RATIBIDA columnifera 'Red'
(rah-TIB-ih-dah) (kol-um-NEE-fer-a) | RATICR3 |
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| Common Name: Mexican Hat |
| Description: Bushy plant; red, drooping petals around a central cone. |
| Zone: 4 |
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RATIBIDA columnifera 'Yellow'
(rah-TIB-ih-dah) (kol-um-NEE-fer-a) | RATICY3 |
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| Common Name: Upright Prairie Coneflower |
| Description: Yellow petals surround 2" cone. |
| Zone: 4 |
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RATIBIDA pinnata
(rah-TIB-ih-dah) (pin-NAY-ta) | RATIPI3 |
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| Common Name: Gray-headed Coneflower |
| Description: Bright yellow rays droop down around stalk. |
| Zone: 4 |
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RHIPSALIS salicornioides
(rip-SAL-is)(sal-ih-CORN-ee-oy-deez) | RHIPSA3 |
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| Common Name: |
| Description: Also known as "dancing bones" and "drunkards dreams" make excellent filler plants. Prefers filtered light and shade, great in combo planters. |
| Zone: 10 |
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ROSA Miniature Assortment
(RO-sa) | ROSAAS5 |
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| Common Name: |
| Description: Let us choose a good selection of colors, all labeled by variety. Some are no longer available individually.
Tiny-leaved, nearly continuously flowering, small bushes that can be trained to desired habit. |
| Zone: 5 |
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ROSULARIA chrysantha
(ros-uh-LAY-ree-a) (kris-ANTH-a) | ROSUCH3 |
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| Common Name: |
| Description: Small, ornamental rock garden plant that grows like Hen & Chicks. Yellow flowers. For sunny, dry location or rock garden. |
| Zone: 5 |
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ROSULARIA muratdaghensis
(ros-uh-LAY-ree-a) (mur-at-dag-EN-sis) | ROSUMU3 |
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| Common Name: |
| Description: Rosette-forming Sedum cousin is a fine addition providing texture in the rock garden or trough. Its rich, dark green clumps of rosettes give class to any well-drained, sunny planting. |
| Zone: 5 |
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ROSULARIA serpentinica
(ros-uh-LAY-ree-a) (ser-pen-TIN-ih-ka) | ROSUSR3 |
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| Common Name: |
| Description: Small rosettes resembling Hen & Chicks have bronze-red coloration. Dark green leaves that turn a dull red in summer. Native to Turkey. |
| Zone: 5 |
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ROTHECA myricoides 'Ugandense'
| ROTHUG4 |
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| Common Name: Butterfly Bush |
| Description: (Name changed from CLERODENDRON ugandensis)
Unusual, two-toned,'butterfly-like' flowers of violet-blue and pale blue all season on erect, tropical shrub. Great for patio tub! |
| Zone: 9 |
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RUDBECKIA (DENVER DAISY ™)
(rud-BEK-ee-ah) | RUDBDD3 |
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| Common Name: |
| Description: 2009 Plant Select®. Striking, dark eyed, long-rayed, golden daisy hybridized by Benary from native Rudbeckia hirta. This showy plant commemorates the 150th Anniversary of the founding of Denver. Short-lived; best treated as an annual. |
| Zone: 3 |
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RUDBECKIA 'American Gold Rush' PP#28,498
(rud-BEK-ee-ah) | RUDBAG5 |
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| Common Name: |
| Description: AAS Winner. This Rudbeckia is a heavy bloomer with shades of yellow flowers in mid-summer. Resistant to Septoria leaf spot. |
| Zone: 4 |
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RUDBECKIA fulgida 'Goldsturm'
(rud-BEK-ee-ah) (full-jih-dah) | RUDBGO1 |
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| Common Name: |
| Description: 1999 PPA Plant of the Year! RHS Award of Garden Merit. Large, deep yellow flowers with bronzy-black cone center. Forms nicely branched plants. Superior, hardy variety. |
| Zone: 3 |
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RUDBECKIA fulgida 'Goldsturm'
(rud-BEK-ee-ah) (full-jih-dah) | RUDBGO5 |
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| Common Name: |
| Description: 1999 PPA Plant of the Year! RHS Award of Garden Merit. Large, deep yellow flowers with bronzy-black cone center. Forms nicely branched plants. Superior, hardy variety. |
| Zone: 3 |
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RUDBECKIA fulgida 'Goldsturm'
(rud-BEK-ee-ah) (full-jih-dah) | RUDBGO3 |
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| Common Name: |
| Description: 1999 PPA Plant of the Year! RHS Award of Garden Merit. Large, deep yellow flowers with bronzy-black cone center. Forms nicely branched plants. Superior, hardy variety. |
| Zone: 3 |
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RUDBECKIA fulgida var. fulgida
(rud-BEK-ee-ah) (full-jih-dah) | RUDBFV3 |
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| Common Name: |
| Description: Flowers later than 'Goldsturm' by two-three weeks. |
| Zone: 3 |
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RUDBECKIA fulgida var. speciosa
(rud-BEK-ee-ah) (full-jih-dah) | RUDBFS3 |
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| Common Name: |
| Description: RHS Award of Garden Merit. Taller than 'Goldsturm', also longer blooming and more persistent with longer lasting flowers. |
| Zone: 3 |
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RUDBECKIA hirta
(rud-BEK-ee-ah) (HER-tah) | RUDBHI3 |
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| Common Name: Black-Eyed Susan |
| Description: Golden-orange, daisy-like wildflower. Usually short-lived. |
| Zone: 4 |
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RUDBECKIA hirta 'Prairie Sun'
(rud-BEK-ee-ah) (HER-tah) | RUDBPS3 |
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| Common Name: |
| Description: Striking, 5", 'light green-eyed' flowers whose golden-yellow petals are tipped primrose yellow. Easy to grow; best treated as an annual. Branching plants, excellent in border, container, or cutting garden. |
| Zone: 5 |
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RUDBECKIA maxima
(rud-BEK-ee-ah) (MAKS-ih-mah) | RUDBMX3 |
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| Common Name: |
| Description: Incredible wildflower. Tall, narrow plant with glaucous leaves to 10". Flowers have 4-6" cones with bright yellow petals. |
| Zone: 5 |
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RUDBECKIA missouriensis
(rud-BEK-ee-ah) (mi-sur-ee-EN-sis) | RUDBMI3 |
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| Common Name: Missouri Black-Eyed Susan |
| Description: Large flowered bouquets of bright yellow flowers above foliage mound of fuzzy leaves. Prefers dry, well-drained soils. |
| Zone: 4 |
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RUDBECKIA nitida 'Herbstsonne'
(rud-BEK-ee-ah) (NI-ti-da) | RUDBHE5 |
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| Common Name: |
| Description: RHS Award of Garden Merit. Bright yellow, single flowers in fall on spectacular, tall 'back of the border' plants. |
| Zone: 4 |
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RUDBECKIA subtomentosa
(rud-BEK-ee-ah) (sub-to-men-TO-sa) | RUDBSU3 |
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| Common Name: Sweet Coneflower |
| Description: Taller cousin of the 'Black Eyed Susan'; abundant, yellow flowers with shimmering brown centers in a brilliant burst of color that lasts for weeks July-September. Strong, outstanding perennial! |
| Zone: 3 |
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RUDBECKIA triloba 'Blackjack Gold'
(rud-BEK-ee-ah) | RUDBBJ3 |
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| Common Name: |
| Description: This late bloomer for the fall garden is heavily branched with yellow-gold flowers. Very long lived. |
| Zone: 3 |
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RUDBECKIA triloba 'Prairie Glow'
(rud-BEK-ee-ah) (try-LO-bah) | RUDBPG3 |
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| Common Name: |
| Description: Prairie Glow has irresistible flowers of burnt orange with yellow tips and chocolate center. Blooms late summer to early fall. |
| Zone: 4 |
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RUELLIA humilis
(roo-EL-ee-a) (HEW-mih-lis) | RUELHU3 |
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| Common Name: Wild Petunia |
| Description: Small, petunia-like, lavender flowers on this native; long bloom season. Excellent plant. |
| Zone: 5 |
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RUMEX sanguineus subsp. sanguineus
(ROO-meks) (san-GWIN-ee-us) | RUMESA3 |
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| Common Name: Garden Sorrel |
| Description: Distinct red to purple veins color the foliage of this perennial, ornamental vegetable. Reddish-purple seedheads. |
| Zone: 6 |
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RUSCHIA pulvinaris
| RUSCPU3 |
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| Common Name: Creeping Shrubby Ice Plant |
| Description: Vigorous evergreen groundcover with succulent, blue-green leaves with pink flowers in late spring-early summer. Deer and rabbit resistant. Drought tolerant.
NEW FOR 2019
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| Zone: 6 |
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