Tree planting, crown spacing and pruning requirements within the 30‑foot zone

Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:

• CWUIC § 603.4.1 Medium relevance — show source text

  603.4.1 Shrubs. All new plantings of shrubs shall comply with the following: 1. Shrubs shall not exceed 6 feet (1829 mm) in height. 2. Groupings of shrubs are limited to a maximum aggregate diameter of 10 feet (3048 mm). 3. Shrub groupings shall be separated from other groupings a minimum of 15 feet (4572 mm). 4. Shrub groupings shall be separated from structures a minimum of 30 feet (9144 mm). 5. Where shrubs are located below or within a tree’s drip line, the lowest tree branch shall be a minimum of three times the height of the understory shrubs or 10 feet (3048 mm), whichever is greater.

  603.4.2 Trees. Trees shall be managed as follows within the 30-foot zone (9144 mm) of a structure: 1. New trees shall be planted and maintained so that the tree’s drip line at maturity is a minimum of 10 feet (3048 mm) from any combustible structure. 2. The horizontal distance between crowns of new trees and crowns of adjacent trees shall not be less than 10 feet (3048 mm). 3. Existing trees shall be trimmed to provide a minimum separation of 10 feet (3048 mm) away from chimney and stovepipe outlets per California Code of Regulations, Title 14, Section 1299.03.

  603.4.2.1 Nonfire-smart vegetation. New trees not classified as fire-smart vegetation, such as conifers, palms, pepper trees and eucalyptus species, shall be permitted provided the tree is planted and maintained in accordance with one of the following: 1. The tree is planted so that the tree’s drip line at maturity is a minimum of 30 feet (9144 mm) from an applicable building. 2. The tree is planted so that the tree’s drip line at maturity is a minimum of 10 feet (3048 mm) from any combustible struc- ture, and is well pruned and maintained so as not to form a means of rapidly transmitting fire from other nearby vegetation to the structure or from the structure to nearby vegetation or to interrupt the advance of embers toward a

  structure.

  6-4 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  FIRE PROTECTION REQUIREMENTS

  SECTION 604—MAINTENANCE OF DEFENSIBLE SPACE

  604.1 General. Hazardous vegetation and fuels shall be managed to reduce the severity of potential exterior wildfire exposure to build- ings and to reduce the risk of fire spreading to buildings as required by applicable laws and regulations.

  Defensible space shall be managed around all buildings and structures in State Responsibility Areas (SRA) as required in Public Resources Code 4291.

  604.2 Application. Buildings and structures located in the following areas shall maintain the required hazardous vegetation and fuel management: 1. All unincorporated lands designated as a State Responsibility Area (SRA). 2. Land designated as a Very High Fire Hazard Severity Zone by a city or local agency. 3. Land designated in a city or local agency ordinance as a wildland-urban interface (WUI) area.

• California Wildland-Urban Interface Code Medium relevance — show source text

  
  attractive open branching pattern,
  OK in full sun.|1‐3, 7‐14,
  18, 19| |Cornus kousa|Kousa Dogwood|D|25 h|No|Needs ample water, big multi‐stem
  shrub can be trained to a tree, white
  flowers.|3‐9, 14, 15,
  18, 19| |Crateagus
  phaenopyrum|Washington Thorn|D|25 h
  20 s|—|Orange red fall foliage, shiny red
  fruit, light open limb structure, least
  susceptible to fireblight.|1‐11, 14‐17| |Garrya elliptica|Coast Silktassel|E|25 h|Yes|California native, fire resistance
  favorable, graceful yellowish/green
  catkins 3‐inches to 8‐inches long on
  males.|5‐9, 14‐21| |Lagerstroemia x faueri
  cultivars with Indian
  names|Crape Myrtle_(cultivar_
  mentioned w/ Indian
  names are resistant to
  powdery mildew)|D|25 h
  25 s|Yes|Attracts birds, plant in full sun,
  various flower colors available, white,
  red, pink, purple.|7‐9, 12‐14,
  18‐21| |Laurus saratoga|Saratoga Laurel|E|25 h|—|Compact erect tree, takes pruning
  well, needs good drainage.|5‐9, 12‐24| |Sorbus aucuparia|European Mountain
  Ash|E|30 h 3
  20 s|—|Stands winter cold, strong winds, low
  humidity and extreme heat, attractive
  to birds, bright fruit, clustered white
  flowers.|1‐10, 14‐17| |Styrax japonica|Japanese Snowdrop
  Tree, Japanese
  Snowbell|D|30 h 3|No|Needs well drained soil, full sun or
  part shade, plenty of water. Prune to
  control shape, tends to be shrubby if
  lower branches left.|3‐10, 14‐21| |Syringa reticulata|Japanese Tree Lilac|D|30 h 3|—|Large shrub easily trained as
  single‐stemmed tree, useful as small
  shade and street tree, white showy
  flowers in spring.|1‐12, 14‐16|

  1 Plant Matrix for North Valley Division (Shasta, Tehama, Glenn, Butte) (Zones 1, 7, 8,9), Sierra Division (Sutter, Yuba, Nevada, Sierra, Placer, El Dorado) (Zones 1, 7, 8, 9) and Sacramento Division (Yolo, Colusa, Solano) (Zones 7, 8, 9, 14). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  2022 – 2023 B−10

  Appendix B: Electric and Gas Service Documents

  Table B-5 Plant Matrix for Diablo, Mission, and East Bay Divisions [1]

• CWUIC § 603.2 Medium relevance — show source text

  603.2 Application. All new plantings of vegetation in State Responsibility Area (SRA) and Local Responsibility Areas (LRA) designated as a Fire Hazard Severity Zone shall comply with Sections 603.3 through 603.4.2.1.

  603.3 Landscape plans. Landscape plans shall be provided when required by the code official. The landscape plan shall include devel- opment and maintenance requirements for the vegetation management zone adjacent to structures and roadways, and provide significant fire hazard reduction benefits for public and firefighting safety.

  603.3.1 Contents. Landscape plans shall contain the following: 1. Delineation of the 30-foot (9144 mm) and 100-foot (30 480 mm) fuel management zones from all structures. 2. Identification of existing vegetation to remain and proposed new vegetation. 3. Identification of irrigated areas. 4. A plant legend with both botanical and common names, and identification of all plant material symbols. 5. Identification of ground coverings within the 30-foot (9144 mm) zone.

  603.4 Vegetation. All new vegetation shall be fire-smart vegetation in accordance with this section.

  Exception: Trees classified as nonfire-smart vegetation complying with Section 603.4.2.1.

  To be considered fire-smart vegetation, vegetation must meet at least one of the following: 1. Be identified as fire-smart vegetation in an approved book, journal or listing from an approved organization. 2. Be identified as fire-smart vegetation by a licensed landscape architect with supporting justification. 3. Plants considered fire-smart vegetation and approved by the local enforcing agency.

  603.4.1 Shrubs. All new plantings of shrubs shall comply with the following: 1. Shrubs shall not exceed 6 feet (1829 mm) in height. 2. Groupings of shrubs are limited to a maximum aggregate diameter of 10 feet (3048 mm). 3. Shrub groupings shall be separated from other groupings a minimum of 15 feet (4572 mm). 4. Shrub groupings shall be separated from structures a minimum of 30 feet (9144 mm). 5. Where shrubs are located below or within a tree’s drip line, the lowest tree branch shall be a minimum of three times the height of the understory shrubs or 10 feet (3048 mm), whichever is greater.

  603.4.2 Trees. Trees shall be managed as follows within the 30-foot zone (9144 mm) of a structure: 1. New trees shall be planted and maintained so that the tree’s drip line at maturity is a minimum of 10 feet (3048 mm) from any combustible structure. 2. The horizontal distance between crowns of new trees and crowns of adjacent trees shall not be less than 10 feet (3048 mm). 3. Existing trees shall be trimmed to provide a minimum separation of 10 feet (3048 mm) away from chimney and stovepipe outlets per California Code of Regulations, Title 14, Section 1299.03.

• California Wildland-Urban Interface Code Medium relevance — show source text

  14‐19| |Amelanchier alnifolia|Mountain
  Serviceberry|D|20 h|—|Suited to mountainous parts of the
  west, attractive foliage changes color.|1‐6, 15, 16,
  17| |Callistemon citrinus|Lemon Bottlebrush|E|25 h|Yes|Favorable fire resistance, attracts
  hummingbirds, shrub easily trained
  to a tree, it is quite frost sensitive.|8, 9, 12‐24| |Cercis occidentalis|Western Redbud|D|25 h|Yes|California native, attractive changing
  flower and foliage color, is easily
  killed by over watering.|2‐24| |Cotinus coggygria
  prupurea_|Smoke Tree|D|25 h|—|Branches droop but resist breakage,<br>full sun, dramatic puffs of purple to<br>lavender from fading flowers.|1‐24| |_Crataegus laevigata_|English Hawthorn|D|25 h<br>15 s|—|Thorny branches, need pruning to<br>thin out excess twiggy growth, bright<br>rose to red flowers.|1‐11, 14‐17| |_Eriobotrya deflexa_<br>_coppertone'|Bronze Loquat|E|25 h|No|Shrubby, easily trained to a tree, new
  growth is copper for long time before
  turning green.|8‐24| |Leptospermum
  laevigatum|Australian Tea Tree|E|30 h 3
  30 s|Yes|Grows best near the coast, flowers in
  spring, needs full sun, it is quite frost
  sensitive.|14‐24| |Myoporum insulare|Myoporum|E|30 h 3
  20 s|—|Fire resistant, takes full sun, tough,
  fast growing, it is quite frost sensitive.|8, 9, 15‐17,
  19‐24| |Styrax japonica|Japanese Snowdrop
  Tree, Japanese
  Snowbell|D|30 h 3|No|Needs well‐drained soil, full sun or
  part shade, plenty of water, prune to
  control shape, tends to be shrubby if
  lower branches left.|3‐10, 14‐21|

  1 Plant Matrix for North Coast (counties Humboldt, Mendocino, Lake, Sonoma) (Zones 1, 2, 14, 15, 17) and North Bay Division (counties Napa, Marin) (Zones 7, 14, 15, 16, 17). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  PG&E-Prohibited Trees

  Applicants must not plant the trees listed in Table B-7, “Do Not Plant These Trees Under or Within 15 Feet of Overhead Power Lines,” under or within 15 feet of overhead power lines. When mature, these trees affect PG&E’s ability to provide and maintain safe and reliable service. Many species of trees are not appropriate for confined spaces under electric lines, although they may be appropriate for other locations within a development or building site.

• California Wildland-Urban Interface Code Medium relevance — show source text

  Botanical Name Genus and Species	Common Name	Evergreen vs. Deciduous	Height and Spread (in feet)	Drought Tolerant	Special Considerations	Climate Zones 2
  Acer griseum	Paperbark Maple	D	25 h	No	Late to leaf out in spring, narrow rounded crown, brilliant red fall color.	1‐9, 14‐21
  Crateagus phaenopyrum	Washington Thorn	D	25 h 20 s	—	Orange red fall foliage, shiny red fruit, light open limb structure, least susceptible to fireblight.	1‐11, 14‐17
  Eriobotrya deflexa `coppertone'	Bronze Loquat	E	25 h	No	Shrubby, easily trained to a tree, new growth is copper for long time before turning green.	8‐24
  Laurus saratoga	Saratoga Laurel	E	25 h	—	Compact erect tree, takes pruning well, needs good drainage.	5‐9, 12‐24
  Ligustrum ovalifolium	California Privet	semi‐ deciduous	15 h	—	Inexpensive hedge plant, takes pruning well.	4‐24
  Malus floribunda adams', robinson'	Crabapple	D	25 h 30 s	—	Attracts birds and bees, good disease resistance,several cultivars to choose from.	1‐11, 14‐21
  Myoporum insulare	Myoporum	E	30 h3 20 s	—	Fire resistant, takes full sun, it is quite frost sensitive.	8, 9, 15‐17, 19‐24
  Myrica californica	Pacific Wax‐myrtle	E	25 h	Yes	California native, fire resistance favorable.	4, 5, 6, 14‐17, 20‐24
  Olea europaea `Swan Hill'	Fruitless Olive	E	30 h3 25 s	—	Does well in areas with hot dry summers, full sun, withstands heavy pruning.	8, 9, 11‐24
  Pittosporum tobira	Tobira	E	25 h	Yes	Small tree.

• California Wildland-Urban Interface Code Medium relevance — show source text

  prune to
  control shape, tends to be shrubby if
  lower branches left.|3‐10, 14‐21|

  1 Plant Matrix for Diablo Division (Alameda, Contra Costa) (Zones 15, 16, 17), Mission Division (Alameda) (Zones, 7, 14, 15) and East Bay Division (Contra Costa) (Zones 7, 14, 15, 16, 17). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  B−11 2022 – 2023

  Appendix B: Electric and Gas Service Documents

  Table B-6 Plant Matrix for North Coast and North Bay Divisions [1]

  Botanical Name Genus and Species	Common Name	Evergreen vs. Deciduous	Height and Spread (in feet)	Drought Tolerant	Special Considerations	Climate Zones 2
  Acer truncatum	“Truncatum” Maple	D	20 h	No	Adaptable tree, leaves are purplish red, summer green, dark purple in autumn.	1‐9, 14‐23
  Aesculus californica	California Buckeye	D	25 h needs room, very wide spreading	Yes	California native, grows best in cool, coastal foothills.	4‐7, 14‐19
  Amelanchier alnifolia	Mountain Serviceberry	D	20 h	—	Suited to mountainous parts of the west, attractive foliage changes color.	1‐6, 15, 16, 17
  Callistemon citrinus	Lemon Bottlebrush	E	25 h	Yes	Favorable fire resistance, attracts hummingbirds, shrub easily trained to a tree, it is quite frost sensitive.	8, 9, 12‐24
  Cercis occidentalis	Western Redbud	D	25 h	Yes	California native, attractive changing flower and foliage color, is easily killed by over watering.	2‐24
  Cotinus coggygria `prupurea	Smoke Tree	D	25 h	—	Branches droop but resist breakage, full sun, dramatic puffs of purple to lavender from fading flowers.	1‐24
  Crataegus laevigata	English Hawthorn	D	25 h 15 s	—	Thorny branches, need pruning to thin out excess twiggy growth, bright rose to red flowers.	1‐11, 14‐17
  Eriobotrya deflexa `coppertone'	Bronze Loquat	E	25 h	No	Shrubby, easily trained to a tree, new growth is copper for long time before turning green.	8‐24
  Leptospermum laevigatum	Australian Tea Tree	E	30 h 3 30 s	Yes	Grows best near the coast, flowers in spring,

• California Wildland-Urban Interface Code Medium relevance — show source text

  strong winds, low
  humidity and extreme heat, attractive
  to birds, bright fruit, clustered white
  flowers.|1‐10, 14‐17| |Styrax japonica|Japanese Snowdrop
  Tree, Japanese
  Snowbell|D|30 h 3|No|Needs well drained soil, full sun or
  part shade, plenty of water. Prune to
  control shape, tends to be shrubby if
  lower branches left.|3‐10, 14‐21| |Syringa reticulata|Japanese Tree Lilac|D|30 h 3|—|Large shrub easily trained as
  single‐stemmed tree, useful as small
  shade and street tree, white showy
  flowers in spring.|1‐12, 14‐16|

  1 Plant Matrix for North Valley Division (Shasta, Tehama, Glenn, Butte) (Zones 1, 7, 8,9), Sierra Division (Sutter, Yuba, Nevada, Sierra, Placer, El Dorado) (Zones 1, 7, 8, 9) and Sacramento Division (Yolo, Colusa, Solano) (Zones 7, 8, 9, 14). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  2022 – 2023 B−10

  Appendix B: Electric and Gas Service Documents

  Table B-5 Plant Matrix for Diablo, Mission, and East Bay Divisions [1]

  Botanical Name Genus and Species	Common Name	Evergreen vs. Deciduous	Height and Spread (in feet)	Drought Tolerant	Special Considerations	Climate Zones 2
  Aesculus californica	California Buckeye	D	25 h needs room, very wide spreading	Yes	California native, grows best in cool, coastal foothills.	4‐7, 14‐19
  Acer truncatum	“Truncatum” Maple	D	20 h	No	Adaptable tree, leaves are purplish red, summer green, dark purple in autumn.	1‐9, 14‐23
  Cercis canadensis	Eastern Redbud	D	25‐35 h 3	No	Small rosy pink flowers in early spring, is easily killed by over‐watering.	1‐3, 7‐20
  Crateagus phaenopyrum	Washington Thorn	D	25 h 20 s	—	Orange red fall foliage, shiny red fruit, light open limb structure, least susceptible to fireblight.	1‐11, 14‐17
  Laurus saratoga	Saratoga Laurel	E	25 h	—	Compact erect tree, takes pruning well, needs good drainage.	5‐9, 12‐24
  Ligustrum ovalifolium	California Privet	semi‐ deciduous	15 h	—	Inexpensive hedge plant, takes pruning well.

• California Wildland-Urban Interface Code Medium relevance — show source text

  easily trained to a tree, new
  growth is copper for long time before
  turning green.|8‐24| |Laurus saratoga|Saratoga Laurel|E|25 h|—|Compact erect tree, takes pruning well,
  needs good drainage.|5‐9, 12‐24| |Ligustrum ovalifolium|California Privet|semi‐
  deciduous|15 h|—|Inexpensive hedge plant, takes pruning
  well.|4‐24| |Malus floribunda
  adams', robinson'|Crabapple|D|25 h
  30 s|—|Attracts birds and bees, good disease
  resistance,several cultivars to choose
  from.|1‐11, 14‐21| |Myoporum insulare|Myoporum|E|30 h3
  20 s|—|Fire resistant, takes full sun, it is quite
  frost sensitive.|8, 9, 15‐17,
  19‐24| |Myrica californica|Pacific Wax‐myrtle|E|25 h|Yes|California native, fire resistance
  favorable.|4, 5, 6,
  14‐17,
  20‐24| |Olea europaea Swan_<br>_Hill'_|Fruitless Olive|E|30 h3<br>25 s|—|Does well in areas with hot dry<br>summers, full sun, withstands heavy<br>pruning.|8, 9, 11‐24| |_Pittosporum tobira_|Tobira|E|25 h|Yes|Small tree. Rarely grows to 30 feet,<br>favorable fire resistance, takes pruning<br>well, full sun or partial shade, clusters<br>of creamy white flowers in spring.|8‐17, 19‐24| |_Prunus cerasifera_<br>_krauter vesuvious'
  thundercloud' and_<br>_newport'|Flowering Plum|E|18 h
  12 s|—|Profuse fragrant pink flowers early
  spring, leaves purple/black, no or little
  fruit,several cultivars to choose from.|2‐22| |Tristania laurina
  `Elegans'|Elegant Brisbane Box|E|25 h|No|Can be trained to be a single or
  multi‐stemmed trunk, excellent for
  screen and boundary planting.|15‐18,
  19‐24|

  1 Plant Matrix for San Jose Division (Santa Clara) (Zones 15, 16, 17), Central Cost Division (Santa Cruz, San Benito, Monterey) (Zones 7, 14, 15, 16, 17) and Los Padres Division (San Luis Obispo, Santa Barbara) (Zones 2, 3, 7, 14, 15, 16, 17, 18, 23, 24). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  B−9 2022 – 2023

  Appendix B: Electric and Gas Service Documents

  Table B-4 Plant Matrix for North Valley, Sierra, and Sacramento Divisions [1]

• California Wildland-Urban Interface Code Medium relevance — show source text

  
  soil should be well drained, prune to
  shape.|2‐21| |Lagerstroemia x faueri
  cultivars with Indian
  names|Crape Myrtle_(cultivar_
  mentioned w/ Indian
  names are resistant to
  powdery mildew)|D|25 h
  25 s|Yes|Attracts birds, plant in full sun,
  various flower colors available, white,
  red, pink, purple.|7‐9, 12‐14,
  18‐21| |Laurus saratoga|Saratoga Laurel|E|25 h|—|Compact erect tree, takes pruning
  well, needs good drainage.|5‐9, 12‐24| |Pittosporum tobira|Tobira|E|15 h|Yes|Small tree. Rarely grows to 30 feet,
  favorable fire resistance, takes
  pruning well, full sun or partial shade,
  clusters of creamy white flowers in
  spring.|8‐24| |Prunus cerasifera
  krauter vesuvious'_<br>_thundercloud' and
  `newport'|Flowering Plum|E|18 h
  12 s|—|Profuse fragrant pink flowers early
  spring, leaves purple/black, no or
  little fruit,several cultivars to choose
  from.|2‐22| |Syringa reticulata|Japanese Tree Lilac|D|30 h 3|—|Large shrub easily trained as
  single‐stemmed tree, useful as small
  shade and street tree, showy white
  flowers in spring.|1‐12, 14‐16|

  1 Plant Matrix for Stockton Division (Amador, Calaveras, San Joaquin, Alpine) (Zones 7, 8, 9, 14), Yosemite Division (Stanislaus, Merced, Tuolumne, Mariposa, Madera) (Zones 1, 7, 8, 9), Fresno Division (Fresno, Kings) (Zones 1, 7, 8, 9) and Kern Division (Kern)( Zones 1, 2, 7, 8, 9). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  B−7 2022 – 2023

  Appendix B: Electric and Gas Service Documents

  Table B-2 Plant Matrix for San Francisco, Peninsula, and DeAnza Divisions [1]

  Botanical Name Genus and Species	Common Name	Evergreen vs. Deciduous	Height and Spread (in feet)	Drought Tolerant	Special Considerations	Climate Zones 2
  Acer griseum	Paperbark Maple	D	25 h	No	Late to leaf out in spring, narrow rounded crown, brilliant red fall color.	1‐9, 14‐21
  Arbutus unedo	Strawberry Tree	E	35 h 3	—	Rarely exceeds 15‐20 feet in coastal areas, fire resistance favorable, hanging pink/red flowers,

• California Wildland-Urban Interface Code Medium relevance — show source text

  takes high summer
  heat. Can be multi‐stemmed or
  trained to one stem tree. Good
  screen.|8, 9, 12‐24| |Prunus cerasifera
  krauter vesuvious'_<br>_thundercloud' and
  newport'_|Flowering Plum|E|18 h<br>12 s|—|Profuse fragrant pink flowers early<br>spring, leaves purple/black, no or<br>little fruit,_several cultivars to choose_<br>_from._|2‐22| |_Prunus serrulata_<br>_Kwanzan'|Flowering Cherry|D|25 h|—|Spectacular spring flowers, needs
  moist protected site, good soil
  drainage and full sun.|2‐7, 14‐20|

  1 Plant Matrix for San Francisco Division (San Francisco) (Zone 17), Peninsula Division (San Mateo) (Zones 14, 15, 16, 17) and De Anza Division (Santa Clara) (Zones 15, 16, 17). 2 Refer to the climate zone map in Sunset Western Garden Book for the climate zone in your area. 3 Trees referenced as growing to 30 feet (or more) at maturity generally do not reach their maximum height except under optimum growing conditions.

  2022 – 2023 B−8

  Appendix B: Electric and Gas Service Documents

  Table B-3 Plant Matrix for San Jose, Central Coast, and Los Padres Divisions [1]

  Botanical Name Genus and Species	Common Name	Evergreen vs. Deciduous	Height and Spread (in feet)	Drought Tolerant	Special Considerations	Climate Zones 2
  Acer griseum	Paperbark Maple	D	25 h	No	Late to leaf out in spring, narrow rounded crown, brilliant red fall color.	1‐9, 14‐21
  Crateagus phaenopyrum	Washington Thorn	D	25 h 20 s	—	Orange red fall foliage, shiny red fruit, light open limb structure, least susceptible to fireblight.	1‐11, 14‐17
  Eriobotrya deflexa `coppertone'	Bronze Loquat	E	25 h	No	Shrubby, easily trained to a tree, new growth is copper for long time before turning green.	8‐24
  Laurus saratoga	Saratoga Laurel	E	25 h	—	Compact erect tree, takes pruning well, needs good drainage.	5‐9, 12‐24
  Ligustrum ovalifolium	California Privet	semi‐ deciduous	15 h	—	Inexpensive hedge plant, takes pruning well.	4‐24
  Malus floribunda adams', robinson'	Crabapple	D	25 h 30 s	—	Attracts birds and bees, good disease resistance,several cultivars to choose from.	1‐11,

• CWUIC § 12.2.1 Medium relevance — show source text

  Values shown are for short-term loading due to wind or seismic
  loading. Walls resisting seismic loads shall be subject to the limitations in Section 12.2.1 of ASCE 7. Values shown shall be reduced 25 percent for normal loading.
  b. Applies to fastening at studs, top and bottom plates and blocking.
  c. Except as noted, shear values are based on a maximum framing spacing of 16 inches on center.
  d. Maximum framing spacing of 24 inches on center.
  e. All edges are blocked, and edge fastening is provided at all supports and all panel edges.
  f. Staples shall have a minimum crown width of7/16 inch, measured outside the legs, and shall be installed with their crowns parallel to the long dimension of the framing
  members.
  g. Staples for the attachment of gypsum lath and woven-wire lath shall have a minimum crown width of3/4 inch, measured outside the legs.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per foot = 14.5939 N/m.
  a. These shear walls shall not be used to resist loads imposed by masonry or concrete walls (see AWC SDPWS). Values shown are for short-term loading due to wind or seismic
  loading. Walls resisting seismic loads shall be subject to the limitations in Section 12.2.1 of ASCE 7. Values shown shall be reduced 25 percent for normal loading.
  b. Applies to fastening at studs, top and bottom plates and blocking.
  c. Except as noted, shear values are based on a maximum framing spacing of 16 inches on center.
  d. Maximum framing spacing of 24 inches on center.
  e. All edges are blocked, and edge fastening is provided at all supports and all panel edges.
  f. Staples shall have a minimum crown width of7/16 inch, measured outside the legs, and shall be installed with their crowns parallel to the long dimension of the framing
  members.
  g. Staples for the attachment of gypsum lath and woven-wire lath shall have a minimum crown width of3/4 inch, measured outside the legs.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per foot = 14.5939 N/m.
  a. These shear walls shall not be used to resist loads imposed by masonry or concrete walls (see AWC SDPWS). Values shown are for short-term loading due to wind or seismic
  loading. Walls resisting seismic loads shall be subject to the limitations in Section 12.2.1 of ASCE 7. Values shown shall be reduced 25 percent for normal loading.
  b. Applies to fastening at studs, top and bottom plates and blocking.
  c. Except as noted, shear values are based on a maximum framing spacing of 16 inches on center.
  d. Maximum framing spacing of 24 inches on center.
  e. All edges are blocked, and edge fastening is provided at all supports and all panel edges.
  f. Staples shall have a minimum crown width of7/16 inch, measured outside the legs, and shall be installed with their crowns parallel to the long dimension of the framing
  members.
  g.

• CWUIC § 2306.3 Medium relevance — show source text

  TABLE 2306.3(2)—ALLOWABLE SHEAR VALUES (plf) FOR WIND OR SEISMIC LOADING ON SHEAR WALLS OF FIBERBOARD SHEATHING BOARD CONSTRUCTION UTILIZING STAPLES FOR TYPE V CONSTRUCTION ONLYa, b, c, d, e	Col2	Col3	Col4	Col5
  THICKNESS AND GRADE (inches)	STAPLE GAGE AND DIMENSIONS	ALLOWABLE SHEAR VALUE (pounds per linear foot) STAPLE SPACING AT PANEL EDGES (inches)a	ALLOWABLE SHEAR VALUE (pounds per linear foot) STAPLE SPACING AT PANEL EDGES (inches)a	ALLOWABLE SHEAR VALUE (pounds per linear foot) STAPLE SPACING AT PANEL EDGES (inches)a
  THICKNESS AND GRADE (inches)	STAPLE GAGE AND DIMENSIONS	4	3	2
  1/2 or25/32 Structural	No. 16 gage galvanized staple, 7/16″ crown 13/4 inches long	150	200	225
  1/2 or25/32 Structural	No. 16 gage galvanized staple, 1″ crown 13/4 inches long	220	290	325
  For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m. a. Fiberboard sheathing shall not be used to brace concrete or masonry walls. b. Panel edges shall be backed with 2-inch or wider framing of Douglas Fir-larch or Southern pine. For framing of other species: (1) Find specific gravity for species of framing lumber in ANSI/AWC NDS. (2) For staples, multiply the shear value from the table by 0.82 for species with specific gravity of 0.42 or greater, or 0.65 for all other species. c. Values shown are for fiberboard sheathing on one side only with long panel dimension either parallel or perpendicular to studs. d. Fastener shall be spaced 6 inches on center along intermediate framing members. e. Values are not permitted in_Seismic Design Category_ D, E or F.	For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m. a. Fiberboard sheathing shall not be used to brace concrete or masonry walls. b. Panel edges shall be backed with 2-inch or wider framing of Douglas Fir-larch or Southern pine. For framing of other species: (1) Find specific gravity for species of framing lumber in ANSI/AWC NDS. (2) For staples, multiply the shear value from the table by 0.82 for species with specific gravity of 0.42 or greater, or 0.65 for all other species. c. Values shown are for fiberboard sheathing on one side only with long panel dimension either parallel or perpendicular to studs. d. Fastener shall be spaced 6 inches on center along intermediate framing members. e. Values are not permitted in_Seismic Design Category_ D, E or F.	For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m. a.