IRIS pallida 'Aurea Variegata'
(EYE-riss) (PAL-ih-duh) | IRISAV8 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: There is nomenclature confusion in this species! This has distinctly more yellow variegation and is more vigorous than 'Variegata'. Lovely, fragrant, lavender flowers. |
| Zone: 4 |
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IRIS pallida 'Variegata'
(EYE-riss) (PAL-ih-duh) | IRISPV8 |
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| Common Name: Variegated Orris Root |
| Description: Fragrant, lavender-blue flowers; handsome leaves variegated with creamy-white and gray-green. |
| Zone: 4 |
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IRIS setosa subsp. canadensis
(EYE-riss) (say-TO-sa) | IRISCA3 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: Lovely dwarf with purple flowers accented with rich, dark veins; summer flowering. Prefers moist soil. Native in Northeastern U.S. and Eastern Canada. |
| Zone: 4 |
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IRIS sibirica 'Butter & Sugar'
(EYE-riss) (si-BEER-ih-ka) | IRISBS5 |
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| Common Name: Flag, Fleur-Des-Lis |
| Description: RHS Award of Garden Merit. A rebloomer with creamy standards and butter-yellow falls. |
| Zone: 4 |
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IRIS sibirica 'Caesar's Brother'
(EYE-riss) (si-BEER-ih-ka) | IRISCB5 |
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| Common Name: Flag, Fluer-De-Lis |
| Description: Rich, deep blue variety. |
| Zone: 4 |
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IRIS sibirica 'Kaboom'
(EYE-riss) | IRISKA5 |
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| Common Name: Fleur-De-Lis |
| Description: Large, double, blue-violet with gold and white sunburst; tetraploid. |
| Zone: 3 |
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IRIS versicolor
(EYE-riss) (VER-sih-kuh-lor) | IRISVE3 |
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| Common Name: Blue Flag |
| Description: Native, wild iris. Blue blooms from June-July. |
| Zone: 3 |
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KNAUTIA macedonica 'Mars Midget'
(NOT-ee-ah) (mass-eh-DON-ih-kah) | KNAUMM3 |
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| Common Name: |
| Description: A profusion of brilliant ruby-red flowers June until frost on compact, dwarf plants. Attractive to butterflies; good for cutting. |
| Zone: 5 |
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KNAUTIA macedonica 'Mars Midget'
(NOT-ee-ah)(mass-eh-DON-ih-kah) | KNAUMM5 |
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| Common Name: |
| Description: A profusion of brilliant ruby-red flowers June until frost on compact, dwarf plants. Attractive to butterflies. Good for cutting. |
| Zone: 5 |
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KNIPHOFIA caulescens
(nee-FOF-ee-a) (kaw-LES-enz) | KNIPCA3 |
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| Common Name: Regal Red Hot Poker |
| Description: 2010 Plant Select®. RHS Award of Garden Merit. Gorgeous, blue-green rosettes of foliage are garden worthy in their own right. By late summer the clump is crowned with glowing crimson, golden, and ivory torches that create a focal point in the border or xeriscape. Needs well-drained soil throughout winter. |
| Zone: 5 |
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KNIPHOFIA uvaria 'Flamenco'
(nee-FOF-ee-a)(oo-VAH-ree-a) | KNIPFL5 |
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| Common Name: Red Hot Poker, Tritoma, Torch Lily |
| Description: Beautiful 8", early flowering spikes of creamy-white, orange-yellow and red. Excellent cut flower. |
| Zone: 5 |
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KNIPHOFIA uvaria 'Flamenco'
(nee-FOF-ee-a) (oo-VAH-ree-a) | KNIPFL3 |
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| Common Name: Tritoma, Red Hot Poker, Torch Lily |
| Description: Beautiful, 8", early flowering spikes of creamy-white, orange-yellow, and red. Excellent cut flower. |
| Zone: 5 |
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LATHYRUS latifolius Mix
(LATH-er-us) (lat-ih-FOE-lee-us) | LATHMI3 |
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| Common Name: Sweet Pea |
| Description: Assorted colors for ground cover; trailing 6-9' once established. |
| Zone: 4 |
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LAVANDULA angustifolia 'Hidcote'
(lav-AN-dew-lah)(an-gus-tih-FOE-lee-ah) | HBLAHI5 |
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| Common Name: Lavender |
| Description: RHS Award of Garden Merit. Choice, compact plant; deep, blue-purple flowers. Excellent landscape plant. |
| Zone: 5 |
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LAVANDULA angustifolia 'Munstead'
(lav-AN-dew-lah)(an-gus-tih-FOE-lee-ah) | HBLAMS5 |
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| Common Name: Lavender |
| Description: Attractive, fragrant, gray-green foliage with large abundant flowers. |
| Zone: 5 |
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LEUCANTHEMUM 'Alaska'
(lew-KAN-theh-mum) | LEUCAL5 |
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| Common Name: Shasta Daisy |
| Description: Large, showy, single, white flowers in summer. |
| Zone: 5 |
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LEUCANTHEMUM 'Alaska'
(lew-KAN-theh-mum) | LEUCAL3 |
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| Common Name: Shasta Daisy |
| Description: Large, showy, single, white flowers in summer. |
| Zone: 5 |
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LEUCANTHEMUM 'Becky'
(lew-KAN-theh-mum) | LEUCBE5 |
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| Common Name: |
| Description: 2003 PPA Plant of the Year! Long-lasting, large, 2 1/2-3", single, white daisies with stout stems from mid to late summer. Excellent cut. Very heat tolerant; exceptionally long-lived plants. Vegetatively propagated. Named for Becky Steward of Decatur, GA. |
| Zone: 5 |
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LEUCANTHEMUM Sweet Daisy™ Birdy
(lew-KAN-theh-mum) | LEUCSD5 |
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| Common Name: Daisy |
| Description: 2021 AAS Winner. This leucanthemum is a robust perennial with long lasting white flowers with a yellow disc. Blooms last spring until fall. |
| Zone: 5 |
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LEUCANTHEMUM x 'Exhibition'
(lew-KAN-theh-mum) | LEUCEX3 |
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| Common Name: Shasta Daisy |
| Description: Semi-double, white flowers on strong stems that bloom over a long period of time. Great cut flower.
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| Zone: 5 |
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LEUCANTHEMUM x 'Exhibition'
(lew-KAN-theh-mum) | LEUCEX5 |
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| Common Name: Shasta Daisy |
| Description: Semi-double, white flowers on strong stems that bloom over a long period of time. Great cut flower. Good in sun to part shade. |
| Zone: 5 |
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LEUCANTHEMUM x superbum 'Snowcap'
(lew-KAN-theh-mum) (soo-PER-bum) | LEUCSC3 |
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| Common Name: |
| Description: Large, white flowers with a yellow eye above compact, dark green foliage. Deadheading will extend the already long bloomtime. |
| Zone: 4 |
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LEUCANTHEMUM x superbum 'Snowcap'
(lew-KAN-theh-mum) | LEUCSC5 |
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| Common Name: Shasta Daisy |
| Description: Large, white flowers with a yellow eye above compact, dark green foliage. Deadheading will extend the already long bloom time. |
| Zone: 4 |
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LIATRIS aspera
(lee-AT-tris) (ASS-per-ah) | LIATAS3 |
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| Common Name: Rough Blazing Star |
| Description: Broadly rounded, pink flower heads with curled margins. Enjoys sandy soil and dry, open spaces. |
| Zone: 3 |
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LIATRIS ligulistylis
(lee-AT-tris) (lig-yew-lis-STY-lis) | LIATLI3 |
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| Common Name: Large-headed Liatris |
| Description: 2017 GreatPlants™ Perennial of the Year. Outstanding, Great Plains native. Large, purple florets on long spike with terminal flower being the largest. Blooms July to September. An Eastern South Dakota ecotype. |
| Zone: 4 |
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LIATRIS microcephala
(lee-AT-tris) (mik-ro-SEF-a-la) | LIATMI3 |
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| Common Name: Tiny-headed Liatris, Dense Gentian |
| Description: Multi-stemmed, Southeastern U.S. native; excellent landscape plant with lavender flowers. |
| Zone: 3 |
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LIATRIS punctata
(lee-AT-tris) (punk-TA-ta) | LIATPU3 |
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| Common Name: Blazing Star, Gayfeather |
| Description: Numerous, pink flower stalks mid-late summer. Native to dry soils of the Western prairies. |
| Zone: 3 |
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LIATRIS pycnostachya
(lee-AT-tris) (pik-no-STAK-ee-a) | LIATPY3 |
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| Common Name: Thickspike Gayfeather |
| Description: Rosy-purple flower spikes on 3-4' stalks; fine cut flowers. |
| Zone: 3 |
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LIATRIS pycnostachya 'Eureka'
(lee-AT-tris) (pik-no-STAK-ee-a) | LIATEU3 |
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| Common Name: Button Snakeroot |
| Description: 2006 GreatPlantsTM Release! Outstanding native of Great Plains wet prairies. Bred and selected by Dr. Sotero Salac and kept going by Dr. William Gustafson, both of UNL. Breath-taking in the garden and vibrantly vivacious as a florist's crop. Produces a 1'+ dense spike crowded with reddish-purple, long lasting flowers. |
| Zone: 3 |
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LIATRIS spicata
(lee-AT-tris) (spih-KAH-tah) | LIATSP3 |
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| Common Name: Spiked Gayfefather |
| Description: Early blooming native; lavender flowers. |
| Zone: 3 |
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