SESLERIA autumnalis
(sess-LAIR-ee-ah) (ot-um-NAL-iss) | GRSEAU5 |
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| Common Name: Autumn Moor Grass |
| Description: Yellow-green foliage for contrast. Exceptional in mass plantings. |
| Zone: 5 |
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SILENE regia
(si-LEEN) (REE-jee-a) | SILERE3 |
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| Common Name: Showy Catchfly, Royal Catchfly |
| Description: Sensational, late summer display of large, brilliant red-scarlet flowers. |
| Zone: 4 |
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SILENE uniflora 'Druett's Variegated'
(si-LEEN) (yoo-nee-FLOOR-uh) | SILEDV3 |
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| Common Name: Campion, Catchfly |
| Description: Pure white blossoms from summer to fall. Cream-edged, mat-forming foliage is great for containers. |
| Zone: 3 |
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SILPHIUM laciniatum
(SILL-fee-um) (lass-in-ee-AY-tum) | SILPLA3 |
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| Common Name: Compass Plant |
| Description: Slow growing, very long-lived native. Sends up tall flower stalk with up to 100 bright yellow flowers that open over a month long period. Classic prairie plant. |
| Zone: 4 |
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SILPHIUM perfoliatum
(SILL-fee-um) (per-foh-lee-AY-tum) | SILPPE3 |
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| Common Name: Carpenter Plant, Cup Plant |
| Description: RHS Award of Garden Merit. Robust native with square stems; opposite leaves joined at base, forming cups. Large, yellow, daisy-like flowers. |
| Zone: 4 |
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SOLEIROLIA soleirolii
(so-lay-ROL-ee-a) (so-lay-ROL-ee-eye) | SOLESO3 |
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| Common Name: Baby's or Angel's Tears, Mind Your Own Business |
| Description: Tiny, creeping, mat-forming, intricate, delicate, yet easy ground cover for troughs, planters, and topiaries. |
| Zone: 9 |
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SOLIDAGO canadensis 'Golden Baby'
(sol-ih-DAY-go) (kan-a-DEN-sis) | SOLIGB3 |
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| Common Name: Goldenrod |
| Description: Compact, upright native; dense, golden-yellow sprays in fall. |
| Zone: 4 |
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SOLIDAGO 'Crown of Rays'
(sol-ih-DAY-go) | SOLICR3 |
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| Common Name: Goldenrod |
| Description: Large, golden-yellow flowers on stiff, columnar plant. An exceptional selection for the border. |
| Zone: 4 |
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SOLIDAGO rugosa 'Fireworks'
(sol-ih-DAY-go)(roo-GO-sah) | SOLIFW5 |
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| Common Name: Goldenrod |
| Description: 2007 GreatPlant™ Perennial of the Year! Lacy, radiating bloom spikes of sparkling golden-yellow from mid-September past mid-October. Greatly extends garden color and excitement. From North Carolina Botanical Garden. |
| Zone: 4 |
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SOLIDAGO rugosa 'Fireworks'
(sol-ih-DAY-go) (roo-GO-sah) | SOLIFW3 |
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| Common Name: Goldenrod |
| Description: 2007 GreatPlantsTM Perennial of the Year. Lacy, radiating bloom spikes of sparkling golden-yellow from mid September past mid October. Greatly extends garden color and excitement. From North Carolina Botanical Garden. |
| Zone: 4 |
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SOLIDAGO sphacelata 'Golden Fleece'
(sol-ih-DAY-go) (spass-el-AY-tah) | SOLIGF3 |
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| Common Name: Goldenrod |
| Description: Rich textured goldenrod; heavy flowers. |
| Zone: 3 |
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SOLIDAGO 'Wichita Mountains'
(sol-ih-DAY-go) | SOLIWM3 |
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| Common Name: Goldenrod |
| Description: 2005 GreatPlantsTM. Outstanding, long standing, attractive specimen with tall rods of bright gold in late summer. Collected in the Wichitas in Southwestern Oklahoma by Steve Bieberich of Sunshine Nursery. |
| Zone: 4 |
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SOLIDAGO 'Wichita Mountains'
(sol-ih-DAY-go) | SOLIWM5 |
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| Common Name: Goldenrod |
| Description: 2005 GreatPlants™. Outstanding, long standing, attractive specimen with tall rods of bright gold in late summer. |
| Zone: 4 |
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SOLIDASTER luteus
(sol-ih-DAS-ter) (lew-TEE-us) | SOLILU3 |
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| Common Name: |
| Description: Dense heads of yellow daisies from July-September. Excellent cut. A cross between goldenrod and a white aster. |
| Zone: 3 |
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SOLIDASTER luteus
(sol-ih-DAS-ter)(lew-TEE-us) | SOLILU5 |
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| Common Name: |
| Description: Dense heads of yellow daisies from July-September that make excellent cuts. A cross between goldenrod and a white aster. |
| Zone: 3 |
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SORGHASTRUM nutans
(sor-GAS-trum) (NEW-tanz) | GRSONU5 |
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| Common Name: Indian Grass |
| Description: 2004 GreatPlantsTM Grass of the Year! Stalwart, wide leaf, warm season native with golden, plume-like seed heads. |
| Zone: 3 |
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SORGHASTRUM nutans
(sor-GAS-trum) (NEW-tanz) | GRSONU3 |
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| Common Name: Indian Grass |
| Description: 2004 GreatPlantsTM Grass of the Year! Stalwart, wide leaf, warm season native with golden, plume-like seed heads. |
| Zone: 3 |
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SORGHASTRUM nutans 'Indian Steel'
(sor-GAS-trum) (NEW-tanz) | GRSOIS5 |
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| Description: Strong, upright grower with blue-green foliage. |
| Zone: 4 |
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SORGHASTRUM nutans 'Indian Steel'
(sor-GAS-trum) (NEW-tanz) | GRSOIS3 |
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| Description: Strong, upright grower with blue-green foliage. |
| Zone: 4 |
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SPHAERALCEA coccinea
(sfeer-AL-see-uh)(kok-SIN-ee-uh) | SPHACO3 |
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| Common Name: Prairie Mallow, Scarlet Globemallow |
| Description: Low growing, native ground cover for naturalizing. Coral red flowers. Brought back for 2021. |
| Zone: 5 |
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SPODIOPOGON sibiricus
(spoh-dee-oh-POH-gon) (si-BEER-ih-kus) | GRSPSI5 |
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| Common Name: Frost Grass, Siberian Graybeard |
| Description: This grass has a stiff, erect appearance that grows in clumps noted for its interesting foliage and reddish-purple fall color. The plume is an airy panicle with shiny purple spikelets from July-September. |
| Zone: 4 |
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SPOROBOLUS heterolepis
(spor-OB-oh-lus) (het-er-oh-LEP-iss) | GRSPHE3 |
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| Common Name: Prairie Dropseed |
| Description: 2003 GreatPlants™ Grass of the Year! Narrow-leaved, fragrant, native grass. Incredibly attractive in bloom and seed. |
| Zone: 3 |
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SPOROBOLUS wrightii
(spor-OB-oh-lus) (RITE-ee-eye) | GRSPWR5 |
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| Common Name: Giant Sacaton |
| Description: 2006 Plant Select®. Stunning, feathery, branched seed heads; graceful, arching foliage. Great 'see through' plant, vigorous grower; drought resistant after establishment. |
| Zone: 4 |
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STACHYS byzantina 'Helene von Stein'
(STAK-iss) (by-zan-TEEN-a) | STACHE5 |
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| Common Name: Betony, Woundwort |
| Description: Strong, vigorous, excellent stachys. Large, wooly, serrated, silver leaves create contrast. This plant has a good record for holding up in hot, humid weather. |
| Zone: 5 |
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STACHYS byzantina 'Silver Carpet'
(STAK-iss) (by-zan-TEEN-a) | STACSC3 |
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| Common Name: Betony, Woundwort |
| Description: Silvery-gray foliage mats; seldom flowers, so requires less maintenance. |
| Zone: 4 |
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STACHYS monieri 'Hummelo'
(STAK-iss) | STACHU3 |
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| Common Name: Betony |
| Description: Hummelo has glossy, dark green leaves with bright rose-purple flowers. The flowers resemble Salvia; blooms mid-summer.
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| Zone: 4 |
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STACHYS monieri 'Hummelo'
(STAK-iss) | STACHU5 |
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| Common Name: Betony, Woundwort |
| Description: 2019 PPA Plant of the Year! Hummelo has glossy, dark green leaves with bright rose-purple flowers. The flowers resemble Salvia that blooms mid-summer. |
| Zone: 4 |
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STEVIA rebaudiana
(STEV-ee-a) (re-baud-ee-AH-nuh) | HBSTRE3 |
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| Common Name: Sweetleaf |
| Description: Lantana cousin whose edible leaves are many times sweeter than sugar. Tropical and suptropical that grows fast in hot weather. Small, white flowers in tight clusters. Does not tolerate shipping in cold weather! |
| Zone: 9 |
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STOKESIA laevis
(sto-KEE-see-ah) | STOKLA3 |
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| Common Name: Stoke's Aster |
| Description: Lovely, lilac-blue disc flowers. Southeast US native. |
| Zone: 5 |
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STOKESIA laevis
(sto-KEE=see-ah) | STOKLA5 |
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| Common Name: Stoke's Aster |
| Description: Lovely, lilac-blue disc flowers. Southeast US native. |
| Zone: 5 |
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