HomeMy WebLinkAboutPZ Item 09 - AM17-04 Tree Preservation & Landscaping Regulations MEMO TO: PLANNING AND ZONING COMMISSION
FROM: SCOTT WILLIAMS, DEVELOPMENT SERVICES DIRECTOR
MEETING DATE: DECEMBER 19, 2017
SUBJECT: ZONING ORDINANCE AMENDMENTS AM17-04-AMENDMENTS
TO SECTION 52, TREE PRESERVATION AND SECTION 53,
LANDSCAPING REGULATIONS
RECOMMENDATION:
Staff recommends the Planning and Zoning Commission consider the proposed
amendments to Section 52, Tree Preservation and Section 53, Landscaping Regulations
relative to approved trees meeting minimum landscaping requirements, and take any
necessary action.
BACKGROUND:
The approved tree list adopted by the City of Grapevine currently allows ornamental pear
trees ("Callery Pear") as acceptable trees to meet landscaping requirements. Varieties of
ornamental pear trees include "Rancho", "Aristocrat", "Capital", and "Bradford".
Unfortunately, these trees have proven to be short lived, disease prone, and brittle. These
trees often receive the greatest damage during wind and ice storms, and there are
examples throughout the City of these trees in horribly deformed and/or dying condition.
Another problematic tree is the Bald Cypress. These trees not only require tremendous
amounts of water, but also have rampant and destructive root systems, making them a
very poor choice as a general landscaping tree.
Staff recommends removing these trees from the Required Tree List For Required
Landscaping as shown in the attachment. Staff has consulted the Parks Director,who also
recommends this amendment.
City of Grapevine
REQUIRED TREE LIST FOR REQUIRED LANDSCAPING
(Excluding Landscape Islands)
(Medium to Large Deciduous Trees)
Tree Name Scientific Name Height Width
. P.' se' '' ' I'
Burr Oak (Quercus macrocarpa) 50'-60' 40'-50'
Callery Pear (Pyrus calleryana) 30' 15' 25'
(*Varieties: "Rancho", "Aristocrat",
Cedar Elm (Ulmus rassifolial) 50'-60' 40'-50'
Chinese Pistacho (Pistacia chinensis) 40'-50' 40'-50'
Chinquapin Oak (Quercus muhlenbergii) 50'-60' 40'-50'
Pecan (Carya illinoensis) 50'-60' 40'-50'
Shumard Red Oak (Quercus shumardii) 50'-60' 40'-50'
Texas Red Oak (Quercus shumardii) 30'-35' 20'-30'
Western Soapberry (Sapindus drummondii) 30'-40' 25'-35'
Southern Magnolia (Magnolia grandiflora) 60'-80' 30'-50'
Lacey Oak (Quercus glancoides)
EVERGREEN TREES
Afghan Pine (Pinus eldarica) 30'-40' 25'-30'
Austrian Pine (Pinus nigra) 20'-25' 10'-15'
Eastern Red Cedar (Juniperus virginiana) 30'-40' 20'-30'
Eldarica Pine (Pinus eldarica) 30'-40' 25'-30'
Japanese Black Pine (Pinus thunbergiana) 20'-50' 20'-30'
Leyland Cypress (Cupressocyparis leylandi) 20'-40' 40'-50'
Live Oak (Quercus virginiana) 25'-35' 35'-55'
Yaupon Holly (Ilex vomitoria) 12'-18' 10'-15'
(Small Deciduous Trees)
Desert Willow (Chilopsis linearis) 15'-30' 15'-25'
Eve's Necklace (Sophora affinis) 15'-25' 15'-20'
Mexican Plum (Prunus mexicana) 15'-25' 15'-20'
Possumhaw holly (Ilex decidua) 15'-20' 10'-15'
Redbud (Cercis canadensis) 20'-25' 15'-20'
"Oklahoma"
City of Grapevine
REQUIRED TREE LIST FOR LANDSCAPE ISLANDS
(Medium to Large Deciduous Trees)
Tree Name Scientific Name Height Width
Bald-Cypress (Taxodium distichum) 10' 60' 30' 40'
Burr Oak (Quercus macrocarpa) 50'-60' 40'-50'
Gallery Pear (Pyrus mlleryana) 30' 15' 25'
(*Varieties: "Rancho", "Aristocrat",
"Capital" "Bradford")
Cedar Elm (Ulmus rassifolial) 50'-60' 40'-50'
Chinese Pistacho (Pistacia chinensis) 40'-50' 40'-50'
Chinquapin Oak (Quercus muhlenbergii) 50'-60' 40'-50'
Pecan (Carya illinoensis) 50'-60' 40'-50'
Shumard Red Oak (Quercus shumardii) 50'-60' 40'-50'
Texas Red Oak (Quercus shumardii) 30'-35' 20'-30'
Western Soapberry (Sapindus drummondii) 30'-40' 25'-35'
Southern Magnolia (Magnolia grandiflora) 60'-80' 30'-50'
Lacey Oak (Quercus glancoides)
EVERGREEN TREES
Afghan Pine (Pinus eldarica) 30'-40' 25'-30'
Austrian Pine (Pinus nigra) 20'-25' 10'-15'
Eastern Red Cedar (Juniperus virginiana) 30'-40' 20'-30'
Eldarica Pine (Pinus eldarica) 30'-40' 25'-30'
Japanese Black Pine (Pinus thunbergiana) 20'-50' 20'-30'
Leyland Cypress (Cupressocyparis leylandi) 20'-40' 40'-50'
Live Oak (Quercus virginiana) 25'-35' 35'-55'
Yaupon Holly (Ilex vomitoria) 12'-18' 10'-15'