§9229.6 USE OF ALTERNATE TREE SPECIES — Ukiah Zoning Code

Tables 22 and 25 provide alternative tree species for planting as street trees and parking lot trees. Use of a species from these tables requires written approval from the decision making body for the project (e.g., Planning Director, Zoning Administrator, Planning Commission) as determined by section 9231 of this code, Administration and Procedures. Trees from the Alternate Tree Table may be considered for planting when locational constraints or other project-specific issues make a tree from the Required Tree Table unsuitable for planting. The species included in Tables 21 and 24 were selected based on their ability to tolerate various site constraints, such as limited overhead or root space.

Table 19: Protected Trees

COMMON NAME SCIENTIFIC NAME (1)	SIZE (2)	MODIFICATION TO STANDARD (3)

Black Oak Quercus kelloggii	5 inches DBH	Major Exception
Blue Oak Quercus douglasi	5 inches DBH	Major Exception
Coast Live Oak Quercus agrifolia	5 inches DBH	Major Exception
Cork Oak Quercus suber	5 inches DBH	Major Exception
Interior Live Oak Quercus wislizenii	5 inches DBH	Major Exception
Oracle Oak Quercus x morehus	5 inches DBH	Major Exception
Oregon Oak Quercus garryana	5 inches DBH	Major Exception
Valley Oak Quercus lobata	5 inches DBH	Major Exception
White Oak Quercus	5 inches DBH	Major Exception
Other native California oak	5 inches DBH	Major Exception
California Buckeye	6 inches DBH	Major Exception

COMMON NAME SCIENTIFIC NAME (1)	SIZE (2)	MODIFICATION TO STANDARD (3)
Aesculus, californica
California Bay Umbellaria,californica	8 inches DBH	Major Exception
California or Coast Redwood Sequoia	12 inches DBH	Major Exception
Street trees	N/A	Major Exception
Landmark trees identified in Table 20	N/A	Major Exception
Trees located in riparian corridors	N/A	Major Exception
Any tree required to be planted or preserved as environmental mitigation or condition of approval for a discretionary development application or other development permit	N/A	Major Exception (4)
1. See section 9232 of this code, Glossary, for an explanation of terms. 2. Size is trunk diameter measured at a height of 4.5 feet or diameter at breast height (DBH) from surrounding grade. Multiple trunk trees must have at least one trunk with the above diameter (based on species) to be considered protected. Smaller trees may also be protected under special circumstances and shall be considered on a case by case basis during the development review process. 3. See section 9231 of this code, Administration and Procedures. 4. Any modification to the tree mitigations included as part of an environmental document may require additional environmental review and/or a revision to the environmental document.

Table 20: Landmark Trees on Private Property (1)

COMMON NAME SCIENTIFIC NAME	LOCATION	NUMBER OF TREES	MODIFICATION TO STANDARD (2)

Valley Oak Quercus lobata	225 East Perkins Street	6	Major Exception
Coast Redwood Sequoia sempervirens	410 East Perkins Street	4	Major Exception
Coast Redwood Sequoia sempervirens	Perkins Street at Pear Tree Center	11	Major Exception
Lebanon Cedar Cedrus libani	Perkins Street at Pear Tree Center	2	Major Exception
Dawn Redwood Metasequoia glyptosroboides	North School Street at West Standley	2	Major Exception
Cork Oak Quercus suber	107 Oak Street at the Saturday Afternoon Club	1	Major Exception
Coast Redwood Sequoia sempervirens	107 Oak Street at the Saturday Afternoon Club	2	Major Exception
Coast Redwood Sequoia sempervirens	108 Oak Street	1	Major Exception
Coast Redwood Sequoia sempervirens	265 Clay Street	2	Major Exception
Coast Redwood Sequoia sempervirens	220 Mason Street	1	Major Exception

COMMON NAME SCIENTIFIC NAME	LOCATION	NUMBER OF TREES	MODIFICATION TO STANDARD (2)
Valley Oak Quercus lobata	320 Main Street	1	Major Exception
Valley Oak Quercus lobata	324 Main Street	2	Major Exception
Coast Redwood Sequoia sempervirens	216 West Henry Street at Foundation for Medical Care	6	Major Exception
Coast Redwood Sequoia sempervirens	400 Block North School Street – east side in parking lot	1	Major Exception
Canyon Live Oak Quercus chrysolepis	400 Block North School Street – east side in parking lot	1	Major Exception
Valley Oak Quercus lobata	400 Block North School Street – east side in parking lot	2	Major Exception
Interior Live Oak Quercus wislizanli	400 Block North School Street – east side in parking lot	2	Major Exception
Coast Redwood Sequoia sempervirens	100 Block of Norton Street	1	Major Exception
Oak Quercus	North State Street in front of the courthouse	1	Major Exception
Southern Magnolia Magnoliagrandiflora	North State Street in front of the courthouse	2	Major Exception
Tulip Magnolia Magnolia soulangiana	North State Street southeast corner in front of the courthouse	2	Major Exception
Dawn Redwood Metasequoia glyptosroboides	Corner of Standley and School Streets in front of the courthouse	2	Major Exception
Willows (numerous varieties Salix), cottonwoods, black walnut, live oak, valley oak	Gibson Creek corridor from Perkins Street to Leslie Street	–	Major Exception
1. See also Table 19: Protected Trees. 2. See section 9231 of this code, Administration and Procedures.

(Ord. 1139, §2 (Exh. A, 10.070), adopted 2012)