Ukiah Zoning Code § 9229.9 Required Street Trees

Table 23 identifies the required tree species for all streets not included in Table 21. There are no alternate trees for nonprimary streets due to the wide variety of species included in Table 23. Requests to use a species not included in Table 23 require Planning Commission approval of a major exception. The exception application shall include the items required by subsections 9229.8A1 through 9229.8A4 of this code and Table 29.

Table 23: Required Street Trees for Nonprimary Streets

Common Name Scientific Name	Average Height (feet)	Average Spread (feet)	Evergreen or Deciduous	Drought Tolerant	Native (Yes/No)	Canopy Type	Suitable For	Suitable For	Suitable For		Modific to Stan
							Roots and Confined Spaces	Overhead Wires	Canopy and Confined Spaces	Locational Requirements/ Characteristics

Chinese Pistache Pistacia Chinesis	40 ft.	40 ft.	Deciduous	Yes	No	Round	Moderate	No	No	Supplement existing only at intersection of Perkins Street and State Street	Major Exceptio
Dwarf Southern Magnolia Magnolia grandifloria ‘Little Gem’	25 ft.	15 ft.	Evergreen	Moderate	No	Fastigiate	Yes	Yes	Yes	At intersection of Perkins Street and State Street	Major Exceptio
European Hornbeam Carpinus betulus ‘Fastigiata’	50 ft.	30 ft.	Deciduous	Moderate	No	Oval	Yes	No	Yes	Fast growth, needs water when young	Major Exceptio
Flowering Pear Pyrus calleryana ‘Aristocrat’	40 ft.	30 ft.	Deciduous	Moderate	No	Pyramidal	Yes	No	Yes	Alternate to Plantanus in restrictive locations	Major Exceptio
Fruitless Olive Olea europea ‘Swan Hill’	25 ft.	20 ft.	Evergreen	Yes	No	Round	Yes	Yes	Yes	Use at intersections	Major Exceptio
Grecian Laurel Laurus nobilis	30 ft.	25 ft.	Evergreen	Yes	No	Pyramidal	Yes	Yes	Yes	Use at intersections or limited canopy locations	Major Exceptio
London Plane Plantanus acerfolia ‘Bloodgood’	60 ft.	40 ft.	Deciduous	Yes	No	Broadly pyramidal	Moderate	No	No	Well suited to urban site conditions, better choice for water retentive soils	Major Exceptio
Oak, Black Quercus kelloggii	50 ft.	40 ft.	Deciduous	Yes	Yes	Round	Moderate	No	No	Predominant street tree for Perkins Street. Native oak species	Major Exceptio
Oak, English Fastigiate Quercus robur ‘Fastigiata’	45 ft.	15 ft.	Deciduous	Moderate	No	Fastigiate	Yes	No	Yes	Fast upright growth for limited canopy locations	Major Exceptio
Oak, Holly Quercus ilex	35 ft.	35 ft.	Evergreen	Yes	No	Round	Moderate	Yes	Moderate	Use at all intersections	Major Exceptio
Oak, Interior Live Quercus wislizanii	35 ft.	40 ft.	Evergreen	Yes	Yes	Round	Yes	No	No	Use at intersections when adequate space at bulb outs	Major Exceptio
Oak, Red Quercus rubra	70 ft.	50 ft.	Deciduous	Yes	No	Spreading	No	No	No	Slow growth, attractive shade tree	Major Exceptio
Oak, Valley	70 ft.	50 ft.	Deciduous	Moderate with deep	Yes	Round	No	No	No	At library parking lot,	Major Exceptio
							Roots and Confined Spaces	Overhead Wires	Canopy and Confined Spaces	Locational Requirements/ Characteristics
Quercus lobata				soil						pocket park and Gibson Creek
Redbud Cercis reniformis ‘Oklahoma’	20 ft.	20 ft.	Deciduous	Yes	No	Vase	Yes	Yes	Yes	Suitable under utility lines, spring blooms	Major Exceptio
Washington Hawthorne Crataegus phaenopyrum	25 ft.	20 ft.	Deciduous	Moderate	No	Vase	Yes	Yes	Yes	Suitable under utility lines, spring blooms/fall color	Major Exceptio

(Ord. 1139, §2 (Exh. A, 10.100), adopted 2012)