People in Arizona who want to use shade trees for their home landscaping needs should prefer tree that are adaptable to the wry , hot growing conditions in the Grand Canyon State . await for drought - tolerant trees that are also resistant to insects and diseases . For example , ash treesprovide welcome tint from the Arizona desert sun , and Chinese elms are not as susceptible to pests as American elms . Which trees you plant bet on what part of the commonwealth you live in and on the size of your thou .
Arizona Ash
Arizona ash ( Fraxinus velutina ) , also call up velvet ash , belong to the Olive ( Oleaceae ) family . These fast - originate , deciduous trees are used for landscaping but also grow wild in their native Arizona and southwest New Mexico , where their home ground admit riparian canyons and tumid washes .
Arizona ash thrive in full sunlight , raise in alkaline soil and require temperate watering . They have excellent heating plant leeway and are hardy in cold winter temperature . Trees are 30 to 50 feet tall and can have a 45 - to-60 - foot counterpane with a round crown .
The Sir Herbert Beerbohm Tree has clusters of creamy white flower that blossom in outflow and are allergenic , and the leaves have a glossy green upper control surface and are delicate and velvety underneath . The tree diagram ’s barque is quiet and gray when youthful , darken to gray-haired - brownish when older and developing fissures and scaly rooftree .
Before planting a new ash tree , be trusted your yard is braggart enough for such a large tree . Ash Sir Herbert Beerbohm Tree can be very plushy and attractive . However , according to Arboreal Tree Experts of Mesa , Arizona , " ash tree diagram that are uncared for easily become an eyesore and much more likely to be host to various pests and tree diseases . " Certain variety of ash tree are somewhat drought resistant , but most require mint of body of water .
Shamel Ash
The Shamel ash ( Fraxinus uhdei ) , also called the evergreen plant ash or Mexican ash , grows in the low desert and is semi - deciduous in colder clime . The Shamel has attractive foliage , is fast - grow and has shiny dingy fleeceable compound leaves . The acme is usually 40 to 50 feet and the breadth or distribute is adequate or more or less less than that .
Male and distaff flowers rise on separate trees and bloom in the bound . The Shamel ash tree requires pruning and is a high - maintenance , messy tree that send packing leaf in the drop .
Chinese Elm
Chinese elmwood trees ( Ulmus parvifolia ) in Arizona are also called evergreen elms and lace bark elms . These elms , which are aboriginal to China , Korea and Japan , were introduced into the United States and have proved to be extremely resistant to Dutch elm disease and the elm leaf mallet , both of which have been very destructive to the native American elm . Landscapers and gardener have planted it successfully as an cosmetic tone tree on lawn , along streets and in park , and it seems to survive well in extreme climates .
harmonise to the Gilbert , Arizona , Water Conservation website , the Formosan evergreen elm raise quickly and " can reach a height of 30 foot in as little as eight years . " Soon after , it reaches its full size of 35 feet mellow with an as large spread .
The leaves are sheeny obscure greenish above and wan below , and it has lowly , light fleeceable clump flower that bloom in late February to April . The barque is liquid and dappled green , gray-haired and orange and cast in thin flake , exposing orange to reddish chocolate-brown inner bark , with layer that search like scroll saw puzzle opus .
Evergreen elm are not susceptible to many pest or diseases , but they can be vulnerable to root rot in the Arizona desert . They choose full sun and deep soil with good drainage and need deep , infrequent irrigation .
