OENOTHERA pilosella 'Yella Fella'
(e-NOTH-er-a)(pi-lo-SELL-a) | OENOYF5 |
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| Common Name: Evening Primrose, Sundrops |
| Description: Large, brilliant golden flowers open from bright orange buds. Intense green, hairy foliage turns reddish in fall. Blooms all summer. |
| Zone: 4 |
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OPHIOPOGON planiscapus 'Niger'
(oh-fee-oh-POE-gon) (plan-iss-KAP-us) | OPHINI5 |
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| Common Name: Black Mondo Grass |
| Description: RHS Award of Garden Merit. Distinctive, very dark purple foliage with pale lilac-pink flowers July-August. Slow growing edger, ground cover, or contrast plant with Hosta or other paler foliage plants. Best in part shade and moist soil, but will tolerate full sun. |
| Zone: 5 |
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ORIGANUM laevigatum 'Herrenhausen'
(oh-RIG-an-um) (lay-vih-GAY-tum) | ORIGHE3 |
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| Common Name: |
| Description: RHS Award of Garden Merit. Sub-shrub with small, aromatic leaves. Profusion of small, cerise-pink flowers and red-purple bracts. Spectacular in late summer and fall. |
| Zone: 5 |
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ORIGANUM libanoticum
(oh-RIG-an-um) (li-ba-NO-ti-kum) | ORIGLI3 |
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| Common Name: Hopflower Oregano |
| Description: 2004 Plant Select®. Vigorous, trailing herb with hops-like bracts of lavender and chartreuse throughout the summer and fall. Looks best cascading over a raised bed, rock garden, or container. Needs well-drained site. |
| Zone: 4 |
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ORIGANUM majorana
(oh-RIG-an-um) (may-jor-AH-na) | HBORMA3 |
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| Common Name: Sweet Marjoram, Italian Oregano |
| Description: Essential, annual, culinary herb for seasoning sausage, vegetables, meats, and Italian sauces. |
| Zone: 7 |
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ORIGANUM majorana 'Variegata'
(oh-RIG-an-um) (may-jor-AH-na) | HBORMV3 |
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| Common Name: Variegated Sweet Marjoram |
| Description: Foliage variegated with white forms an attractive mat. |
| Zone: 7 |
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ORIGANUM prismaticum
(oh-RIG-an-um) (priz-MAT-ih-kum) | HBORPR3 |
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| Common Name: Greek Oregano |
| Description: Robust flavor. |
| Zone: 7 |
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ORIGANUM rotundifolium 'Kent's Beauty'
(oh-RIG-an-um) (ro-tun-di-FO-lee-um) | ORIGKB3 |
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| Common Name: Kent's Dittany |
| Description: Semi-prostrate, branching stems covered with hops-like pods and lavender florets in summer and fall. Needs well-drained soil. Incredible in containers or growing over a boulder. |
| Zone: 6 |
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ORIGANUM vulgare
(oh-RIG-an-um) (vul-GARE) | HBORVU3 |
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| Common Name: Oregano |
| Description: Necessary herb for Italian cooking. Dry for winter use. |
| Zone: 4 |
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ORIGANUM vulgare 'Aureum'
(oh-RIG-an-um) (vul-GARE) | HBORVA3 |
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| Common Name: Golden Oregano |
| Description: RHS Award of Garden Merit. Rare variety; gold, aromatic foliage. |
| Zone: 4 |
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ORIGANUM vulgare 'Hot & Spicy'
(oh-RIG-an-um) (vul-GARE) | HBORHS3 |
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| Common Name: |
| Description: Dark green leaves are strongly aromatic; tiny, white to purple-pink flowers. Noted for its intense, somewhat spicy flavor; use fresh or dried. |
| Zone: 4 |
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ORIGANUM x 'Amethyst Falls'
(oh-RIG-an-um) | ORIGAF3 |
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| Common Name: |
| Description: An outstanding, long blooming selection by Harlan from seed produced in the Kelaidis' garden several years ago. In addition to amethyst flowers flowing abundantly from ornamental, hops-like cones and attractive, textured, glaucous leaves this drought resistant plant's foliage fills the garden air with its exciting, spicy scent. |
| Zone: 5 |
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ORIGANUM x 'Amethyst Falls'
(oh-RIG-an-um) | ORIGAF5 |
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| Common Name: Oregano |
| Description: An outstanding, long blooming selection by Harlan from seed produced in the Kelaidis' garden. In addition to amethyst flowers flowing abundantly from ornamental hops-like cones and textured, glaucous leaves, this drought resistant plant's foliage has a spicy scent. |
| Zone: 5 |
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OROSTACHYS iwarenge
(or-oh-STAK-ees) (iwa-renge) | OROSIW3 |
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| Common Name: Dunce Caps |
| Description: Choice, low, gray, succulent rosettes. |
| Zone: 5 |
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OROSTACHYS spinosus
(or-oh-STAK-ees) (spine-OH-sus) | OROSSP3 |
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| Common Name: Dunce Caps |
| Description: One of the finest. Similar to miniature Sempervivum and appears to have a white leaf margin. Stunning plant in the trough or rock garden. |
| Zone: 4 |
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OSTEOSPERMUM 'Avalanche' PP# 22,705
(oss-tee-oh-SPERM-um) | OSTEAV3 |
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| Common Name: Avalanche White Sun Daisy |
| Description: 2011 Plant Select®. Dazzling white flowers with a coppery backing from April through summer. Mats of lustrous, nearly succulent, evergreen foliage. Greater disease resistance and heavier bloom than other sun daisies. Propagation Prohibited. |
| Zone: 4 |
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OTHONNA capensis
(o-THON-a) (ka-PEN-sis) | OTHOCA3 |
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| Common Name: Little Pickles |
| Description: Blue-green, cylindrical leaves with stems of bright yellow daisies above foliage. A succulent Senecio selection for the sunny rock garden brought from Drakenberg Mountains of South Africa by Denver Botanic Garden's Panayoti Kelaidis. |
| Zone: 5 |
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PACHYPHYTUM 'Blue Haze'
| PACHBH3 |
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| Common Name: |
| Description: This succulent with blue foliage is a cross between Pachyphytum bracteosum and Pachyphytum glutinicaule. Tiny, yellow or yellow-orange flowers top this succulent. Pachyphytum comes from the Greek name which means thick leaves. |
| Zone: 10 |
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PACHYVERIA glauca 'Little Jewel'
(pak-ee-VER-ee-ah) | PACHLJ3 |
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| Common Name: |
| Description: Tapered leaves of dusky, powdery blue with reddish tints at the tips and some violet tones. Leaves actually look like jewels. |
| Zone: 10 |
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PACHYVERIA 'Jewel Tone'
| PACHJT3 |
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| Common Name: |
| Description: Short-stemmed, mint-green rosettes that will turn rosy-pink at its tips when grown in bright sunlight. Coral-pink, bell-shaped flowers hang from tall stalks in summer. |
| Zone: 10 |
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PAEONIA lactiflora 'Duchesse de Nemours'
(pay-OH-nee-ah) (lak-tih-FLOOR-ah) | PAEODD8 |
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| Common Name: Peony |
| Description: RHS Award of Garden Merit. Early, fragrant, white, double flowers. |
| Zone: 3 |
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PAEONIA lactiflora 'Karl Rosenfield'
(pay-OH-nee-ah) (lak-tih-FLOOR-ah) | PAEOKR8 |
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| Common Name: Peony |
| Description: Deep red, double flowers; medium early. |
| Zone: 3 |
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PAEONIA lactiflora 'Peter Brand'
(pay-OH-nee-ah) (lak-tih-FLOOR-ah) | PAEOPB8 |
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| Common Name: Peony |
| Description: Large, full, deep red, fully double flowers. One of the best red doubles. |
| Zone: 3 |
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Paeonia lactiflora 'Red Sarah Bernhardt'
(pay-OH-nee-ah) | PAEORS8 |
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| Common Name: Peony |
| Description: This late-flowering peony starts out dark pink changing to red and has all the features of Sarah Bernhardt. Long strong stems make it excellent for cutting.
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| Zone: 3 |
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PAEONIA lactiflora 'Sarah Bernhardt'
(pay-OH-nee-ah) (lak-tih-FLOOR-ah) | PAEOSB8 |
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| Common Name: Peony |
| Description: RHS Award of Garden Merit. Fragrant, deep pink, double flowers; late flowering. |
| Zone: 3 |
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PAEONIA 'Red Charm'
(pay-OH-nee-ah) | PAEORC8 |
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| Common Name: Peony |
| Description: Glossy, long-lasting, large, deep red, pom-pom flowers on strong stems in mid to late spring. Great for cut flowers. This hybrid is an American Peony Society Gold Medal Winner. |
| Zone: 2 |
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PAEONIA x 'Flame'
(pay-OH-nee-ah) | PAEOFL8 |
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| Common Name: Peony |
| Description: Hot pink, single flowers with orange tones in late May-June. Strong stems make it an excellent cut. |
| Zone: 3 |
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PANDOREA jasminoides 'Variegata'
(pan-DOOR-ee-a) (yas-min-OY-deez) | PANDJV4 |
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| Common Name: |
| Description: Wonderful, tender, twining, evergreen cousin of Trumpet Creepers featuring incredible, variegated creme and rich green foliage and large, fragrant, light pink flowers with hot pink throat. From northeastern Australia. |
| Zone: 9 |
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PANICUM virgatum 'Cheyenne Sky' PP#23,209
(PAN-ih-kum) (ver-GAY-tum) | GRPACS8 |
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| Common Name: Switch Grass |
| Description: An exciting selection chosen for its tight, vase-shaped form. Blue-green foliage turns wine-red late summer and showy flower spikes of the same color appear in fall. Seed plumes often persist through winter providing visual interest and food for birds. More compact and uniformly red than 'Shenandoah'. Propagation Prohibited. Limited. |
| Zone: 4 |
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PANICUM virgatum 'Dallas Blues' PP# 11,202
(PAN-ih-kum) (ver-GAY-tum) | GRPADB8 |
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| Common Name: Switch Grass |
| Description: 2016 GreatPlants™ Grass of the Year! Steely blue-purple foliage selection with many, very large flower panicles from early September to frost. Robust plants. Outstanding! Propagation Prohibited. |
| Zone: 5 |
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