inch (UWIC Sec.
504.10)
Provided
Class A roof covering
All eaves will be protected with 1 inch thick
stucco
All gutters and downspouts will be
noncombustible
7/8 inch stucco (noncombustible surface and
equivalent to one-hour rated)
Optional master bedroom decks will be coated
with 7/8 inch thick stucco
All windows will be dual paned glass
All doors shall be noncombustible or solid core
not less than 1 3/8 inch thick
Two attic vent openings 252 square inches in
size will be provided. The vents shall be
covered with approved noncombustible
corrosive-resistant mesh. In addition one quick
response sprinkler will be provided in the attic
area as an alternative approach
3 Requirements based upon UWIC Section 505, Class 1 Ignition-Resistant Construction.
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The Terraces Residential Development 12 December 3, 1997
Carlsbad, California SEC Project No. 2097024
Water Supply
Inadequate water supplies for manual fire fighting operations has been a contributing
factor in all major urban-wildland fires. Without adequate water flow and pressure, fire
fighters are unable to prewet potential fuel, or make attacks on flame fronts.
The water system serving the Terraces will be supplied by a 24 inch main in College
Boulevard. Preliminary hydraulic analysis provided by Wilson Engineering, indicates a flow
of approximately 10,000 gpm at a residual pressure of 100 psi is available at the
intersection of College Boulevard and "A" Street. This water supply is exceptional and
greatly exceeds the requirement of 1000 gpm at a residual pressure of 20 psi prescribed
in UWIC Sec. 404.5.
Automatic Sprinkler Protection
Automatic sprinklers will be provided inside all dwelling units which are located within 100
feet of the urban-wildland interface. The intent of the automatic sprinkler system is to
control or extinguish ignition of interior combustible furnishings or construction.
Fire Hydrants
Fire Hydrants will be placed throughout the Terraces in accordance with the spacing
requirements of the CFC and the Carlsbad Fire Department. Hydrant spacing will be a
maximum of 500 feet within the single family portion of the Terraces, and 300 feet within
the multifamily portion.
Fire Department Access
Primary fire department access to the Terraces will be on "A" Street which will connect to
the west side of College Boulevard. In addition, a secondary access which is located to
the south of "A" Street and connects to the north end of "B" Street will be provided. This
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The Terraces Residential Development 13 December 3, 1997
Carlsbad, California SEC Project No. 2097024
secondary route allows fire department access to the entire development (see attached
site development plan). This route could be used if primary access on "A" Street is
blocked by evacuating occupants. All roads within the Terraces will comply with UWIC and
Carlsbad Fire Department requirements (minimum width of 20 feet, with adequate turning
radius).
Defensible Space
A minimum of 30 feet will be provided between the homes and the wildland area. This
area will be planted with fire resistive vegetation. Trees located within the defensible
space will be separated in accordance with UWIC Section 604.4.
CONCLUSION
The fire protection program developed for the Terraces will provide ample fire department
access, an exceptional water supply, a minimum of 30 feet defensible space, fire resistive
construction, and interior automatic fire sprinklers.4 These fire safety features will provide
a level of fire protection which exceeds that provided by the suggested structure/wildland
separation (100 feet). In addition, the provided fire protection program exceeds the
requirements found within the UWIC.
Prepared by:
SCHIRMER ENGINEERING CORPORATION
Garner A. Palenske, P.E.
Engineering Manager
GAP/kc
1 For the units which are located within 100 feet of the urban-wildland interface.
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• APPENDIX A
FUEL MODIFICATION PLANT LIST
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APPENDIX
FUEL MODIFICATION PLANT LIST
BOTAJflC NAME
Abelia x grandiflora
Acacia redolens
Achiilea (millerfoliuui)
Achillea lomenlosa
Acooiuui decorum
Aeonium simsii
Agave (victoriae-rcginae)
Ajuga reptans
Alnus tliouibifolia
Aloe arborescens
Aloe aristata
Aloe brevifolia
Aptenia cordifolia
(x 'Red Apple')
Arbulus unedo
Arctostaphylos (edniundsii)
Arcloslaphylos
(x 'Greensphere')
Arctostaphylos hookeri
(Monterey Carpel)
' Arctoslaphylos
(Pacific Mist)
Arctostaphylos (uva-ursi)
Arclolheca calendula
Artemisia caucasica
Baccharis pilnlaris
(var. Pilularis "Twin Peaks 02")
Baccharis pilularis
(ssp. Consanguine*)
Baclylis glomerata
Baileya mnltiradiata
Bougajnvillea
(Spectabilis)
Braliea atmata
Bratea brandegeei
Braliea edulis
Bromus carinatus
Carissa macrocaipa.
Carpobrolus ckileosis
Caxpobrotus edulis
Ceanofhus gloriosus
COMMON NAME
Glossy AbeUa
Prostrate Acacia
Common Yarrow
Woolly Yarrow
Aeooium
ncn
ncn
Carpel Bugle
White Alder
Tree Alo«
ncn
ncn
Red Apple Aplenia
Strawberry Tree
Little Sur Manzanita
Greenshere Manzanila
(Greensphere)
Monlerey Carpet
(Manzanila)
Pacific Mist Manzanita
Bearbeny
Cape Weed
Caucasian Artemisia
Twin Peaks
Chaparral BJpom
Berber Orchard Grass
Desert Marigold
Bougainvillea
Mexican Blue Palm
(Blue Hesper Palm)
San Jose Hesper Palm
Guadalupe Palm
California Brome
Green Carpet (Natal Plum)
Sea Fig Ice Plant
Hottentot Fig Ice Plant
Point Reyes Ccanothus
TYPE
Scrub
Low Shrub
Low shrub
Low shrub
Ground cover
Ground cover
Ground cover
Ground cover
Tree
Shrub
Ground cover
Ground cover
Ground cover
Tree
Ground cover
Shrub
Low shrub
Ground cover
Ground cover
Ground cover
Ground cover
Ground cover
Shrub
Grass
Ground cover
Shrub
Palm
Palm
Palm
Grass
Ground cover/shrub
Ground cover
Ground cover
•' Shrub
KEMAJRKS
Low Dre retardance
Prune back afler flowering to
remove dried fire fuel
Prune back afler flowering lo
remove died fire fuel
Low maintenance
Poor on slopes
30-50' height
Highly invasive
High fire retardance
Slow to establish
Excellent drought tolerance
Semi-upright to 12"
Excellent drought
tolerance,spreading 4-6',
height to I'
Very low maintenance; takes
some foot traffic
Very low maintenance; takes
some foot traffic
Use only maJe plants
Drought tolerant
Drought tolerant
.*<
Fair-good drought tolerance,
spreads 12-18"
Not good on steep slopes
Excellent drought tolerance
10
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Ceanothus griseus
(Louis Edmunds)
Ceanothus griseus
(var. horizontals)
Cesnothus griseus
(var. horizontalis
Yankee Point)
Ccanolhus prostralus
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Ceanothus spinosus
Ceanothus vernicosus
Cerastiurn
(toiuentosum)
Ccralooia iiiqua
Ccrcidium floiidum
(microphylluni)
Cercis occidcntalis
Chrysanthemum
(leucanthemuui)
Cistus incanus
(Ssp. corsicus)
Cistus crispus
Cistus cyprius
Cistus hybridus
Cistus incanus
Cistus ladanifer
Cistus x purpureus
Cistus salviifolius
Comarostaphylis
(diversifolia)
Convolvulus
(cocomni)
Coprosma kirkii
Coprosma pumiia
Coreopsis lanceolala
Correa pnlchella
Cofoneastcr congcstus
(likiang)
Crassula Ovala
Crassula lactca
Crassula mullicova
Crassula tdragona
Crotoa Ctlifomiicus
Delosperma 'alba1
Distictis
(Guccinatoria
Dodonaea viscosa
Drosantlicmum
(floribundum)
Drosantlicmum
(Uispidum)
Louis Edmunds
(Ccanothus)
Carmcl Creqier
(Ccanollius)
Yankee Point
(Ceanolhus)
Squaw Carpel
(Ceanothus)
Green Bark Ceanothus
Wart-Stem Ceanothus
S no w- in -summer
Carob
Blue Palo Verde
Westenn Redbud
Oxeye Daisy
ncn
ncn
ncn
Whi(e Roctrosc
ncn
Brown-Eyed Rockrose
Orchid Rockrose
SageleafRockrose ,
Summer Holly
Bush Morning Glory
Creeping Coprosma
Prostrate Coprosma
Coreopsis
Australian Fuchsia
Likiang Cotoneaster
Jade Tree
ncn
ncn
nca
Caliform'a Crotoa
White (railing ice plant
Blood-Red Trumpet Viae
Hopseed Bush
Rosca Ice Plant
ncn
Shrub
Shrub
Shrub
Shrub
Shmb
Shrub
Ground cover/shrub
Tree
Tree
Shrub/tree
Ground cover
Shrub
Ground cover
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Ground cover/Shrub
Low shrub
Ground cover
Ground cover
Ground cover/vining
Shrub
Ground cover
Ground cover
Ground cover
Ground cover
Ground cover
Vine/climbing vine
Ground cover
Ground cover
semi-upright 12-18"
Excellent drought tolerance
2-3' tall
Excellent drought
tolerance, spreads 2-6'
While Dower color
Drought tolerant
Ornamental, flowering
White flower color
Subject to dieback alter 3-4-
years
Low Ore retardance
Ornamental flowering
12" height, 36" spread
Nol recommended for sleep
slopes
Drought tolerant
Not recommended for steep .,,
Slopes fi- .!•• (•:'•', •• .••!''.•
Drought tolerant
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Drosanlhemum (speciosuni)
Elaeagnus pungeos
Encelia farinosa
Eriogoaum (parvifolium)
Eriopliyllum (confertiflorum)
Escallania Species
Eschscholzia (californica)
Euonymus fociuaei
Feijoa sellowiana
Fragaria chiloensis
Gaillardia x grandiflora
Galenia pubescens
GalvezJa speciosa
Gazania hybrids
Gazania rigeiis (leucolaena)
Grendelia slricta
Hedera canariensis
Hedcra helix
Helianthetnum (uiutabiJe)
Helianthetnum (scopaiium)
Heteromeles (arbutifolia)
Hyperictun calycinum
Ibetis sempervirens
Iberis umbellatum
Isomeris arborea
Ivy hayesiana
Juglans species
Lampranthus
(auraatiacus)
Lampranthus Dlicaulis
Laniptantiras (spectabilis)
Lantana camara (cultivars)
Lantana (niontcvidensis)
Ligustrunijaponicum
LiiuouJtuu pectiiututii
Liuaoniuin p erezii
Lonicen Japooica (halliana)
Looiccra subspicaU
Lotus comicolatus
Lxjtus scoparius
Lnpihos nanns
Maltotiia aqaifolium
(Golden Abundance)
Mahonia
Malephora crocca
Malcpfiora luleola
Mettosideros cxcekus
Mimulus specides
Myoporum Tacincum'
Dcwflower
Stlverberry
BriUlebush
Sea Cliff Buckweliat
ncn
severaJ varieties
California Poppy
Winter Creeper Euonymus
Pineapple Guava
Wild Strawberry
(Sand Strayvberry)
Blankelflower
Busli Snapdragon
SouQi African Daisy
Trailing Gazania
Gum Plaal
Algerian Ivy
English Ivy
Sunrose
Rush Rose
Toyon
Aaron's-Beard
Edging Candytuft
Globe Candytuft
Bladderpod
Poverty Weed
Walnut
Busk Ice Plant
Redondo Creeper
Trailing Ice Plant
Yellow Sage
Trailing Lantana
Texas Privet
ncn
Sea Lavender
Hall's Japanese (honeysuckle)
Wild Honeysuckle
Bird's Foot Trefoil
Deerwecd
Sky Lupine
Golden Abundance
(Oregon Grape).
Nevin Mahonia
Ice Plant
Trailing Ice Plant
New Zealand (Christinas Tree)
Monkeyflower
Ground cover
Shrub
Shrub
Ground cover/shrub
Shnib
Shrub
Flower
Ground cover
Shnib/tree
Ground cover
Ground cover
Ground cover
Shrub
Ground cover
Ground cover
Ground cover
Ground cover/vine
Ground cover/Vine
Ground cover/shrub
Shrub
Shrub
Shrub
Ground cover
Ground cover
Shrub
Ground cover
Tree
Ground cover
Ground cover
Ground cover
Shrub
Shrub
Shrub
Ground cover
Shrub
Viniflg Shrub
Vining shrub
Ground cover
Shrub
Flowering annual
Shrub
Shrub
Ground cover
Ground Cover
Tree
Flower
Shrub
Drought tolerant
Drought tolerant
Drought tolerant
Red/pink flower color
Ornamental flower
Red flowers
Slrougly recommended
creeping varieties
Green foliage
Poor drought tolerance, very
spreading, 12-15"
good drought tolerance, 6-12"
Small leaves, drought tolerant
May be trimmed up to tree
form
Good-very good drought
tolerance
While Cower color
Ornamental flowering
Drought tolerant
Erosion control, fast growth,
spreads
Water deeply infrequently
Frost tender
White flower color
Drought and salt tolerant.
Perennial
Creamy white flowers
Green Lush look
Bright yellow flowers
# ellow flowers
Reddish yellow flowers
Yellow Flowers
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Myoporum debile
Myoponim insulare
Myopotum laclum
Myoporum parvifolimn
Nerium oleander
Molina longifolia
Oenolhcra hookeri
Ophiopogonjapooicus
Opuntia species
Osteospcnnum (fruticosum)
Parkinsooia aculeala
Pelargonium petlalum
Pettstetnon species
Phyla nodLDora
Piltosporum undulatum
Plantago sempetvirens
Plalanus racemosa
Portulacaria afra
Potentilla (labemaemontanii)
Prunus caroliniana
Pninus lyonii
Punica granatum
PyracanGia species
Quercus agrifolia
Quercus dumosa
Quercus suber
Quercus engelniannii
Rhamnns alaternus
Rhamnus crocca
Rhamnus crocet ssp.
(ilicifolia)
Rhamnus crocea ssp.
(insula)
Rhamnus califomica
Rhapluolepis species
Rhus integrifolia
Rhuslancea
Rhuslaurina
Rhosovata
Ribcs vibumlfoliuin
Rouincya coulteri
Romneya coulteri
(white cloud)
Rosmarinns officinalis
Salvia columbariae
Salvia sonomeosis
Sambncus mextcana
Santolina (chamaccyparissus)
Santolina virens
Schinus molle
Schinus (lercbinthifolius)
ucn
Boobyalla
ucu
ncn
Oleander
Mexican Crasstree
Caiif. Evening Primrose
Mondo Grass
Prickly Pear, Cholla
Trailing African Daisy
Mexican Palo Verde
Ivy Geranium
Bean! Tongue
Lippia
Victorian Box
Evergreen Plantain
California Sycamore
Elephant's Food
Spring Cinquefoil
Carolina Cherry Laurel
Catalina Cherry
Pomegranate
Firethorn
Coast Live Oak
California Scrub Oak
Cork Oak
Engelmann Oak
Italian Buckthorn
Redberry
HoUyleafRedbcrry
Santo Thomas Redberry
CoQbeberry
Indian Hawthorn
Lemonade Berry
African Sumac
Laurel Sumac
Sugarbush
Evergreen Currant
Matilija Poppy
White cloud
(Matilija Poppy)
Rosemary
Chia
Creeping Sage
Mexican Elderberry
Lavender Cotton
Green Lavender Cotton
California Pepper Tree
Brazilian Pepper Tree
Shrub
Shrub
Shrub/tree
Ground cover
Shrub
Shrub
Flower
Ground cover
Cactus
Ground cover
Tree
Ground cover
Shrub
Ground cover
Tree
Ground cover
Tree
Shrub
Ground cover
Shrub/tree
Shrub/tree
Shrub/tree
Shrub
Tree
Shrub
Tree
Tree
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Tree
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Shrub
Ground cover
Tree
Ground cover
Shrub
Tree
Tree
Bxcllcnl along seacoasl
Subject to leaf gall in large
groupings
Drought tolerant
Drought tolerant
Yellow (lowers
Grey leaves, drought tolerant
White Dower color
White flower color
Oak woodland
Valuable soil binder
Open structure
Intricate Branching
Green leaves, drought
tolerant
May be trimmed up lo tree
form
25' height
Large showy white flowers
•EJrought tolerant
30' height
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Sedum acre
Sedum album
Sedum confusiuu
Sedum lineare
Sedwn x rubrolinctum
Senecio serpens
Simmondsia cbinensis
Sisyrinchium bcllum
Slipa lepida
Stipa pulchra
Stipa species
Taoiarix apbylla
Teucrium chamaedrys
Tecoomaria capeusis
Thynius serpyllum
Trachelospermum (jasminoides)
Trichostema lanatum
Trifolium fragifemm
(O'Connor's)
Trifolium hirtum
(Hyron)
Umbeiliularia califomica
Verbena peruviana
Verbena species
Vinca Major
Vinca minor
Vulpia niyuros (Zorro)
Wasliinglonia Glifera
Washiugtonia robusta
Yucca species
Zauschneria califoraica
Zizyphusjujuba
Goldunoss Sedum
Green stonecrop
ncn
ncn
Pork and Beans
ncn
Jojoba, Goatnul
Blue-eyed grass
Foothill Needlegrass
Purple needlegrass
Needlegrass, Slipa
Atliel
Germander
Cape Honeysuckle
Lemon Thyme
Star Jasmine
Woolly Blus-Curls
O'Connor's Legume
Hyron Rose Clover
California Laurel
ncn
Verbena
Periwinkle
Dwarf Periwinkle
Zorro Annual Fescue
California Fan Palm
Mexican Fan Palm
Yucca
California Fushsia
Chinese Jujuba
Ground cover
Ground cover
Ground cover
Ground cover
Ground cover
Ground cover
Shrub
Ground cover
Ground cover
Ground cover
Ground cover
Tree
Ground cover
Ground cover
Ground cover
Shrub
Shrub
Ground cover
Ground cover
Tree
Ground cover
Ground cover
Ground cover
Ground cover
Grass
Palm
Palm
Shrub
Shrub
Tree
Not recommeuded on. steep
slopes
Drought tolerant
Perennial bunch grass
Perennial bunch grass
Drought tolerant
Invasive roots
Vine
White flower color
Drought tolerant
Ornamental flowering
Very spreading
Very spreading
Old Crouds must be removed
to eliminate (he Ore hazard
Old fronds must be removed
to eliminate the Ore hazard
Drought tolerant
Drought and salt tolerant,
deep rooted, erosion control
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