Notes
Slide Show
Outline
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Gardening
in Hell
4
Jimmy Turner
Director of
Horticulture Research
& Garden Designer
  • Plant Trials
  • Collections
  • Garden Design
  • Purchase plants
  • Budget
  • Plant Geek….
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Information &
Handouts
  • DallasPlantTrials.org
  • jturner
    @dallasarboretum.org
  • Downloadable slideshow next week
  • Sign up for monthly newsletter from trials
  • La-Tx


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Garden
by the numbers
  • 4 change outs per year
  • 500,000 Bulbs planted per year
  • 2.4 million annual plants
  • Open 362 days per year
  • 1982 opened as a public botanical garden
  • 475,000 visitors per year
  • 16,000 members
  • 30 Horticulture staff
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Carex Cows (Longhorns)
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Dallas Blooms Flower Power!
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Dallas Arboretum
Plant Trials
  • Bulb Trials
  • All America Selection
    (only Trial in Texas)
  • Annual Trials
  • Perennial (more please)
  • Woody Collections
  • 3,000 varieties in trial 2008
  • Container Trials (1500)
  • Data taken every 2 weeks year around
  • Information on all trials at
  • www.dallasplanttrials.org
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Trial by Flower!
  • If we can’t kill it, no one can!
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Why Trial Plants in Dallas?
  • If we can’t KILL it no one can!
  • High temps (night and day both)
  • 60 + 100+ days
  • 50 degree shifts
  • Wet & Dry (10” rain in 2 hrs) 30” avg
  • Long growing season  (245 day)
  • Soil- pH  (8.5 to 9)
  • Zone cusp of 7 & 8
  • Humidity from 64 to 75 % on average
  • Clay soil
  • Windy (avg 13 mph)
  • June to Oct no clouds, no rain
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AWARDS
  • Arboretum
  • Approved



  • North Texas Winners Circle



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Perennials for
Purgatory
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Agastache
Heatwave Hot Pink
  • Yoder
  • Zone 6
  • 36” x 24”
  • Sun
  • Flower spikes are full enough to see
  • Reblooms well
  • Takes the heat
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Agastache
Tutti Frutti
  • Yoder-Greenleaf
  • Zone 6
  • 36” x 24”
  • Sun
  • Large spikes all summer
  • Deep color doesn’t fade
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Agastache
Acapulco series
  • Bodger
  • Zone 6
  • Sun
  • 24” x 18”
  • Compact selection with deep intense colors
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Anthemis tinctoria
Susanna Mitchell
  • Blooms of Bressingham
  • Zone 3
  • 18” X 36”
  • Sun
  • Flowers for long period
  • Drought tolerant
  • Spreads
  • Doesn’t melt out!


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Asarum splendens
Chinese Wild Ginger
  • Hardy to zone 6
  • Dry shade
  • 10” X 24”
  • Evergreen foliage
  • Silver splashed deep green leaves
  • Naugahyde!


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Aster oblongifolia
Texas or Aromatic Aster
  • Sun
  • Zone 3
  • Texas native
  • 36” X 36”
  • Will need to be pruned
  • Bluish purple
  • Powdery mildew immune
    • October Skies
    • Fanny’s Aster
    • Raydon’s Favorite
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Aster dumosus
‘Sapphire’
  • Proven Winners
  • Sun
  • Zone 4 to 8
  • Earlier then A. oblongifolius
  • Compact and mounded
  • Deep purple-blue
  • Oh-and I HATE most asters
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Aster praealtus
Willow Aster
  • Mountain States
  • Zone 5
  • 48” X 48”
  • Sun to part shade
  • Fall flowering for 8 weeks
  • Texas native
  • Symphyotrichum praealtum
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Aster carolinianus
Climbing Aster
  • Vines to 6-8 ft.
  • Hardy to zone 7
  • 6 to 7 weeks of color
  • Use it on an arbor
  • Mingle it with clematis
  • Remember vertical gardening is in


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Bergenia ciliata
Hairy Bergenia
  • Zone 7 hardy
  • Shade
  • 12” X 24”
  • Only Bergenia I have luck with
  • Needs well drained soil and steady moisture
  • Attractive pink flowers in early spring


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Calamintha
nepeta var. nepeta
Lesser Calamint
  • Zone 5
  • 20” x 24”
  • Full sun
  • Flowers from June to October
  • Constant clouds of white flowers


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Calylophus hartwegii
‘Southern Bell’
Sundrops
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Campanula
‘Pink Octopus’
  • Terra Nova
  • Zone 5
  • 8” x 72”
  • Never thought it would live
  • Spreads
  • Flowers all spring and into summer
  • Oh it spreads
  • Did I mention it spreads?
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Cuphea micropetala
Cigar Flower
  • Full Sun
  • Zone 7b
  • 5ft x 4ft
  • Fall flowering
  • Drought tolerant
  • Hummingbird magnet


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Dianthus ‘Dessert
Cranberry Ice’
  • Yoder Greenleaf
  • Zone 5
  • 12” x 18”
  • Full sun
  • Evergreen blue foliaged mats
  • Early spring flowers
  • Likes alkaline soil
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TAKE A BREATH  1/4 way
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Dianthus
‘Neon Star’
  • Yoder
  • Zone 5
  • 8” x 12”
  • Full sun
  • Evergreen blue foliaged mats
  • Early spring flowers
  • Likes alkaline soil
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Echinacea
‘Double Delight’
  • Holtex
  • Zone 4
  • 16” X 12”
  • Multi-branched plants
  • Repeat flowers
  • Fragrant
  • Fast growing
  • Pale foliage
  • Upright stems
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Echinacea
‘Fragrant Angel’
  • Terra Nova
  • Zone 4
  • 20” x 24:
  • Large pure white flowers
  • Doesn’t flop
  • Flowers for long period
  • Scented
  • Fast growing


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Echinacea
‘Hope’
  • Terra Nova
  • Zone 4
  • 24” x 24”
  • Sun
  • Large flat topped pale pink flowers
  • Fragrant
  • Fast growing
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Erigeron karvinskianus ‘Stallone’
  • Kieft
  • Zone 5
  • 12” x 24”
  • Perennial Sun
  • WaterWise perennial that flowers all summer
  • Tough!


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Eupatorium greggii
Texas Ageratum
  • Texas native
  • 24” X 3’
  • Zone 7
  • Blue flowers
  • Full sun
  • Drought resistant
  • Butterflies
  • Flowers all summer
  • SPREADS!!!
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Eupatorium havanense
Fragrant Mist Flower
  • Texas native
  • Actually woody
  • Full sun to light shade
  • Zone 7
  • Alkaline and drought tolerant
  • Fall flowering
  • Fragrant
  • Butterflies


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Euphorbia
‘Kalipso’
  • Proven Winners
  • Zone 6
  • Sun
  • I like it best in containers
  • Drought tolerant
  • Great for winter interest
  • Gorgeous flowers
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Euphorbia
‘Efanthia’
  • Proven Winners
  • Zone 6
  • Red & Green foliage
  • Xmas colors!
  • Try it in winter containers.
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Euphorbia ‘Helena’s Blush’
  • Proven Winners
  • Zone 6
  • Great in containers
  • Full sun
  • Needs perfect drainage
  • Foliage gets bronzer in winter
  • Chartreuse flowers
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Gaillardia aestivalis var. winkleri
‘Grape Sensation’
  • Full sun
  • Zone 7
  • 12” X 24”
  • Drought tolerant
  • Species comes in white, pink, bicolor, and purple
  • Endangered in the wild
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Hedychium coronarium
‘Pink V’
  • Zone 7
  • Full sun to light shade
  • 6ft x 4ft
  • Incredible fragrance
  • Better than Cannas
  • Fertilize!
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Hedychium gardnerianum 'Compactum'
  • Zone 7
  • Full sun to light shade
  • 48” x 36”
  • All summer color
  • Huge flower heads
  • Summer night fragrance
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Hibiscus coccineus
Texas Star
  • Texas Native
  • Full sun
  • Zone 6
  • 8 ft. if fertilized
  • Upright
  • Bog plant to normal garden



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Hibiscus mutabilis
‘Flora Plena’
Confederate Rose
  • Zone 7
  • Large peony like flowers
  • 6 ft. tall
  • Freezes to the ground in severe winters
  • Flowers change as they age
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Kostelezkya virginica
Salt Marsh Mallow
  • Plant Delights
  • Zone 5
  • Full sun
  • Pink mini-hibiscus flowers (2”) all summer on upright plants to 5 ft.
  • If you can’t grow Lavatera..
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Leonotis leonurus
Lion’s Ear
  • Full sun
  • Zone 7b
  • 4 ft tall
  • Orange flowers in late fall
  • Try it mixed with Aster oblongifolius
  • Drought tolerant
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Farfugium japonicum
Jitsuko’s Star
  • Plant Delights
  • Zone 7
  • Shade
  • Glossy foliage
  • Double yellow flowers in late summer into fall
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Farfugium japonicum
‘Cristata’
  • Zone 7
  • Crested Leopard plant
  • 2 ft. tall
  • Shade
  • 12” Glossy leaves
  • Yellow Daisy flowers in fall
  • Container Plant
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Farfugium japonicum ‘Gigantea’
  • Zone 7
  • Shade
  • Giant “unspotted” Leopard plant
  • 2 ft. tall
  • Shade
  • 12” Glossy leaves
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Malvaviscus drummondii
‘Pam Puryear’
‘Fiesta’
  • Greg Grant
  • Zone 7
  • Shade or Sun
  • Pink flowered Turk's cap
  • Can’t beat it for summer color


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Malvaviscus drummondii
‘Big Momma’
  • Greg Grant
  • Zone 7
  • 6 ft. tall
  • 2 ” flowers
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Monarda
bartlettii x fistulosa
‘Peter’s Purple’
  • Zone 6
  • 6 ft. tall
  • No staking
  • Mildew resistant
  • Long blooming season
  • Vibrant purple color
  • Not as invasive as others
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Pavonia braziliensis or hastata
Brazilian Rockrose
  • Full sun
  • Zone 7
  • Pale pink flowers
  • Almost evergreen
  • Shear often
  • Drought resistant
  • Don’t prune to ground
  • 4 ft. x 4 ft.


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Pavonia lasiopetala
Rock 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
  • Zone 4
  • Best summer phlox
  • Mildew resistant
  • Full sun
  • Scented
  • 2 1/2 ft. x 3ft.
  • Virtually sterile
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Salvia farinacea
‘Henry Duelberg’
&
‘Augusta Duelberg’
  • Greg Grant
  • Zone 7b
  • DROUGHT tough
  • This isn’t anything like ‘Victoria Blue’
  • 36” x 36”
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Salvia greggi
‘Teresa’
  • Zone 7
  • Full sun
  • Incredible pale pink to white flowers
  • Great compact habit
  • Tough
  • One of my favorites of this group
  • Drought tolerant, but needs some water to bloom
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Salvia oresbia or darcyi
Mexican Sage
  • Full sun
  • Zone 5b
  • 24” x 36”
  • Bright pure red flowers
  • Drought resistant
  • Fast growing
  • Flowers all summer
  • Hummingbird Hotel
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Salvia transylvanica
‘Blue Spires’
  • Sun
  • Hardy zone 4
  • 24” x 24”
  • Why doesn’t anyone grow this?
  • Better than any S. x superba variety
  • Likes it dry and hot!!!
  • Tall 2 ft. spikes of flowers


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GLAZED OVER YET????  1/2 WAY
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Sedum
‘Mr. Goodbud’
  • Terra Nova
  • Zone 3
  • 12” x 12”
  • Full sun or light shade
  • Best “large” sedum we’ve tested
  • Doesn’t flop and flowers forever!
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Sinningia tubiflora
  • Yucca Do
  • Zone 7 hardy
  • 24” x 36”
  • Full Sun or Light Shade
  • White flowers all summer
  • Spreading
  • Very drought tolerant
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Sinningia ‘Tante’
  • Yucca Do Nursery
  • Zone 7b
  • 20” x 18”
  • Full Sun or Light Shade
  • Peach flowers
  • Mounding
  • Great flower power!
  • Very drought tolerant
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Verbena rigida
‘Santos’
  • Kieft
  • Full Sun
  • Zone 7
  • Rhizomatous 12” x ….?
  • Flowers all summer
  • Vigorous!-“Kudzu Queen” Award!
  • Exceptionally drought tolerant
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Thymophylla pentachaeta
Golden Dyssodia
  • Full sun
  • Zone 6
  • Texas native
  • 8” x 12”
  • Looks like Dahlberg Daisy but perennial
  • Nothing eats it!
  • Super drought tolerant
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Zexmenia hispida
Wedelia texana
  • ADYC- Texas native
  • Zone 6
  • Shrub actually 3 ft. x 3 ft.
  • Full sun to light shade
  • Drought tolerant
  • Blooms all summer
  • No coreopsis can keep up with it
  • No disease or insect problems
  • Drought tolerant
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Passion
on the
Prairie
“Mono-grami”
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Muhlenbergia lindheimeri
Lindheimer’s Muhly
  • Full Sun
  • Zone 7
  • 48” x 36”
  • Soft aqua blue foliage
  • Very upright
  • Nice winter interest
  • Definitely drought resistant
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Panicum amarum
‘Dewey Blue’
  • Hoffman Nursery
  • Zone 2
  • 48” x 30”
  • Sun
  • Incredible foliage!
  • Found by Ricke Darke
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Pennisetum purpureum
Elephant Grass
‘Prince’ & ‘Princess’
  • Zone 7
  • Sun
  • Incredible color
  • Thick leaves
  • Prince is taller
  • Drought tolerant
  • Overhead watering may cause rust
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Screw
in a
Bulb!
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Achimenes ‘Purple King’
  • Bulb
  • Zone 7b
  • 6” X 12”
  • Light shade
  • Will grow anywhere you can an impatiens
  • Slow to emerge
  • Try it in moss baskets
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Achimenes ‘Blue Sparks’
  • Zone 7b
  • Brent & Becky’s
  • Light shade
  • Ice blue flowers
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Eucomis comosa
Oakhurst
Purple
Pineapple Lily
  • Terra Nova
  • Zone 7
  • 36” X 24”
  • Foliage and flowers
  • Dig bulbs up or move pot to basement to save further north
  • Afternoon shade
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Gloxinia nematanthodes ‘Evita’
  • Perennial zone 7 south
  • Light Shade
  • 1' tall x 1' wide
  • Trailing
  • 1" long bells of brilliant orange-red
  • spreads by above ground stolons
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Habranthus robustus
‘Russell Manning’
  • Hardy zone 7b
  • 3” trumpet shaped pale pink flowers
  • Blue green foliage
  • Flowers heavily several times per season
  • 1 foot tall
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Hippeastrum x johnsonii
Hardy Amaryllis
  • Bulb
  • Zone 6
  • Full sun to light afternoon shade
  • Easy to grow
  • Don’t bury too deep must have good drainage
  • Likes to be root bound
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Hymenocallis ‘Tropical Giant’
  • Bulb
  • Zone 7
  • 48” x  48”
  • Full sun to light shade
  • Fragrant white flowers all summer
  • Tropical glossy foliage
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Rhodophiala bifida
Oxblood Lily
  • Bulb-Amaryllid
  • Fall flowering
  • Zone 7
  • 12” tall
  • Sun to light shade
  • Will outlive you


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Tempting Temperennials
&
Tropicals
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Alocasia macrorrhizza
Borneo Giant
  • Agri-Starts
  • Zone 7b
  • Sun or shade depending on water
  • Was “this” big from a 72 liner
  • HUGE leaves
  • Thick leaves don’t get tattered


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Alocasia
New Guinea Gold
  • Agri-Starts
  • Zone 8
  • Shade
  • Yellow variegated foliage once it heats up
  • Every plant is different
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Alocasia
Jungle Gold
  • Shade
  • Zone 7b
  • The sexiest aroid alive
  • Best back-lit
  • Impossible to find
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Colocasia gigantea
Thailand Giant
Elephant Ear
  • Zone 7b
  • Shade
  • BIG 8 ft.
  • Grows fast
  • Grey cast to leaves
  • Easy to overwinter
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Colocasia
‘Cranberry Stem’
  • Agristarts
  • Zone 7
  • Full Sun or light shade
  • Likes lots of water
  • Better than red stem
  • Put it in a pot so you can see the stems!
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Brugmansia ‘Charles Grimaldi’
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Clerodendron bungei
‘Pink Diamond’
Cashmere Bouquet
  • Pride of Place Plants
  • Full Sun to light shade
  • Zone 7
  • 36” x ????
  • Best in a container
  • Mexican Hydrangea
  • Blooms all summer
  • Smells…
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Dianella tasmanica
  • No burn in full sun
  • Deciduous
  • Zone 8b
  • More hardy than yellow form
  • Sun or shade
  • Blue fruit
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Dianella caerulea
‘Cassa Blue’
  • Foremost Co.
  • Zone 7
  • Full sun to light shade
  • Blue Flax Seed Lily
  • Drought tolerant
  • This one actually puts on a nice floral show
  • Evergreen
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Fatsia japonica
‘Spider Web’
  • Terra Nova
  • Zone 7
  • Evergreen
  • Shade
  • 4 ft X 5 ft
  • Attractive white flowers


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Hibiscus calyphyllus ‘Cole’s Gold’
  • Perennial zone 8 south
  • Yellow flowers with maroon center
  • Fuzzy leaf
  • Resembles Hibiscus mutabilis


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Musa
‘Little Prince’
  • Tropical-Sun
  • Zone 7 but easy to bring in
  • 3 ft. x 3 ft.
  • Grows to fit the pot
  • No it doesn’t make bananas
  • Great house plant!
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Musa
‘Bordelon’
  • Agri-Starts
  • Zone 7
  • Full sun
  • Flowers!!!
  • Burgundy foliage
  • Doesn’t tatter as bad as other varieties
  • Takes the heat better than the “Hardy” types
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LAST GASP 3/4 WAY
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Tagetes lucida
Mexican Mint Marigold
  • Full Sun
  • 3 ft x 2 ft
  • Zone 8
  • You can eat it! Try it with Chicken
  • Flowers in fall
  • Prune midsummer to keep shorter
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Tecoma
x ‘Orange Jubilee’
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Tecoma x ‘Sunrise’
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Tecoma x ‘Sunrise’Ô
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Tecoma ‘Sierra Apricot’
  • Zone 7
  • New Release this year
  • Mountain States Wholesale Nursery
  • Peachy Apricot blush on the buds and backs of flowers
  • Vigorous and heavy flowering
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Galphimia gracillis or Thyralis
Golden Showers
  • Zone 7b
  • 48” x 36”
  • Full Sun
  • Flowers constantly
  • Loves the heat
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No Doubt
Drought
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Agave bracteosa
Squid Agave
  • Will grow where you plant Hosta
  • Zone 7b
  • 2 ft to 2 ft
  • Container plant!
  • No stickers!
  • Incredible flowers


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Beschorneria septentrionalis
False Yucca
  • Shade or full sun
  • Zone 7b
  • 20” X 48”
  • No spines
  • Incredible flowers and stems
  • Like it with Hostas


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Hesperaloe
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xManfreda
‘Macho Mocha’
  • Yucca Do Nursery
  • Zone 8a
  • Sun or shade
  • 6 ft. tall in flower
  • 2’ x 3’
  • Foliage is persistent and colors in cool weather



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xManfreda ‘Macho Mocha’
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Manfreda sp.
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Un-“New”-Usuals
156
Acalypha monostachya ‘Raspberry Fuzzies’
  • Mountain States
  • Zone 7
  • Full sun
  • Bronze foliage and red feather duster flowers
  • 12” x 36”
  • Fall flowering


157
Cestrum parqui
&
‘Orange Peel’
  • Willow Leaved Jessamine
  • Hardy to zone 7
  • Makes great annual container plant
  • Flowers all summer
  • Slight fragrance
  • Pest free
158
Dianthus japonicus
  • Perennial
  • Shiny foliage
  • Reseeds
  • Great for dry areas


  • Blooms in the hottest part of the year
159
Erythrina x bidwillii
Coral Bean
  • Sun
  • Zone 7
  • 6 ft. x 5 ft
  • It is a leaner
  • Ugly Duckling Factor
  • Flowers all summer
  • Thorns
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Heteropterys glabra
Red Wing
  • Zone 7
  • Vine to bush
  • Yellow flowers
  • Red maple like seeds
  • Flowers all summer in full sun
  • Number one asked about plant!
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Jatropha gossypifolia
  • Reseeding annual
  • Loves the heat
  • Castor bean replacement
  • 4-5’ x 3’
  • GLOSSY burgundy leaves changing to green
  • Explosive seeds


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Ipomoea fistulosa
Bush Morning Glory
  • TAMU-Jerry Parsons
  • Zone 7
  • 5 ft. x 5 ft.
  • Dwarf white flowered form
  • Full sun
  • From bog to dry turf area
  • All summer 5” white trumpets
  • Don’t plant in Florida
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Manihot esculenta
Var. Tapioca
  • Annual-Veg
  • Burning Blistering Sun
  • Tough!
  • Colorful and different
  • 5 ft. tall and wide
  • It’s finally available and no one will buy it!
  • Arboretum Approved
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Got the Point?
  • www.dallasplanttrials.org


  • jturner@dallasarboretum.org


  • Thank you Dr. Dave Beattie





  • “The success of my garden
    is built on the compost
    of my failures”
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