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SYMBOL KEY BOTANICAL NAME COMMON NAME COMMENTS SIZE QTY WUCOLS MAINTAINED
TREES WIDTH
® A Lagerstroemia hybrids Crape Myrtle FLOWERING 24" BOX 6 M 14'
Natchez' (White) ACCENT STD.
B Quercus robur x bicolor `Long'
C Quercus virginiana
D Specimen Tree
E Populus nigra'Italica'
VINES
w V-1 Parthenocissustricuspidata
GROUNDCOVER
% Senecio mandraliscae
- ALL TREE SHALL BE PLANTED AND MAINTAINED AT A MINIMUM OF 10 FEET
FROM THE TREES DRIP LINE TO ANY COMBUSTIBLE STRUCTURE (PG 25)
- TREE SPACING OF A MINIMUM 10 FEET BETWEEN CANOPIES:
EXCEPTION: THE ARBORETUM TRAIL STREET SCENE FEATURES TALL
WINDROW TREES, WHICH MAY BE PLANTED ALONG THE PERIMETER
WALLS AS A FORMAL EVERGREEN BACKGROUND (PG 27). TREES WILL BE
PLANTED 15' O.C. IN 300' LONG MAX. SECTIONS WITH +100' BREAKS
BETWEEN WINDROW SECTIONS (APPENDIX F)
- MATURE TREES SHALL BE LIMBED UP TO EIGHT FEET OR 3x THE HEIGHT OF
UNDERSTORY PLANTS TO PREVENT LADDER FUELS, WHICHEVER IS GREATER
(PG 25)
- TREE MAINTENANCE INCLUDES LIMBING-UP (CANOPY RAISING) 6 FEET OR
ONE-THIRD THE HEIGHT OF THE TREE (PG 25)
- SHRUBS WILL NOT BE ALLOWED DIRECTLY ADJACENT TO TREE TRUNKS,
BELOW TREE CANOPIES UNLESS APPROPRIATE SEPARATION IS ACHIEVED TO
AVOID LADDER FUELS (AT LEAST 6 FEET BETWEEN THE SHRUB AND THE
LOWEST LIMB OF THE TREE) (PG 34)
- LOW GROWING GROUNDCOVER IS PERMISSIBLE THROUGHOUT THE PARKWAY
PLANTING AREA (PG 34)
- HEDGE PLANTING/MAINTENANCE IS PREFERRED AS IT RESULTS IN A DENSE,
COMPACT FUEL THAT IS LESS LIKELY TO IGNITE THAN SHRUBS ALLOWED TO
GROW IN AN AIRY OPEN FORM (PG 33)
- FIRE RESISTIVE VINES ARE ACCEPTABLE ON THE PERIMETER WALLS AS LONG
AS THEY DO NOT ACCUMULATE DEAD LITTER OR HAVE MULTI -LAYERED
GROWTH PATTERN WHERE SHADED LAYERS INCLUDE FLAMMABLE, DEAD
GROWTH (PG 34)
- COMBUSTIBLE GROUND COVERS, SUCH AS MULCH OR WOOD CHIPS, ARE
PROHIBITED ADJACENT TO STRUCTURES WITH AN EXTERIOR STUCCO WALL
AND WEEP SCREED (PG 26)
NOTE: ALL PLANT MATERIAL SPECIES CONFORM TO THE "FUEL MODIFICATION
PROHIBITED PLANT LIST" (APPENDIX G) AND THE ARBORETUM PROJECT PLANT
PALETTE (APPENDIX F)
FIRE DESIGN CRITERIA PER
"FIRE PROTECTION MASTER PLAN FOR THE ARBORETUM"
(PREPARED BY DUDEK - APRIL 201 s)
STREET TREE INSTALLATION NOTE:
STREET TREES WITHIN SIGHTLINES ARE TO BE REVIEWED BY TRAFFIC
ENGINEER AND PUBLIC WORKS DEPARTMENT PRIOR TO
INSTALLATION.
Regal Prince Oak BACKDROP 24" BOX 2 M
WINDSCREEN STD.
PLANT @ 15' O.C.
Southern Live Oak STREET TREE 36" BOX 7 M 20'
STD.
To Be Selected HERITAGE' 84" Box Min. 2 M 25',r„
or Transplanted
Equivalent
Lombardy Poplar BACKDROP 24" BOX 34 M 8'
WINDSCREEN STD.
PLANT @ 15' O.C.
Boston Ivy 10' O.C. IG 95 M
SELF -CLIMBING
LOW FUEL VINE
PLANTED ON
EXTERIOR FACE
OF WALL (TYP.)SCALE
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Blue Chalksticks , Rooted cuttings 380 L
@ 12" O.C. SQ.FT.
% 11 T E:.1 G A, P E S
Landscape Architecture
and Planning
3190 B2 Airport Loop Drive
Costa Mesa, CA 92626
Richard Polhamus, License CA—#2782
(940) 644-0370 (714) 210-3140 FAX
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