Dallas Arboretum Plant Trials

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Trial by Flower!!!
Some like it Hot!
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Jimmy TurnerDirector ofHorticulture Research
Design

• Background
• Job Duties
• Plant Trials
• Collections
• Garden Design
• Purchase plants
• Special projects
• Development
• Industry liason
• Garden Writer
• Ok I get paid to kill plants and talk about
  them!

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What were fixin to do

• Questions HOs
• Quick intro of
• Me
• Dallas Arboretum
• My climate
• Plant information
• Annuals
• Foliage Annuals
• Perennials
• Un-New-Usuals
• 150 slides..
• So buckle your seat belts!

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The Dallas Arboretum

• City owned, but operated by a non-profit The
  Dallas Arboretum Botanical Society
• 25 years old
• Arboretum? Nah! really a Display Garden

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By the Numbers

• 66 acres tended by 20 horticulturists
• 7 major gardens 5 smaller
• 2 historic estates
• 500,000 spring bulbs
• 300,000 pansies/violas
• 350,000 summer color
• 20,000 fall mums
• Azaleas..

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Other Numbers

• 385,000 visitors per year
• 14,000 members
• 60,600 hours donated by 700 volunteers
• 23,400 concert goers
• 55,000 school children
• 400 weddings

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Pumpkin Pie DABS style!
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Pumpkin Soup
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Pumpkin House
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Whats the most asked question???
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Dallas Arboretum Plant Trials

• Data on 3000 plants per year
• Annuals
• Perennial
• All America Selection
• Bulb Trials
• Woody Collections
• Conjunct Trials with AM University
• www.dallasplanttrials.org

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Why Trial Plants in Dallas?

• Zone 7 to 8a (TX 5-10)
• Heat (90 days over 100 this year!)
• Soil (Clay pH)
• Rainfall (?)
• Temp swings!
• Night temp!
• Humidity /-
• Length of season (240)
• Sun (140)

If we cant kill it no one can!
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Texas Snow!
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AWARDS
Annual Field Day 500 industry members

• Arboretum Approved
• North Texas Winners Circle

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Ageratum Artist series

• Proven Winners
• I too was skeptical
• Blue Purple
• New Rose
• Vegetative prop.
• Others scored higher, but this one lived longer!

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Angelonia Serena Series

• PanAmerican
• Seed grown
• Compact
• Doesnt cycle
• Heavy flowering
• Serena White !!! Absolute best Angelonia!

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Arctotis Lemon Drop

• Ball Floraplant
• Not the showiest, but it survives
• Yellow daisies up through summer
• Thick foliage
• Spread to 12 mounds?

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Begonia Stara

• Green Leaf
• 5 colors
• FULL SUN
• All season
• No leaf burn
• 4?
• 2ft.
• BLOOMS!!!

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Cuphea Flamenco seriesSambaRumba Tango

• Proven Winners
• Annual-Veg.
• Full Sun
• Heavy flowering
• Compact habit
• Better branching
• Large up-facing flowers

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EuphorbiaDiamond Frost

• Annual-Veg.
• Proven Winners
• Heat Humidity no problems!
• Full sun!
• Fine textured
• Not showy alone
• Think of it as Babys Breath for the South!!!

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Helenium amarum Dakota Gold

• Ball Seed
• Annual-Seed
• Texas native
• Full sun
• Mounding
• Gold flowers all summer
• Tough
• Yes, it really is Bitterweed!
• Best New Introduction 2005!

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Sun-patiens from Sakata

• ?

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LaurentiaStarshine

• SG Flowers
• Annual-(well.)
• Sun
• Ok, not really sure what it is but it flowers and
  flowers and flowers
• 1 blue star like flowers on spreading green mats

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MarigoldZenith Sunburst

• Annual
• Best marigold Ive tested
• Large plant (3ft.)
• Sterile
• Spreading
• Constant blooming
• Vigorous

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Nicotianaalata

• Original species
• Still the best for the south
• SCENTED!
• Reseeds
• Not N. sylvestris
• Flowers all summer

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Pachystachys luteaLemon Lollipop

• Annual
• Best plant ever for shade
• Why dont I see it ever where?

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Porphyrocoma MaracasBrazilian Fireworks

• Ball
• Annual-Seed
• SHADE
• Got shade? Deep shade? Well this one loves it.
  The flowers are awesome, but the foliage makes it
  a worthy garden addition alone!

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Pentapetes phoeniciaCopper Cups

• Seed grown annual
• Underused
• Wet or dry
• Flowers all summer
• Sell it in 3 gal. containers

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Portulacagrandiflora Samba

• Annual-Veg.
• Sun
• Large growing plants that are underused
• Huge flowers in the worst heat!
• Why has this plant been forgotten?

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SalviaMystic Spires Blue

• Ball Floraplant
• Annual/Perennial-Veg.
• Basically dwarf form of Indigo Spires
• Perfect as annual or use as perennial
• Best blue salvia Ive tested!!!!
• Best new introduction 2006

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ScaevolaCarissas Secret

• Proven Winners
• Annual-Veg.
• Full sun
• Compact mounding rather than spreading. Flowers
  held at tip of foliage. Wonderful for containers.
• Beat the pants off NBW

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ToreniaGolden Moon

• Danziger
• Annual-Veg
• Sun or Shade
• Great new color. Bright yellow with
  lavender/purple back

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Wedelia trilobataYellow Dots or Creeping Daisy

• Texas Native
• Annual
• Roots like a weed
• 12 ft. in a year
• Heat? No problem
• Full sun
• Will grow on concrete!

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FOLIAGE ANNUALS
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Acalypha Inferno

• Annual
• Full Sun
• All season color
• More compact and bushy than others
• Excellent in small containers

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AcalyphaCeylon

• Copperplant
• Upright to 9 ft.
• Doesnt need staking
• Great cut foliage
• Likes it hot!

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Alternanthera White Variegated

• Annual
• Sun or Shade
• Fast growing
• Like it much better than Crème de Menthe
• TOUGH!

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Caladium humboldtii

• Mini Caladium
• 6 tall
• Multiple leaves per bulb
• Incredible in containers
• Great mixed with Hosta

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CaladiumMoonlight

• Whitest caladium
• Deep shade
• Keep hot and wet
• Xmas lights

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Gossypium nigrumBlack Cotton

• Deep purple/black foliage
• Pink hibiscus like flowers
• Sun!
• Heat
• Cotton!
• Boll Weevils

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DraceanaLemon Lime

• Punch up deep shade
• Add to groundcover
• Save it
• Fast growing

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Duranta Gold Edge

• Foliage annual
• Full sun or light shade
• Incredibly bright yellow variegation
• Seldom flowers
• Great in containers or mixed with blue or orange

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Eranthemumnigrum Ebony

• Proven Winners
• The hotter and more humid the better
• Not showy alone
• Mix with other colors for best effect
• White flowers

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Hibiscus acetosella Maple Sugar

• Proven Winners
• Annual to 5 ft.
• Dark burgundy foliage all summer doesnt fade
• Prune if it gets too large
• Flowers more than typical species
• Loves the heat!
• Full sun

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Hibiscus acetosella Haight Ashebury

• Proven Winners
• Annual
• Foliage is sprinkled with pale pink
• 4-5 ft. tall
• Containers or as backing color beds

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Hibiscus tiliaceus Tricolor

• Sea Hibiscus
• Annual
• Fast growing
• Unique tricolor foliage
• Few pests
• No flowers

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Pepper Black Pearl

• Ball Seed
• AAS Winner
• Great foliage and fruit
• Wonderful cut flower
• 3 ft. tall
• Full sun and will tolerate light shade!

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Torenia White Moon

• Sun or Shade
• Baskets?
• Bright white in 104 degrees
• Like it best mixed with something

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PepperNuMex Twilight

• Like Xmas Lights from hell!
• Heat
• Sun or light shade
• Spreading habit
• Great branching
• Containers!

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PepperTri-Fetti

• Pass Along now available everywhere
• Bright white, lavender and black
• Fast growing
• Wide plants

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Pseuderanthemum atropupureumPurple Shooting Star

• Annual
• 3 ft. tall
• Incredible dark burgundy foliage
• Star shaped pink flowers in fall
• Pleather

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Plectranthus Sasha

• Or Zulu or Kellys Gold
• Great in shade
• Mix with salmon impatiens
• Drought tolerant!!!
• Really a variegated Swedish Ivy

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Manihot esculentaVariegated Tapioca

• It just doesnt get better!
• Temporary hedge
• Super fast growing
• Prune if it gets too tall
• Propagate?

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PERENNIALS
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AnthemisSuzanna Mitchell

• Blooms of Bressingham
• Perennial to 6
• Yellow white daisies
• Feathery grey foliage
• Long blooming season
• Drought tolerant
• Full sun

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Asarum splendensChinese Wild Ginger

• Evergreen in zone 7
• Deep to light shade
• Spreads
• Great groundcover
• Drought heat tolerant

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Aster oblongifoliusAutumn Aster

• Perennial Zone 6
• Texas native
• Full sun
• Drought tolerant
• Fall blooming
• Prune in summer
• Great in mass
• No Powdery Mildew!
• 4 ft. x 3 ft

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Begonia cucullataHardy Wax Begonia

• Hardy zone 7?? Maybe 6
• Reseeds
• Grows!!!
• White flowers
• Deep shade or full sun

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Barleria cristataPhilippine Violet

• Perennial to zone 7
• Fall blooming perennial
• There are white, pink, and variegated forms
• Full sun to partial shade
• Foliage is leathery

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Calyophus Southern Belle

• Proven Winners
• Perennial
• Full Sun
• Yellow flowers from May to July
• Thick carpet of foliage

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Calamintha nepeta var. nepetaLesser Calamint

• Plant Delights
• Perennial
• Full sun
• Flowers from June to October
• Clouds of pale blue (look white) flowers

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Cuphea micropetalaCandy Corn Cuphea

• Hardy zone7b
• 3 to 5 ft.
• Fall flowering
• Drought tolerant
• Full sun

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Dianella tasmanica

• No burn in full sun
• Deciduous
• Perennial to 10
• More hardy than yellow form
• Sun or shade
• Blue fruit

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Dianthus japonicus

• Funky
• Glossy waxed leaves
• Biennial to annual
• Reseeds
• Blooms from August to November
• Drought tolerant

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EchinaceaDouble Delight

• Most floriferous Ive ever trials
• Fragrant
• Fast growing
• Pale foliage
• Upright stems

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Eupatorium greggiiGreg's Eupatorium

• Texas native
• 18 X 3
• Blue flowers
• Full sun
• Drought resistant
• Butterflies
• Flowers all summer
• SPREADS!!!

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Euphorbia Efanthia

• Proven Winners
• Perennial
• Red Green foliage
• Winter hardy
• Evergreen
• Needs drainage
• Try it in winter containers.

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Euphorbia Helena

• Proven Winners
• Great in containers
• Full sun
• Needs perfect drainage
• Foliage gets bronzer in winter
• Chartreuse flowers

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Gaillardia aestivalis

• Texas native
• Perennial
• Full Sun
• Drought tolerant
• Spreading
• Purple, pink, white or bi-color

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Gaura Geyser series

• Syngenta
• Only gaura I like!
• Heavy flowering
• Compact
• Doesnt go weedy

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HibiscusFantasia

• Fleming Bros.
• Perennial-Veg.
• Large flowers with deep plum bluish flowers
• Heavy branching
• Great group of hibiscus!!!!

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Hibiscus coccineusTexas Star

• Texas native
• Hardy
• Sun
• Wet soil ok
• More fertilizer the bigger and more flowers

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Kostelezkya virginica Salt Marsh Mallow

• Plant Delights
• Perennial
• Full sun
• Pink mini-hibiscus flowers (2) all summer on
  upright plants to 4ft.

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Ipomoea fistulosaMorning Glory BushDwarf

• Hardy to zone 6
• 4-5 ft. tall only
• Comes true from seed
• White Pink forms
• Texas AM

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Leonotis leonurusLions Ear

• Full sun
• 4 ft tall
• Orange flowers in late fall
• Try it mixed with Aster oblongifolius
• Drought tolerant

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Malvaviscus drummondiiFiesta Pam Puryear

• Turks Cap
• Variegated form
• Pink flowered
• White flowered form
• Big Mama!
• New ones coming

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Monardabartlettii x fistulosaPeters Purple

• Perennial
• 6 ft. tall
• No staking
• Mildew resistant
• Long blooming season
• Vibrant purple color
• Not overly invasive

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Muhlenbergia lindheimeri

• Texas native grass
• Hardy to zone 7
• Drought? Not problem.
• Upright
• 5 ft x 5 ft.

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Pavoniahasata or brasiliensis

• Perennial
• Full Sun
• Hardy zone 6
• Tough
• Flowers constantly
• Hedge if leggy

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Pavonia lasiopetalaRock Rose

• Rose pink flowers all summer
• Drought tolerant
• Full Sun
• Shear frequently
• 4 ft. x 4 ft.

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Phlox paniculata 'John Fanick' Summer Phlox

• Greg Grant
• Unknown outside Texas
• Most disease resistant Ive ever tried!
• Stays short, doesnt need staking
• Beautiful two tone pink flowers
• Long flowering season

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Salvia farinaceaHenry Augusta Duelberg

• Greg Grant
• Perennial
• 4 ft. tall
• Taller with bluer and more floriferous flowers
  and larger greener leaves than modern cultivars.

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Salvia oresbia

• Full sun
• Bright pure red flowers
• Drought resistant
• Fast growing
• 3 ft. tall by 4 ft. wide
• Flowers all summer

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Setcreasea pallidaVariegated

• Ok, so its a little over the top
• Great in containers
• Hardy in zone 7

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Tagetes lucidaMexican Mint Marigold

• Perennial
• Full Sun
• You can eat it! Try it with Chicken
• Tarragon substitute
• Flowers in fall
• 2 1/2 ft. tall
• I prune midsummer to keep shorter

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Tradescantia sillamontana

• Perennial
• Fuzzy leaves
• Pink flowers
• Full sun to light shade
• 12 tall
• Spreads

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Zexmenia hispida

• Texas native
• Golden daisies all summer
• 2 ft. x 4 ft.
• Drought tolerant
• Full sun
• Semi-Shrub

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Un-New-Usuals
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Agave ovatifoliaWhales Tongue

• Hardy zone 7
• New Agave to trade!
• Extremely striking
• Fast growing
• Large!
• No pups
• Steely blue and grey

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Agave bracteosaOctupus Agave

• Perennial zone 6
• Sun or Shade
• Container plant par-excellent!
• No spines
• Drought tolerant

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Alocasia m.Jungle Gold

• Guaranteed to brighten up shade
• Incredible in containers!
• How to store through winter?

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Some otherElephant Ears

• A. Borneo Giant
• A. Calidora
• A. New Guinea Gold
• A. Robusta
• A. Sarian
• A. Williams
• A. Green Shield
• A. Portei
• A. Plumbae Nigra
• A. macrorhiza

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Althaea roseaSatin Chiffon series

• Best Ive ever trialed!
• Self cleaning
• Flowers dont ball
• Shear heavily yearly?
• Grow like a perennial

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Albizia julibrissinSummer Chocolate

• Hines Nursery
• Its the Deluxe White Trash Plant!
• Really is a Mimosa
• Burgundy foliage in full sun
• Hot pink flowers
• Full sun

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Musa velutinaPink Velvet

• Flowering banana not a drink!
• Gets 5 ft. tall
• Hardy to zone 7
• Pink bananas peel themselves when ripe
• Full of seeds!
• From seed to flower in one year!

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BananaBordelon

• Agri-Starts
• Perennial
• Full sun
• Flowers!!!
• Burgundy foliage
• Doesnt tatter as bad as other varieties

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BananaLittle Prince

• Dwarf banana
• 3ft. Less in containers
• Hardiness?
• Thick trunks foliage
• How to save
• And one for Troy.

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Begoniawithlacoochee

• Shade Tropical
• Burgundy and grey/green foliage
• White flowers constantly
• 3 to 4 ft. trailing habit
• Picture from Tennessee

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Celtis orientalis Weeping
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CordylineTi Plant

• Got Shade? Or sun
• Need color?
• Great for containers
• Loves it hot humid
• Miss Andrea
• Plantation
• King Arthur
• Ruby
• Wilys Gold

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Ctenanthe lubbesiana Tropical Dragon

• Tropical
• 3 ft. tall
• Takes deep shade and always looks good
• Grows very fast
• Easy to propagate
• Cheap
• Mix with yellow coleus and Pachystachys lutea

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Cestrum parqui Orange Peel

• Willow Leaved Jessamine
• Hardy to zone 7
• Makes great annual container plant
• Flowers all summer
• Slight fragrance
• Pest free

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Erythrina x bidwellii

• Perennial 7 or 8
• Fast growing
• Huge red flowers 3 ft.
• Dies to the ground

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Freesia laxa

• Or sold as Lapeirlousia laxa or Anomatheca
• Fast growing
• Flowers April-May
• Perennial!
• Dry Soil

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Freesia laxa alba

• Or sold as Lapeirlousia laxa or Anomatheca
• Fast growing
• Flowers April-May
• Perennial!
• Dry Soil

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Freesia albaHardy Freesia

• Different plant with same name!
• Fast growing
• Flowers April-May
• Perennial!
• Dry Soil

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Fucraea foetida mediopictaFalse Agave

• When something subtle just wont do!
• Attention grabber
• Non-hardy
• But, its cheap and fast growing

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Heteropterys glabraRedwing

• Zone 8
• South American native
• Shiny green leaves
• Bright yellow flowers with red maple seeds
• Fast growing from seed
• Fun in containers
• Always in bloom/seed

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Jatropha gossypifoliaCotton Leaved Jatropha

• Annual-Seed
• Sun
• Reseeding annual resembling Castor bean.
• 4-5 ft. tall with deep bronze colored new growth.
• Heat and drought resistant
• Stump your fellow gardeners

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PapayaCarica papaya

• Yea, Im nuts
• But 7 ft of growth from a seed in 1 year aint
  bad!
• Cool flowers
• Smells good
• And it stumps everyone!

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Salvia splendensDancing Flame

• Annual
• Red flowers
• Containers
• Heavy on the food and water
• Shade

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Sesbania puniceaRattlebox

• Fast growing from seed
• Flowers first year
• Hardy to zone 7
• Small tree to die back perennial

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Sinningia tubifloraHardy WhiteGloxinia

• Bulb
• Hardy zone 7
• Full sun to light afternoon shade
• Pure white flowers all summer
• Drought resistant

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SyngoniumNeon Robusta

• Better than Caladiums for shade!
• Color just gets better all summer
• Yes, it really is pink!
• Doesnt crater in heat

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Stromanthesanguinea TrioStar

• Variegated foliage
• RED backs to foliage
• Dry or moist shade
• Tropical foliage
• Quick growing
• Pest tolerant
• STRIKING

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Tecoma Sunrise

• Zone 8 maybe 7
• Creamy orange flowers all summer
• 6 ft. in one season
• Full sun

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Thunbergia battescombei

• Hardy in 15 gal. Container for last 5 years!
• True blue flowers
• Rambling growth habit
• Flowers all summer

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Thunbergia gregoriiCanyon Creeper

• Perennial Zone 8?
• Orange Clock Vine
• Vine
• Tender perennial
• From seed or cuttings
• Flowers all summer
• 30 ft.

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Just Remember

• The success
• of your garden
• is built on the compost
• of your failures!!!
• Jimmy Turner
• 1992

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Got the Point?

• www.dallasplanttrials.org
• Favorites Data
• Suppliers area
• Downloadable presentation
• Neil Sperry web Letter
• Neil Sperry Gardening Magazine
• jturner_at_dallasarboretum.org

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Thank You!!!