NEPETA x faassenii 'Walker's Low'
(NEP-eh-tah) (fah-SEEN-ee-eye) | NEPEWL1 |
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| Common Name: Catmint |
| Description: 2007 PPA Plant of the Year! Walker's Low is named for a garden and the name is not related to plant size- sorry for any confusion! Lovely, violet-blue flowers over a long period; attractive, gray-green foliage. Lack of pest or disease problems and low maintenance make it a winner. Deer and rabbit resistant. |
| Zone: 3 |
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NEPETA x faassenii 'Walker's Low'
(NEP-eh-tah)(fah-SEEN-ee-eye) | NEPEWL5 |
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| Common Name: Catmint |
| Description: 2007 PPA Plant of the Year! Lovely, violet-blue flowers over a long period. Attractive, gray-green foliage. Lack of pest or disease problems and low maintenance make it a winner. Deer and rabbit resistant. |
| Zone: 3 |
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NICOTIANA sylvestris
(nih-koe-shee-AY-nah) (sil-VES-tris) | NICOSY3 |
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| Common Name: Only The Lonely |
| Description: RHS Award of Garden Merit. Clusters of fragrant, long, white trumpets above robust foliage. Attractive to hummingbirds and hawk moths; great accent plant. |
| Zone: 8 |
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OCIMUM basilicum
(OH-sih-mum) (bah-SIL-ih-kum) | HBOCBA3 |
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| Common Name: Sweet Basil |
| Description: A widely used cooking herb.
Difficult to successfully ship by FedEx/UPS or truck! Just doesn't tolerate lack of air movement, cold, or heat well. Available 4/1 to 5/15. Annual. |
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OCIMUM basilicum 'Genovese'
(OH-sih-mum) (bah-SIL-ih-kum) | HBOCGE3 |
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| Common Name: Basil |
| Description: Large, thick, crinkled, dark green leaves; strongly scented. Popular fresh market and gourmet basil.
Difficult to successfully ship by FedEx/UPS or truck! Just doesn't tolerate lack of air movement, cold or heat well. |
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OENOTHERA berlandieri 'Siskiyou'
(e-NOTH-er-a) (ber-lan-dee-ER-ee) | OENOSI3 |
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| Common Name: Mexican Evening Primrose |
| Description: Fragrant, 2", pink blooms throughout the summer. Very hardy plant if given good drainage. Smaller and less invasive than Oenothera speciosa, although some taxonomists claim berlandiera = speciosa! |
| Zone: 5 |
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OENOTHERA m. subsp. incana (SILVER BLADE®)
(e-NOTH-er-a) (mak-roe-KAR-pa) | OENOSB3 |
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| Common Name: Evening Primrose, Sundrops |
| Description: 1999 Plant Select®. Southern Great Plains plant introduced by James Locklear, formerly of Nebraska Statewide Arboretum. Silvery-blue leaves complimented by huge, clear yellow flowers from May til frost. Drought tolerant perennial. Best on well-drained sites. |
| Zone: 4 |
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OENOTHERA macrocarpa [missouriensis]
(e-NOTH-er-ah)(mak-roe-KAR-pa) | OENOMA5 |
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| Common Name: Missouri Primrose, Sundrops |
| Description: RHS Award of Garden Merit. Large, deep yellow flowers on sprawling plant with glossy, dark green leaves. |
| Zone: 4 |
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OENOTHERA macrocarpa [missouriensis]
(e-NOTH-er-a) (mak-roe-KAR-pa) | OENOMA3 |
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| Common Name: Missouri Primrose |
| Description: RHS Award of Garden Merit. Large, deep yellow flowers; sprawling plant with glossy, dark green leaves. |
| Zone: 4 |
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OENOTHERA macrocarpa subsp. fremontii
(e-NOTH-er-a) (mak-roe-KAR-pa) | OENOFR3 |
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| Common Name: Evening Primrose, Sundrops |
| Description: Large, light yellow flowers beginning in May; most have glaucous leaves, narrower than species. Drought tolerant plants, native to NE & KS. |
| Zone: 4 |
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OENOTHERA pilosella 'Yella Fella'
(e-NOTH-er-a) (py-LOH-sell-ah) | OENOYF3 |
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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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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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OPLISMENUS hirtellus 'Variegatus'
(op-LIS-men-us) | GROPHV3 |
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| Common Name: |
| Description: RHS Award of Garden Merit. Fine textured, tropical, striped white tinted pink-red grass for combos and lovely skirts for planters and baskets. Branches thickly and trails. |
| Zone: 9 |
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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) | 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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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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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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