DELOSPERMA 'PWWG02S' Red Mountain® (del-o-SPERM-a) | DELORM3 |
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| Common Name: Red Flame Ice Plant |
| Description: 2016 Plant Select®. This new hybrid selection of South Africa has large, blazing red flowers from late spring to early summer |
| Zone: 5 |
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DELPHINIUM 'Black Knight' (del-FIN-ee-um) | DELPBK3 |
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| Description: Deep, velvety blue flowers with black bees. |
| Zone: 3 |
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DELPHINIUM 'Blue Bird' (del-FIN-ee-um) | DELPBB3 |
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| Description: Medium blues, white bees. |
| Zone: 3 |
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DELPHINIUM grandiflorum 'Summer Blues' (del-FIN-ee-um) (gran-di-FLOOR-um) | DELPSB3 |
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| Description: Exciting, well-branched dwarf covered with sky blue flowers. Better heat tolerance than other grandiflorums with a long flowering season. Can be grown as an annual. |
| Zone: 4 |
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DELPHINIUM grandiflorum 'Summer Nights' (del-FIN-ee-um) (gran-di-FLOOR-um) | DELPSN3 |
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| Description: Deep blue flowers on this great 'Summer' Delphinium with same outstanding performance as 'Summer Blues'. |
| Zone: 4 |
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DELPHINIUM 'Magic Fountains' (del-FIN-ee-um) | DELPMF3 |
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| Description: Flower spikes 12-15"; mixed colors. |
| Zone: 3 |
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DELPHINIUM Millennium Series 'Dwarf Stars' (del-FIN-ee-um) | DELPMD3 |
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| Description: This delphinium is heat and drought tolerant and a mixture of many colors that don't need staking. Flowers June-September. Excellent cut flower! |
| Zone: 4 |
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DESCHAMPSIA caespitosa (des-KAMP-see-ah) (say-spih-TOE-sah) | GRDECA3 |
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| Common Name: Tufted Hair Grass |
| Description: Showy, dense tufts. |
| Zone: 4 |
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DESCHAMPSIA caespitosa 'Northern Lights' (des-KAMP-see-ah) (say-spih-TOE-sah) | GRDENL3 |
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| Common Name: Hair Grass |
| Description: 1998 Bluebird introduction. Highly variegated leaves have pink blush on new growth and in cool weather. A very striking plant that has enjoyed great popularity in the U.S. and Europe since introduced. Difficult to ship in the heat of summer. Available after 3/1. |
| Zone: 5 |
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DIANTHUS 'Cheyenne' (dy-ANN-thus) | DIANCH3 |
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| Common Name: Carnation |
| Description: Large, fragrant, double, pink, hardy carnation developed at the Cheyenne, WY Experiment Station. Exceptional plants with a long bloom period. |
| Zone: 4 |
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DIANTHUS 'First Love' (dy-ANN-thus) | DIANFL3 |
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| Common Name: First Love Dianthus |
| Description: 2001 Plant Select®. Intensely fragrant flowers that change from pure white to deep rose from April to frost. Clump-forming with attractive mounds of foliage in winter. A real standout in our gardens all summer and fall. |
| Zone: 3 |
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DIANTHUS gratianopolitanus 'Feuerhexe' (dy-ANN-thus) (grah-tee-ah-no-pol-it-TAY-nus) | DIANFE3 |
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| Common Name: Carnation |
| Description: 2006 PPA Plant Of The Year! Masses of brilliant raspberry-red, 1", upward facing flowers with a delicious, spicy clove fragrance covering silvery-blue mats of evergreen foliage in late spring/early summer. Often reblooms in early fall if deadheaded. Wonderful rock garden or border addition! |
| Zone: 4 |
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DIANTHUS gratianopolitanus 'Tiny Rubies' (dy-ANN-thus) (grah-tee-ah-no-pol-it-TAY-nus) | DIANTR3 |
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| Common Name: Carnation |
| Description: Double, rose-pink flowers in spring; short, tufted mounds of blue-green foliage. |
| Zone: 3 |
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DIANTHUS x allwoodii 'Frosty Fire' (dy-ANN-thus) (all-WOOD-ee-eye) | DIANFF3 |
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| Common Name: Carnation |
| Description: Double, red flowers; blue-gray, dwarf foliage. Long flowering period. |
| Zone: 4 |
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DICENTRA eximia (dy-SEN-trah) (eks-IH-mee-a) | DICEEX5 |
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| Common Name: Dwarf Bleeding Heart, Fern-leaf Bleeding Heart |
| Description: Lovely pink flowers; ferny, green foliage. |
| Zone: 3 |
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DICENTRA formosa 'King of Hearts' (dy-SEN-trah) (for-MOE-sah) | DICEKH5 |
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| Common Name: Bleeding Heart |
| Description: Broad, rosy-pink flowers from May-August. Very floriferous. Slightly glaucous, gray-green foliage. Disease free cultivar. |
| Zone: 4 |
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DICENTRA formosa 'Luxuriant' (dy-SEN-trah) (for-MOE-sah) | DICELU5 |
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| Common Name: Bleeding Heart |
| Description: RHS Award of Garden Merit. Choice, everblooming variety with cherry-red flowers; ferny, blue-green foliage. |
| Zone: 2 |
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DICENTRA spectabilis (dy-SEN-trah) (spek-TAB-il-iss) | DICESP8 |
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| Common Name: Old Fashioned Bleeding Heart |
| Description: Favorite, with arching stems of large, pink hearts. Often summer dormant in hot climtates. |
| Zone: 4 |
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DICENTRA spectabilis 'Alba' (dy-SEN-trah) (spek-TAB-il-iss) | DICESA8 |
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| Common Name: Bleeding Heart |
| Description: Lovely, rare, white form; elegant plants. |
| Zone: 4 |
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DICHONDRA 'Silver Falls' (dy-KON-drah) | DICHSF3 |
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| Common Name: Aluminum Vine |
| Description: Beautiful, vigorous, silver, round leafed, trailing plant. Extremely heat and drought tolerant. Incredible in baskets or trailing from containers. |
| Zone: 10 |
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DICTAMNUS albus (dik-TAM-nus) (AL-bus) | DICTAL3 |
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| Common Name: Gas Plant |
| Description: RHS Award of Garden Merit. Erect spikes of unique, white, aromatic flowers in June.
May cause skin irritation, especially in hot weather! Dictamnus is very slow growing; probably taking 18 months to 2 years to fill a 4" pot well. Do not expect to move up into a gallon & have them be consumer ready along with your Dianthus & Echinaceas! Dictamnus growers have to be very patient, but it's worth the wait. |
| Zone: 3 |
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DICTAMNUS albus 'Purpureus' (dik-TAM-nus) (AL-bus) | DICTAP3 |
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| Common Name: Gas Plant |
| Description: RHS Award of Garden Merit. Dark veined, pink flowers. Long-lived perennial may be 'Burning Bush' of Moses.
May cause skin irritation, especially in hot weather! Dictamnus is very slow growing; probably taking 18 months to 2 years to fill a 4" pot well. Do not expect to move up into a gallon & have them be consumer ready along with your Dianthus & Echinaceas! Dictamnus growers have to be very patient, but it's worth the wait. |
| Zone: 3 |
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DIGITALIS grandiflora (dij-ih-TAL-iss) (gran-di-FLOOR-ah) | DIGIGR3 |
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| Common Name: Foxglove |
| Description: RHS Award of Garden Merit. Large, bell-shaped, yellow flowers marked with brown in early summer. Perennial. |
| Zone: 4 |
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DIGITALIS thapsi (SPANISH PEAKS®) (dij-ih-TAL-iss) (THAP-see) | DIGISP3 |
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| Common Name: Foxglove |
| Description: 1999 Plant Select®. Spikes of raspberry-rose flowers in early summer over trim mat of furry foliage. Perennial; thrives in a variety of sites and soils. |
| Zone: 4 |
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DIGITALIS x mertonensis (dij-ih-TAL-iss) (mer-ton-EN-sis) | DIGIME3 |
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| Common Name: Strawberry Foxglove |
| Description: RHS Award of Garden Merit. Very large, raspberry flowers. Tetraploid perennial plants. |
| Zone: 4 |
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DODECATHEON 'Aphrodite' PP# 14,002 (do-de-KATH-ee-on) | DODEAP5 |
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| Common Name: Shooting Star |
| Description: Intense purple-pink flowers on robust plants in May-June. Propagation Prohibited. |
| Zone: 4 |
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DODECATHEON meadia 'Album' (do-de-KATH-ee-on) (MEE-dee-a) | DODEAL5 |
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| Common Name: Shooting Star |
| Description: RHS Award of Garden Merit. Delicate umbels of lovely, white flowers rise from flat rosettes of foliage. Likes rich, moist soil. Usually has flowered and is dormant by May 1st! |
| Zone: 3 |
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DRACOCEPHALUM argunense 'Fuji Blue' (dra-ko-SEF-a-lum) (ar-gun-ENSE) | DRACFB3 |
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| Common Name: Dragonhead |
| Description: Spikes of brilliant blue flowers early June to mid-August. Needle-like, leathery, green foliage forms compact, durable clumps; long-lived perennial. |
| Zone: 4 |
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DRYOPTERIS erythrosora (dry-OP-ter-iss)(er-ith-roe-SOR-ah) | FERNAF4 |
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| Common Name: Autumn Fern |
| Description: RHS Award of Garden Merit. Showy, coppery-pink, new fronds continuously until fall; frost turns it a pleasing bronze. Attractive evergreen through winter if protected from drying winds. Mature leaves make excellent cut greens. |
| Zone: 5 |
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DRYOPTERIS filix-mas undulata 'Robusta' (dry-OP-ter-iss) (fil-liks-MAHS) | FERNRO4 |
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| Common Name: Male Fern |
| Description: Sturdy, evergreen variety. |
| Zone: 5 |
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