POLEMONIUM caeruleum 'Blue Pearl'
(pole-MONE-ee-um) (sir-EW-lee-um) | POLEBP3 |
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| Common Name: Jacob's Ladder, Greek Valerian |
| Description: Bright blue flowers. Kieft Seed variety from Holland. |
| Zone: 3 |
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POLEMONIUM reptans
(pole-MONE-ee-um) (REP-tanz) | POLERE3 |
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| Common Name: Jacob's Ladder, Greek Valerian |
| Description: China-blue bells; native. |
| Zone: 3 |
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POLEMONIUM yezoense 'Purple Rain Strain'
(pole-MONE-ee-um) (yez-oh-ENSE) | POLEPR3 |
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| Common Name: Jacob's Ladder, Greek Valerian |
| Description: Large, violet flowers on upright stems; foliage during winter through early summer is reddish-purple, mostly with dark stems. In shady site or in summer, leaves are green. Reblooms after deadheading. |
| Zone: 4 |
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POLEMONIUM yezoense 'Purple Rain Strain'
(pole-MONE-ee-um)(yez-oh-ENSE) | POLEPR5 |
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| Common Name: Jacob's Ladder, Greek Valerian |
| Description: Large, violet flowers on upright stems. Foliage during winter through early summer is reddish-purple, mostly with dark stems. In shady site or in summer, leaves are green. Reblooms after deadheading. |
| Zone: 4 |
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PORTULACARIA afra decumbent
(por-tew-LAH-kar-ee-a) (AF-ra) | PORTAF3 |
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| Common Name: |
| Description: Low, mounding form of miniature jade. Excellent in containers and the landscape. |
| Zone: 10 |
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PORTULACARIA afra 'Red Stem'
(por-tew-LAH-kar-ee-a) (AF-ra) | PORTRS4 |
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| Common Name: |
| Description: Attractive, dark red stems on miniature jade plant. Excellent as indoor bonsai. |
| Zone: 10 |
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PORTULACARIA afra 'Variegata'
(por-tew-LAH-kar-ee-a) (AF-ra) | PORTAV3 |
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| Common Name: Variegated Elephant Bush, Miniature Jade |
| Description: Almost foolproof and beautiful, 'to scale', indoor bonsai. Easily trained, succulent shrub can be kept happy for years in a sunny window. |
| Zone: 10 |
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POTENTILLA nepalensis 'Ron McBeath'
(poe-ten-TIL-lah) | POTERM5 |
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| Common Name: Cinquefoil, Five Finger |
| Description: Bright carmine-red flowers over long season on clean, neat, disease-free foliage. Big improvement over 'Miss Willmott'. |
| Zone: 5 |
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POTENTILLA nepalensis 'Ron McBeath'
(poe-ten-TIL-lah) (nap-ahl-EN-sis) | POTERM3 |
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| Common Name: Cinquefoil, Five Finger |
| Description: Bright carmine-red flowers over long season on clean, neat, disease-free foliage. Big improvement over 'Miss Willmott'. |
| Zone: 5 |
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POTENTILLA neumanniana
(poe-ten-TIL-lah) (NEW-man-ee-ah-na) | POTENE3 |
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| Common Name: Cinquefoil, Five Finger |
| Description: Mat-forming ground cover with bright yellow flowers. |
| Zone: 4 |
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PRIMULA denticulata Mix
(PRIM-yew-la)(den-tik-yew-LAH-ta) | PRIMDM5 |
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| Common Name: Drumstick Primrose |
| Description: RHS Award of Garden Merit. Dense cluster of flowers in red-purple to white held above a whorl of textured leaves. |
| Zone: 4 |
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PRIMULA denticulata Mix
(PRIM-yew-la) (den-tik-yew-LAH-ta) | PRIMDM3 |
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| Common Name: Drumstick Primrose |
| Description: RHS Award of Garden Merit. Dense cluster of flowers in red-purple to white held above a whorl of textured leaves. |
| Zone: 4 |
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PRIMULA japonica Mix
(PRIM-yew-la) (ja-PON-ih-ka) | PRIMJM3 |
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| Common Name: Primrose |
| Description: Lovely red tones of Candelabra-type flowers. |
| Zone: 5 |
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PRIMULA x bulleesiana
(PRIM-yew-la) | PRIMBU3 |
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| Common Name: Primrose |
| Description: A Candelabra with a bright color range of blossoms from yellow to red to violet. |
| Zone: 5 |
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PRIMULA x pubescens (Auricula Mix)
(PRIM-yew-la) (ow-RIK-yew-la) | PRIMAU3 |
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| Common Name: Primrose |
| Description: RHS Award of Garden Merit. Favorite, early spring bloomer. |
| Zone: 2 |
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PSEUDERANTHEMUM carruthersii var. atropurpureum
(soo-der-RANTH-ee-mum) (kar-RUH-ther-see-eye) | PSEUAT4 |
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| Common Name: |
| Description: Large, glossy, deep purple leaves (color of ripe eggplant) on upright stems. Spectacular, rare Pseuderanthemum formerly seen in conservatories, now becoming popular for that 'tropical look' in the landscape and in containers. |
| Zone: 10 |
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PSEUDOGYNOXYS chenopodioides
(soo-doe-jin-OKS-iss) (ken-oh-poh-dee-OY-deez) | PSEUCH3 |
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| Common Name: Mexican Flame Vine, Orange Glow Flame |
| Description: An absolute knockout; bushy, evergreen, twining climber that produces smashing orange daisies with a light scent which is irresistible to butterflies. Not happy at temps below 45 degrees F. |
| Zone: 10 |
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PULSATILLA patens
(pull-sah-TIL-lah) (PA-tenz) | PULSPA3 |
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| Common Name: Pasque Flower |
| Description: Delicate lavender, cup-shaped flowers early spring. South Dakota's state flower. Available after 3/1. |
| Zone: 3 |
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PULSATILLA vulgaris
(pull-sah-TIL-lah) (vul-GARE-iss) | PULSVU3 |
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| Common Name: Pasque Flower |
| Description: RHS Award of Garden Merit. Violet-purple flowers in early spring. |
| Zone: 5 |
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PULSATILLA vulgaris
(pul-sah-TIL-lah)(vul-GARE-iss) | PULSVU5 |
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| Common Name: Pasque Flower |
| Description: RHS Award of Garden Merit. Violet-purple flowers in early spring. |
| Zone: 5 |
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PULSATILLA vulgaris 'Papageno'
(pull-sah-TIL-lah) (vul-GARE-iss) | PULSPG3 |
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| Common Name: Pasque Flower |
| Description: Fringed, semi-double flowers of pure white with cream tones and bright pink to dark reds and light blue to violet colors. |
| Zone: 5 |
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PULSATILLA vulgaris 'Papageno'
(pull-sah-TIL-lah) | PULSPG5 |
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| Common Name: Pasque Flower |
| Description: Fringed, semi-double flowers of pure white with cream tones and bright pink to dark red, and light blue to violet colors. |
| Zone: 5 |
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PULSATILLA vulgaris 'Rubra'
(pull-sah-TIL-lah) (vul-GARE-iss) | PULSVR3 |
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| Common Name: Pasque Flower |
| Description: Dark red-violet selection. |
| Zone: 5 |
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PULSATILLA vulgaris 'Rubra'
(pull-sah-TIL-lah) | PULSVR5 |
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| Common Name: Pasque Flower |
| Description: Dark red-violet selection. |
| Zone: 5 |
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PYCNANTHEMUM muticum
(pik-nan-THE-mum) (mew-TEE-kum) | PYCNMU3 |
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| Common Name: Short-toothed Mountain Mint |
| Description: Very fragrant, purple to lavender flowers in tufts arising from leaf axils. Attractive, silvery foliage. |
| Zone: 3 |
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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) | RATIPI5 |
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| Common Name: Gray-headed Coneflower |
| Description: Bright yellow rays droop down around stalk. |
| 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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