hort306plantlist10

8/9/2019 HORT306PlantList10

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Woody Landscape PlantsWoody Landscape Plants

HORT 306/608HORT 306/608

FallFall 20092009

Plant List 10Plant List 10

Small Evergreen Trees and LargeSmall Evergreen Trees and Large

Evergreen Shrubs IIEvergreen Shrubs II

Juniperus chinensisJuniperus chinensis

Chinese JuniperChinese Juniper

Needle or scaleNeedle or scale--like evergreen shrubs orlike evergreen shrubs ortrees; extremely variable growth habitstrees; extremely variable growth habits

22 procumbent shrubprocumbent shrub toto 40pyramidal tree40pyramidal tree

LightLight to medium green to blueto medium green to blue--greengreen foliagefoliage

,,

Juniperus chinensisJuniperus chinensis

Chinese JuniperChinese Juniper

Tolerates nearly any conditionsTolerates nearly any conditionsexcept prolonged wet soils orexcept prolonged wet soils or

-- .. --

PhomopsisPhomopsisblight, bagwormsblight, bagwormsand spider mites can be problemsand spider mites can be problems

Valuable shrub for diversity ofValuable shrub for diversity ofsites / usessites / uses, but often over, but often overplanted or improperly sitedplanted or improperly sited

Pollen can induce allergicPollen can induce allergicreactions in some peoplereactions in some people

PlatycladusPlatycladus orientalisorientalis

Oriental ArborvitaeOriental Arborvitae Evergreen oval to pyramidal largeEvergreen oval to pyramidal large shrub / smallshrub / small treetree

Light/medium green becomes slightly yellowLight/medium green becomes slightly yellow--green in wintergreen in winter

Extremely site adaptable, full sun to part shade, wetExtremely site adaptable, full sun to part shade, wettodr acid toalkaline soils salt toleranttodr acid toalkaline soils salt tolerant

PlatycladusPlatycladus orientalisorientalis

Oriental ArborvitaeOriental Arborvitae Frequently planted as a foundationFrequently planted as a foundation

plant, but it becomes too massive;plant, but it becomes too massive;breaks up in snow and ice loadsbreaks up in snow and ice loads

Smaller cultivars should be used whenSmaller cultivars should be used when

BagwormsBagworms & spider& spider mites are significant pestsmites are significant pests

Podocarpus macrophyllusPodocarpus macrophyllus var.var.makimaki

Maki or Japanese YewMaki or Japanese Yew Narrowly upright oval crowned dense darkNarrowly upright oval crowned dense dark

evergreen shrub or small treeevergreen shrub or small tree

Attractive shreddy bark;Attractive shreddy bark;


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PodocarpusPodocarpus macrophyllusmacrophyllus

var.var.makimaki

MakiMaki or Japanese Yewor Japanese Yew

Limited cold tolerance, zones 8a (7b)Limited cold tolerance, zones 8a (7b)to 11,to 11, several relatedseveral related species can bespecies can beuseful z. 9useful z. 9--1111

Tends to decline in heavy soilsTends to decline in heavy soils

Slow growth can be frustratingSlow growth can be frustrating Taxus sppTaxus spp..

YewsYews Highly popular dark green needledHighly popular dark green needled

evergreen shrubs in northern climatesevergreen shrubs in northern climates

Most forms are spreading, some uprightMost forms are spreading, some upright

Taxus

spp.

Yews

Poorly adapted to most of Texas, can be useful inPoorly adapted to most of Texas, can be useful in

Pollen cloudPollen cloud

limited locations in northeast portions of our regionlimited locations in northeast portions of our region

Avoid high pH or poorly drained soilsAvoid high pH or poorly drained soils

Classic shrubs for formal hedges & topiaryClassic shrubs for formal hedges & topiary

Eriobotrya japonicaEriobotrya japonica

Japanese LoquatJapanese Loquat

BroadBroad--leaved evergreen shrubs or smallleaved evergreen shrubs or smalltrees, 10 to 15(30), USDA z. 8b(8a)trees, 10 to 15(30), USDA z. 8b(8a) -- 1111

Loose well drained moist acidic soils areLoose well drained moist acidic soils arebestbest

Coarse leaves not suitable for shearingCoarse leaves not suitable for shearing

Tropical effect, fragrant flowers, edibleTropical effect, fragrant flowers, ediblefruitfruit

Limitations: fireblight, coldLimitations: fireblight, coldtolerance, messiness, salinitytolerance, messiness, salinity

Screening, backgrounds,Screening, backgrounds,home orchardshome orchards

PhotiniaPhotinia fraserifraseriRed TipRed Tip PhotiniaPhotinia

Large broadLarge broad--leaved evergreenleaved evergreen shrubshrub,,1010--1515 talltall

Useful USDA zones 7Useful USDA zones 7 1010

PrimaryPrimary feature is red newlyfeature is red newly

emerged foliage; flowers secondaryemerged foliage; flowers secondary OverOver--planted, suggest choosing otherplanted, suggest choosing other

taxataxa where conditions permitwhere conditions permit

PhotiniaPhotinia fraserifraseriRed TipRed Tip PhotiniaPhotinia

Tolerant of various soil typesTolerant of various soil types

Best in sun but tolerates shadeBest in sun but tolerates shade

Has a high N requirementHas a high N requirement

Good heat & drought toleranceGood heat & drought tolerance

May developMay develop chlorosischlorosis ononinfertile soilsinfertile soils

EntomosporiumEntomosporiumleaf spot,leaf spot,cotton root rot, and aphids arecotton root rot, and aphids aresignificant problemssignificant problems

EntomosporiumEntomosporiumleaf spotleaf spot


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Photinia serratifoliaPhotinia serratifolia

Chinese PhotiniaChinese Photinia Larger (15-20) & coarser, but useful over a similar

range as P. fraseri, USDA zones 7(6b)-11

One of P. fraserihybrids parental species Not as susceptible to Entomosporium leaf spot

Susceptible to cotton root rot, may escape cultivation

PrunusPrunus

carolinianacaroliniana

CherryCherry--LaurelLaurel Large evergreen shrub or small tree, 15Large evergreen shrub or small tree, 15 -- 20 tall, upright oval20 tall, upright oval

spreading with age; excellent evergreen screen, hardy z. 7spreading with age; excellent evergreen screen, hardy z. 7--1010

Intolerant of poor drainage, becomesIntolerant of poor drainage, becomes chloroticchlorotic on high pH soils, leafon high pH soils, leaf

;;

Best on woodland edge, nice background screen for shady sitesBest on woodland edge, nice background screen for shady sites

Pyracantha coccineaPyracantha coccinea

Scarlet FirethornScarlet Firethorn

Upright evergreen medium / large shrub, 6Upright evergreen medium / large shrub, 6--1010

Creamy white spring flowers, malodorousCreamy white spring flowers, malodorous

Excellent fall / winter red, orange, yellow fruitExcellent fall / winter red, orange, yellow fruit

Somewhat particular as to soils / siting, fireSomewhat particular as to soils / siting, fire--blight, cotton root rot, & thorns problematicblight, cotton root rot, & thorns problematic

Espaliers, screens, hedges, useful in z. 6(5)Espaliers, screens, hedges, useful in z. 6(5)--10(11)10(11)

Fireblight damageFireblight damage

Pyracantha koidzumiiPyracantha koidzumii

Formosa FirethornFormosa FirethornLarger, coarser textured, more heat tolerant,Larger, coarser textured, more heat tolerant,

but less cold tolerant thanbut less cold tolerant than P.P. coccineacoccinea,, USDAUSDAz. 8 (z. 8 (7b)7b) -- 1111

H brids withH brids withP.P. coccineacoccineaare popularare popularin our regionin our region

VauqueliniaVauquelinia

angustifoliaangustifolia

ChisosChisos

A medium shrub to small tree, 8 to 12A medium shrub to small tree, 8 to 12(20) tall, hardy to USDA z. 7(20) tall, hardy to USDA z. 7 9 (9 (10)10)

Handsome dark glossy evergreenHandsome dark glossy evergreenleavesleaves

FragrantFragrant cymecyme--like clusters of smalllike clusters of smallwhite flowers in late springwhite flowers in late spring

VauqueliniaVauquelinia angustifoliaangustifolia

ChisosChisos RosewoodRosewood Very heat, wind, & droughtVery heat, wind, & drought

tolerant, most anytolerant, most any well drainedwell drainedsoil, good West TX & SW USsoil, good West TX & SW USlandscape shrublandscape shrub

FireblightFireblight can be serious in humid climatescan be serious in humid climates


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Loropetalum chinenseLoropetalum chinense

Chinese Fringe FlowerChinese Fringe Flower Large 6 to 8 (12) evergreen shrub,Large 6 to 8 (12) evergreen shrub,

useful in USDA z. 8 (7b)useful in USDA z. 8 (7b) --1010

Irregularly upright oval to roundedIrregularly upright oval to roundedcrowncrown

BlueBlue--green, green, to red foliage,green, green, to red foliage,mediummedium--finefine

Flowers, strapFlowers, strap--like white to pink petals,like white to pink petals,fallfall--springspring

Loropetalum chinenseLoropetalum chinense

Chinese Fringe FlowerChinese Fringe Flower

Problems with salty soils/water,Problems with salty soils/water,

high pH soilshigh pH soils

Hedges, screens, large containersHedges, screens, large containers

Myrica ceriferaMyrica cerifera((Morella ceriferaMorella cerifera ))

Southern WaxmyrtleSouthern Waxmyrtle

Medium shrubs/small trees, evergreen USDAMedium shrubs/small trees, evergreen USDAz.8z.8 -- 11, deciduous z. 7, under11, deciduous z. 7, under--utilizedutilized

Folia e with ba berr scent medium texturedFolia e with ba berr scent medium textured

MyricaMyrica ceriferaceriferaSouthernSouthern

WaxmyrtleWaxmyrtle

DioeciousDioecious, attractive fragrant, attractive fragrantsilversilver--gray fruit on female plantsgray fruit on female plants

Few limitations, somewhat leggy, brittleFew limitations, somewhat leggy, brittlebranches, good limbedbranches, good limbed--up as a small treeup as a small tree

MyricaMyrica pussillapussilla

DwarfDwarf WaxmyrtleWaxmyrtle

Smaller compact version ofSmaller compact version ofMyricaMyrica ceriferacerifera

Perhaps more droughtPerhaps more droughto eran ano eran an yr cayr ca cer eracer era,,good cold tolerance, z. 7good cold tolerance, z. 7 -- 99

Good medium shrub, staysGood medium shrub, staysmore in bounds than themore in bounds than theMyricaMyrica ceriferacerifera

Should be promoted moreShould be promoted morein the tradein the trade

Myrica pensylvanicaMyrica pensylvanica

Northern BayberryNorthern Bayberry

Northern counterpart toNorthern counterpart to M.M. ceriferacerifera

More shrubby, less tendency to tree formMore shrubby, less tendency to tree form

Deciduous to semiDeciduous to semi--evergreenevergreen More showy in fruit thanMore showy in fruit than M.M. ceriferacerifera

Tolerant of infertile sitesTolerant of infertile sites

Useful USDA zones 4 (3b) to 7aUseful USDA zones 4 (3b) to 7aand perhapsand perhapsfurtherfurther southsouth


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Nerium oleanderNerium oleanderCommon OleanderCommon Oleander

Medium/large, 8Medium/large, 8 -- 10 (20) teardrop10 (20) teardrop--shaped suckering evergreen shrubs,shaped suckering evergreen shrubs,sparse branchingsparse branching

Beautiful late spring/early summerBeautiful late spring/early summer

Tolerates salt spray, drought, heat,Tolerates salt spray, drought, heat,

soil salts, various soil pH, andsoil salts, various soil pH, and

seasonal poor drainageseasonal poor drainage

Nerium oleanderNerium oleander

Common OleanderCommon Oleander

Caution all plantCaution all plant

parts are veryparts are verypoisonous!!!poisonous!!!

Cold damageCold damage

Highly variable inHighly variable incold hardiness, z. 7bcold hardiness, z. 7bto 9a, heat to z. 11to 9a, heat to z. 11

Aphids, scale,Aphids, scale,bacterial wilt (FXIB!),bacterial wilt (FXIB!),aggressive rootsaggressive roots

AphidsAphids

PittosporumPittosporum tobiratobira

JapaneseJapanese PittosporumPittosporum

Uniform rounded mound ofUniform rounded mound ofevergreen foliageevergreen foliage

Medium shrub to small tree with anMedium shrub to small tree with anumbrellaumbrella--like crown, foliage confinedlike crown, foliage confinedto branch tipsto branch tips

Dark green or creamy whiteDark green or creamy whitevariegated leavesvariegated leaves

PittosporumPittosporum tobiratobiraJapaneseJapanese PittosporumPittosporum

Good branch structure andGood branch structure andsilversilver--gray trunkgray trunk

Limited cold hardiness, z. 8Limited cold hardiness, z. 8 -- 11;11;intolerant of poor drainage; scaleintolerant of poor drainage; scalensec s are pro ema cnsec s are pro ema c

Tolerates soil and foliar salts,Tolerates soil and foliar salts,high pH soilshigh pH soils

SophoraSophora secundiflorasecundiflora

TexasTexas

MountainMountain

LaurelLaurel Dark glossy green foliage, racemes ofDark glossy green foliage, racemes of

purple to pinkpurple to pink--purple flowers, springpurple flowers, spring Strong fragrance, grape bubbleStrong fragrance, grape bubble--gum scentgum scent

Poisonous bright red seedsPoisonous bright red seeds, used in crafts, used in crafts

SophoraSophora secundiflorasecundiflora

Texas Mountain LaurelTexas Mountain Laurel

Medium / large evergreen shrub / small treeMedium / large evergreen shrub / small tree

Sun to part shade, requires good drainage,Sun to part shade, requires good drainage,z. 8z. 8 -- 10, Texas native, alkaline soil preferred10, Texas native, alkaline soil preferred


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Questions / Comments?Questions / Comments?

All material represented herein areAll material represented herein are

copyrighted by the author, or otherwisecopyrighted by the author, or otherwiseas indicated, with all rights reserved.as indicated, with all rights reserved.

For permission to reproduce text orFor permission to reproduce text or

images from this presentation write:images from this presentation write:

Dr. Michael A. ArnoldDr. Michael A. Arnold

Dept. of Horticultural SciencesDept. of Horticultural Sciences

Texas A&M UniversityTexas A&M University

College Station, TX 77843College Station, TX 77843--21332133

email maemail [email protected]@tamu.edu

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