PYCNANTHEMUM virginianum
(pik-nan-THE-mum) (ver-jin-ee-AY-num) | PYCNVI3 |
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| Common Name: Virginia Mountain Mint |
| Description: Fragrant, minty foliage; white or pale lavender flowers spotted purple on lower lip in July-September. Eastern U.S. native. |
| Zone: 3 |
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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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ROSMARINUS lavandulaceus
(rose-ma-REEN-us) (lav-AN-dew-lay-see-us) | HBROLA3 |
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| Common Name: Prostrate Rosemary |
| Description: Low growing trailer. |
| Zone: 8 |
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ROSMARINUS officinalis
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROOF3 |
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| Common Name: Rosemary |
| Description: Fragrant, shrubby perennial. A ribbon-tied sprig is traditional for Czech wedding guests. |
| Zone: 7 |
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ROSMARINUS officinalis 'Alba'
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROAL3 |
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| Common Name: Rosemary |
| Description: Attractive, white flowered form; upright plants with fragrant foliage. Outstanding in our alpine house! |
| Zone: 7 |
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ROSMARINUS officinalis 'Arp'
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROAR3 |
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| Common Name: Rosemary |
| Description: Hardier variety. Brighter green foliage. |
| Zone: 7 |
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ROSMARINUS officinalis 'Golden Rain'
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROGR3 |
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| Common Name: Rosemary |
| Description: Gold variegated new growth; upright plant. |
| Zone: 7 |
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ROSMARINUS officinalis 'Irene' PP# 9,124
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROIR3 |
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| Common Name: Rosemary |
| Description: Vigorous, prostrate selection with attractive, neat habit, deep blue-violet flowers that do not fade. Propagation Prohibited. |
| Zone: 5 |
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ROSMARINUS officinalis 'Madeline Hill'
(rose-ma-REEN-us) (oh-fi-shi-NAH-lis) | HBROMH3 |
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| Common Name: Rosemary |
| Description: Hardier variety reported to -15 degrees F. Robust plant with Wedgewood blue flowers. |
| 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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| 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 '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 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 'Cherry Brandy'
(rud-BEK-ee-ah) (HER-tah) | RUDBCB3 |
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| Description: Fleuroselect Quality Mark Award Winner. World's first red-flowered Rudbeckia from seed. Single, cherry-red blooms on robust, bushy plants create a dramatic impact in borders, large containers, or as cut flowers. Short-lived; best treated as an annual. |
| Zone: 5 |
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RUDBECKIA hirta 'Prairie Sun'
(rud-BEK-ee-ah) (HER-tah) | RUDBPS3 |
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| 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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