Tree and Shrub Canopy Design Guide

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The selected trees and shrubs showcase just a few of the numerousdesertspeciesthatcan thrive in a desert garden. These choices are based on their common availability at the Garden’s plant sale, nurseries and their strong resilience to heat and droughtconditions.

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PREPARING FOR CLIMATE RESILIENCE

Withextendedsummertemperatures exceeding110ºF,it'sessentialtoprepare ourgardensbyprovidingsufficient shade,particularlyforheat-sensitive plants.Utilizingtreesandshrubscan effectivelyshieldheat-sensitivespecies, helpingthemthriveeveninthe swelteringheat.

TREE & SHRUB

BENEFITS

WHY CHOOSE PLANTS

Create Microclimates.

TheEnvironmentalProtectionAgencyindicates thattheadditionoftreesandlargeshrubscan reducetemperaturesbyasmuchasninedegrees incomparisontoareaslackingshade,thereby creatingafavorable,coolermicroclimate.

Plant Protection.

Treesandlargeshrubsprovideessential protectionforheat-sensitiveplants,creating shadedenvironmentsthathelpthemendure extendedperiodsofintensesummerheat.

Sustainable.

Optfortreesandshrubsthatareadaptedto desertconditions,astheyprovidesustainable solutions.Theseplantsareresilienttoheat, demandlesswaterandrequireminimal maintenance.

The Future.

Byplantingtreesandshrubstoday,youcanset thestageforyourfutureunderstoryplantsto thriveduringtheintensesummerheat,resulting inaclimate-resilientgarden.

TREES

NATURE INSPIRED

Treescangreatlydifferinheight, rangingfrom16feetandbeyond.It's essentialtoplanfortheirproper placement,astreesformthe foundational"bone"structureofthe entirelandscape.Oncetheymature, theybecomeenduringelementsin yourgarden.

TREES

MULGA

Acompacttreeperfectforlimited spaces.Itnaturallyformsa roundedshape,makingitan excellentchoiceforproviding shade.15'talland15'wide.Fullto partialsunlight.Evergreen.

CASCALOTE

CACALACO

Agreatpatiotreethatwillremain evergreeninwarmareas. A thornlessvarietyisalsooffered. Fast-growingandeasytomaintain. 15'talland15'wide.Fulltopartial sunlight.Semi-evergreen.

DESERT WILLOW

CHILOPSIS LINEARIS

Thisstunningtreeisacaptivating enhancementtoyourgarden, offeringessentialshadeduringthe summerwhilesheddingitsleavesin winter.Itgrowsquicklyandrequires minimalupkeep.15-20'talland1015'wide.Fulltopartialsunlight.

Whatstepsshould Itaketoselectthe perfecttree?

Choosingtheappropriate treeforitsdesignated locationiscrucial.When planningwheretoplant, ensurethatthefullygrown treewillcomfortablyfitin youryardwithoutobstructing powerlines,buildings,fences orrooflines.

CAESALPINIA

TREES

TipsforPlantingTrees andShrubs

TEXAS EBONY

Atreeadornedwithdeepgreen leaves,aromaticflowersand distinctivezig-zagstems.Once mature,itstandsasastrikingfocal pointinthegarden.30'talland 20'wide.Fullsunlight.Evergreen.

PALO BLANCO

MARIOSOUSA WILLARDIANA

Thisslendertreeisidealfornarrow areasandoffersanelegantlookin anygarden.Itsstrikingwhite, peelingbarkbringsanaddedtouch ofcharm.20'talland10'wide.Full sunlight.Semi-evergreen. EBENOPSIS EBANO

Clickheretowatchthisvideo forguidanceonproper plantingtechniques. Examinetherootsfordefects likecirclingorkinkedroots; straightenorpruneto eliminatetheseissues.

Understandthesignificanceof thetrunkflare.Thisareaserves asthetransitionfromthetrunk totheroots,wherethetrunk widensintotheprimaryroots. Ensurethetrunkflareisvisible andremoveanyexcesssoil thatcoversit.

IRONWOOD

OLNEYA TESOTA

Thistreeservesasastriking landscapespecimen,providing excellentshadeforbothunderstory plantsandpeople.Itgrowsata slowtomoderatepace.30'talland 25'wide.Fullsunlight.Evergreen.

Confirmthatthetrunkflareis positionednodeeperthanthe soilgrade.

TRUNK FLARE

TREES

AFewTipsforCaringfor

YourNewlyPlantedTree

PALO VERDE

PARKINSONIA X ‘DESERT MUSEUM’

Thishybridboastsattractive characteristicssuchaslarge blooms,rapidgrowth,anextended floweringseasonand,bestofall,it isthorn-free.30'talland30'wide. Fullsunlight.Semi-evergreen.

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HONEY MESQUITE

PROSOPIS GLANDULOSA

Thisexpansivetreerequiresplenty ofspacetoflourish.Theopenand irregulargrowthpatternbringsa distinctivecharmtoanygarden. 30'talland30'wide.Fullsunlight. Semi-evergreen.

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VELVET MESQUITE

PROSOPIS VELUTINA

Asprawlingtreewithmultipletrunks thatstandsoutremarkablyinany garden.Itcastsalightshade, creatingaperfectenvironmentfor growingvariousplantsbeneathit. 30'talland30'wide.Fullsunlight. Semi-evergreen.

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Allowyournewlyplanted treetogrowforatleasta yearbeforepruning.Newly plantedtreesrelyontheir leavestoproducefood, whichnourishestheir developingrootsystems.Itis perfectlyacceptableto removedead,diseasedor brokenbranchesatplanting. Wateryourtreesdeeplyand slowlytopromoteastrong rootsystem,enablingthem towithstandanystormsthat mayarise. Afterplanting,removethe nurserytreestake.Staking isn'talwaysnecessaryand canactuallyhindertree growth,leadingtoasmaller rootsystemandaweaker trunk. Ifstakingisnecessary, clickonthisguideforthe beststrategies.

TREES

TEXAS LIVE OAK

QUERCUS X ‘JOAN LIONETTI’

Thisstunningselectionistailored forthearidsouthwest'sgrowing conditions.Itboastsanupright shapeandasymmetricalcanopy. 30'talland30'wide.Fulltopartial sunlight.Semi-evergreen.

Whatisthebest waytoprunemy youngtreeafterit hasbeeninthe groundformore thanayear?

Properpruningplaysacrucial roleinnurturingayoungtree witharobuststructureand appealingshape.

SWEET ACACIA

VACHELLIA FARNESIANA

Adelightfultreeperfectforsmall areas,adornedwithfragrant yellowblossoms.Itprovidesgentle shadeforvariousplants. 20'talland15'wide.Fullsunlight. Semi-evergreen.

ClickonthisguideonPruning YoungTreesfromthe InternationalSocietyof Arboriculture'sTreesareGood.

CHASTE TREE

VITEX AGNUS-CASTUS

Alivelytreeadornedwithfragrant blossomsappearinginlatespring. Itprovidesshadeduringthe summer,yetlosesitsleavesin winter,allowingsunlighttothe plantsbelow.25'talland20'wide. Fulltopartialsunlight.Deciduous.

SHRUBS

NATURE INSPIRED

Shrubscanvarysignificantlyinheight, measuringanywherefromthreefeetup to15feettall.Largershrubscanbe shapedtomimicsmalltrees,providing shadefortheplantsbeneaththem.Think aboutusingtheselargershrubs,pruned intotreeforms,asidealsolutionsfor compactspaces.

SHRUBS

HowcanIchoose therightshrub?

TEXAS OLIVE

Aversatileshrubthatcanalsobe shapedintoasmalltree.Itfeatures crinklywhiteflowersthatbloom throughouttheyear,addingalovely touchtoyourgarden.20'talland 15'wide.Fullsunlight.Evergreen.

MEXICAN BIRD OF PARASIDE

Abushyshruborsmalltreefeaturing smoothgreybarkandvibrantyellow flowersthatbloomthroughoutthe summer.10'talland10'wide.Fullto partialsunlight.Semi-evergreen.

RED BIRD OF PARADISE

CAESALPINIA PULCHERRIMA

Amultifunctionalshrubthataddsa uniquecharmtoyourgarden.It featuresbrilliantorangeflowersthat bloomthroughoutthesummer.12'tall and10'wide.Fullsun.Semi-evergreen.

Choosingasuitablelocation thatoffersenoughspacefor theshrubtoflourishis essential.It'salsoimportantto takeintoaccounttheir sunlightrequirementsto promotehealthygrowthand encourageblooming.

Totransformashrubintoa smalltree,selectlargershrubs thatgrowtoaheightofat leastsixfeetormore.

CORDIA BOISSIERI
CAESALPINIA MEXICANA

SHRUBS

HOPBUSH

DODONAEA VISCOSA

Anoutstanding,heat-tolerantshrub idealforcreatingprivacyscreens, especiallyincompactareas.Its flowersmaynotbestriking,butthe fruitsprovideseasonalappeal. 15'talland8'wide.Fulltopartial sunlight.Evergreen.

GUAYACAN

GUAIACUM COULTERI

Abreathtakingcenterpieceperfect forgardensinhot,aridregions.The vibrantelectricblueflowersbloom inthesummer,particularlyaftera goodrainfall.20'talland10'wide. Fulltopartialsunlight.Evergreen.

CREOSOTE

LARREA TRIDENTATA

Aguardianofthedesert,thisplant offersadistinctearthyaroma.It naturallyshieldssmallsucculents fromthescorchingsummerheat. 8-10'talland8'wide.Fulltopartial sunlight.Evergreen.

TipsforTransforming ShrubsintoSmallTrees Largeshrubswithcanopies thatextendlowtotheground canbeeasilyandquickly reshapedintosmalltrees.

Startbyidentifyingthelowest branchesontheshrubthatyou wishtokeep. Next,pruneallotherbranches backtothetrunkortrunks. Youmightalsoneedtothinor reducethecanopytoimprove theoverallappearance. Toreducethesize,remove smallbranchesattheirorigin. Forlargerlimbsthatneed shortening,prunebacktoa lateralbranchthatis adequatelysized,atleastonethirdthediameterofthelimb beingcut,totakeonthe terminalrole.

SHRUBS

SILVERY CASSIA

SENNA PHYLLODINEA

Thisexceptionalshrubboasts silveryleavesandcup-shaped, yellowflowersthatbloomfromfall tospring.Itgrowsquickly,offering shadetoyoursmallerplantsinno time.6'talland6'wide.Fullto partialsunlight.Evergreen.

JOJOBA

SIMMONDSIA CHINENSIS

Aheat-tolerantshrubidealforthe sun-bakedcornersofyourgarden. Itdevelopsaroundedshape,with itsleatheryleavescreatingalush canopy.10'talland10'wide.Fullto partialsunlight.Evergreen.

ORANGE JUBILEE

TECOMA ‘ORANGE JUBILEE’

Avibrantshrubthatgrowsrapidly andflourishesparticularlywellin warmareas.Itsstunningblossoms makeadelightfulshowduringthe warmseason.12'talland6'wide. Fulltopartialsunlight.Semievergreen.

Whenisthebest timetoprunemy floweringshrubto guarantee blooms?

Typically,spring-flowering shrubsshouldbeprunedafter theybloom,sincetheseplants formflowerbudsonlastyear's growth.It'sbesttocompletethis taskbeforethesummerheat setsin. Ontheotherhand,summerand fall-floweringshrubsshouldbe prunedinearlyspring,asthey developflowerbudsonnew growthproducedduringthe currentseason.

SHRUBS

ARIZONA YELLOW BELLS

Arapidlygrowingshrub,flourishes inwarmconditionsandmaintains itsbloomsevenduringpeakheat, aslongasitisgivenadeep watering.15'talland6'wide.Fullto partialsunlight.Semi-evergreen.

SUNRISE TECOMA

Along-bloomingshrubshowcasing vibrantsunrise-coloredflowers.Itis notonlyheattolerantbutalso exhibitsgreatercoldtolerance comparedtootherTecomas.8'tall and6'wide.Fulltopartialsunlight. Semi-evergreen.

ARIZONA ROSEWOOD

VAUQUELINIA CALIFORNICA

Thisoften-overlookedshrub deservesaspotinthegardendue toitsheattolerance,makingitan idealchoice.Itsdelicatewhite flowersenhancetheoverallbeauty ofyourgarden.15'talland15'wide. Fulltopartialsunlight.Evergreen.

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OtherEssentialTipsfor CaringforTreesand Shrubs

Desert-adaptedtreesand shrubsflourishwithoutthe needforextrafertilizers,as thenativesoilgenerally suppliesalltheessential nutrientsrequiredforhealthy growth. Keepinmindthatexcessive pruningcanleadtoplant decline,reducedflowering, anderraticgrowthpatterns. Avoidremovingmorethan25 percentofthetree’sand shrub’scanopyinanygiven year. Onceyou'veplantedthem,it's advisabletoaddmulch aroundyourtreesandshrubs. Justensurethatthemulch doesnotcomeintocontact withthestemortrunk,and avoidapplyingittoothickly.A layerofonetotwoinchesis ideal,astoomuchmulchcan causeissues.

TECOMA STANS V. ANGUSTATA
TECOMA ‘SUNRISE’

KEEP GROWING

Desert Botanical Garden

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