 |
|
Delosperma (Ice Plant)
Thanks to the great work of Panayoti Kelaidis of the Denver Botanic Garden, we have an ever-increasing selection of ice plants from the mountains of South Africa. For colorful groundcover in full sun, these are hard to beat.
|
Delosperma 'Beaufort West' (Beaufort West Ice Plant)
Sun Zone: 6-7, at least 1" tall Origin: S. Africa
Open House/Web-Only!
For the well-drained rock garden, Delosperma 'Beaufort West' is a real cutie. The slow-spreading, tiny, 1" tall cushion resembles a collection of small, green, rubbery marbles. In April in NC, the plants are topped with tiny, light pink flowers that continue until temperatures settle above 90 degrees F for the summer. D. 'Beaufort West' doesn't appreciate summer rains and high humidity, but in our gravel scree, it does manage to come back year after year. At the Denver Botanic Garden, it continues to flower all summer. D. 'Beaufort West' is an unidentified species that was collected from high alpine elevations near the town of Beaufort West in the Nieuwveld Mountains (South African Karroo). Pot size: 24 fl. oz (709.77 ml) #05873
|
Delosperma cooperi (Hardy Ice Plant)
SunZone: 5-9 3" tall Origin: S. Africa
Open House/Web-Only!
The succulent, needle-like leaves and fluorescent purple flowers make this semi-evergreen groundcover a sight to behold. Hot, sunny conditions keep the flowers coming most of the summer. This is a great groundcover for the beach, since it takes the salt as well as any margarita. A single plant can spread to 2' wide in one season. Although quite hardy, it cannot stand excessive winter moisture, either in the soil or applied from above. Pot size: 24 fl. oz (709.77 ml) #00397
|
Delosperma 'Kelaidis' PP 13,876 (Mesa Verde Ice Plant)
SunZone: 4-8a 2" tall Origin: S. Africa
This marvelous ice plant appeared in 1998 as a seedling or mutation in a patch of dwarf alpine collections of Delosperma cooperi (probably crossed with D. nubigenum) at the Denver Botanic Gardens. The succulent, jellybean-like leaves are topped with stunning salmon-pink flowers from spring to fall. D. 'Kelaidis' is perfect for the rock garden where a low groundcover for a hot, dry site is needed. Our plants formed a stunning 3' wide patch in 3 years. Well-drained soils are very important for good performance. Pot size: 24 fl. oz (709.77 ml) #04951
|
|
Dentaria
|
Dentaria diphylla 'American Sweetheart' (Toothwort)
Light Shade to ShadeZone: 4-8 6" tall Origin: USA
Open House/Web-Only!
(syn: Cardamine diphylla) This cool crucifer is native from Maine south to South Carolina. The winter-green foliage is dark-olive drab, highlighted by silver veins and a dark purple back...certainly the most colorful clone that we have grown. The new growth emerges in fall and looks good until it goes dormant in June, allowing summer bulbs and perennials to take center stage. Toothwort makes a superb winter-growing perennial groundcover (2' wide in 4 years) that is tolerant of both sandy and clay soils, although a moist woodland soil is preferable. The root of this little plant is used to treat hysterical nervousness, late periods, and of course, flatulent colic...a true Renaissance plant. Pot size: 24 fl. oz (709.77 ml) #06458
|
|
Deparia
|
Deparia conilii (Lady in Bed Fern)
Light ShadeZone: 6-8, at least 10" tall Origin: Japan
Open House/Web-Only!
(aka: Lunathyrium pseudoconilii) Thanks to Dr. John Mickel for sharing this Japanese native he prizes in his New York garden. D. conilii creates a deciduous groundcover fern that can form a 3' wide patch of 10" tall fronds in 5 years. It reminds us of a smaller version of one of our favorites, Athyrium japonicum. Pot size: 24 fl. oz (709.77 ml) #06227
|
Deparia pycnosora (Tapering Glade Fern)
Light ShadeZone: 4-8 36" tall Origin: China, Japan, Korea
Open House/Web-Only!
(syn: Athyrium pycnosorum) This Asian native to moist rocky cliffs makes a superb deciduous groundcover fern for the woodland garden. Resembling a giant Thelypteris noveboracensis (New York fern) in habit, the 3' tall pubescent (hairy) fronds form texturally dense patches. Expect a 10-year-old clump to reach 3' in width. Pot size: 24 fl. oz (709.77 ml) #05771
|
|
Dianthus (Hardy Pink)
Dianthus are prized around the world for their mostly evergreen leaves that are often chalky-blue. They are most loved for their fragrant flowers that perfume the garden in spring. For us, growing dianthus in our heat and humidity has always been a challenge, even in well-drained soils. We are always excited when we find a dianthus that performs as well for us as it does in cooler climates. Our selection is a result of extensive trials here at PDN...enjoy!
|
Dianthus barbatus 'Heart Attack' (Perennial Sweet William)
SunZone: 4-8, at least 12" tall Origin: S. Europe
This PDN introduction came to us around 1990 from former garden curator James Stevenson. Unlike most biennial sweet williams, our original clump is now over 15 years old. With so many folks asking about it, we finally got busy propagating and officially introduced it in 2001. Dianthus 'Heart Attack' starts flowering in early spring and continues for months with brilliant red-black, carnation-like flowers atop glossy, dark green, strap-like foliage. Unlike other biennial D. barbatus that we have grown, this one keeps returning and getting better each year. Pot size: 24 fl. oz (709.77 ml) #04368
|
Dianthus 'Feuerhexe' (Firewitch Hardy Pink)
SunZone: 3-9 8" tall Origin: Hybrid
Open House/Web-Only!
(syn: D. 'Firewitch') Not only is this German hybrid (Kayser & Seibert Nursery 1957) one of the bluest-foliaged dianthus, it is also one of the most heat-tolerant and certainly the longest-flowering. I was amazed to find this being sold and used regularly in northern and central Florida. The low-growing mat of narrow, silver-blue foliage is topped in early spring by bright magenta single flowers. For us, D. 'Feuerhexe' flowers sporadically all summer and heavily from October into December. Even after flowering, the intensely colored foliage makes a great color-foil in the garden. For best results, plant dianthus in bright light with well-drained soils. It was selected as the 2006 Perennial Plant of the Year by the PPA. Pot size: 24 fl. oz (709.77 ml) #02786
|
Dianthus 'First Love' (First Love Hardy Pink)
SunZone: 3-9 15" tall Origin: Hybrid
Open House/Web-Only!
If you love pinks and you haven't grown Dianthus 'First Love', what are you waiting for? This amazing plant from Takii Seed Co. is hardy within a barbed wire strand of the North Pole, has fragrant flowers from spring to frost, and is incredibly easy to grow in a wide range of conditions. The 15" tall spikes of flowers emerge white and then change to light pink and then dark pink, which means you will have all three colors at the same time...like when I wash my clothes when my wife is out of town. I forgot to mention the foliage looks great in the winter...assuming you're not under snow. Pot size: 24 fl. oz (709.77 ml) #06460
SOLD OUT
|
Dianthus 'Greystone' (Greystone Hardy Pink)
SunZone: 3-9 9" tall Origin: Hybrid
Open House/Web-Only!
We are pleased to offer a great white-flowered counterpart to the well-known D. 'Bath's Pink' from the garden of NC plantsman Norman Beal. We have trialed this for several years and are convinced that it performs as well as its parent. The steel-grey foliage makes a tight mound to 4' wide. In early spring, the clumps are topped with very fragrant heavily-fringed single white flowers. If the temperatures are very cool, then the flowers may carry the slightest tint of pink. We had been waiting for the white counterpart to D. 'Bath's Pink'...we think this is it. Pot size: 24 fl. oz (709.77 ml) #03795
|
Dianthus plumarius 'Birmingham' (Double White Garden Pink)
SunZone: 4-8 12" tall Origin: Hybrid
Open House/Web-Only!
We were given this plant many years ago by Linda Askey, longtime garden editor for Southern Living Magazine, who got it from the late Catherine Sims of the Southern Garden History Society. While this may be an old passalong cultivar like D. 'Mrs. Sinkins', we haven't finished the paternity tests, hence the new moniker. D. 'Birmingham' makes a 2' wide patch of steely blue foliage, topped in late April and early May with masses of 1' tall stalks of double white fragrant carnations. This heat and humidity loving selection is always the talk of our spring open house, so we felt it was time to share...enjoy. Pot size: 24 fl. oz (709.77 ml) #02638
|
Dianthus 'Wicked Witch' PP 19,824 (Wicked Witch Hardy Pink)
SunZone: 3-9 8" tall Origin: Hybrid alternate image
(aka: originally introduced as D. 'Red Devil') This new PDN introduction was discovered here as a flower mutation on our patch of Dianthus 'Feuerhexe' (Firewitch). Our trials have shown it to be identical to the PPA Plant of the Year, D. 'Feuerhexe', except in flower color, which is a lovely cherry red instead of the typical pink. The tight mats of powder blue foliage are topped in late April with 8" tall spikes of clove-like fragrant cherry red (RHS 66A) flowers that nearly obscure the foliage. As with the parent, we see sporadic rebloom through summer and into fall. Pot size: 24 fl. oz (709.77 ml) #05426
|
Dianthus x allwoodii 'Frosty Fire' (Frosty Fire Dwarf Carnation)
SunZone: 4-8 6" tall Origin: Hybrid
Open House/Web-Only!
We have been quite impressed with the performance of this Dianthus x allwoodii (D. plumarius x caryophyllus) in our summer tolerance trials, which usually make short work of exterminating most dianthus. D. 'Frosty Fire' makes a tight 15" wide mound of very silvery blue foliage, topped in spring with 6" tall, bright cherry red, fragrant flowers. If the plants are deadheaded, we have even seen some summer and fall reblooming. D. 'Frosty Fire' is totally unfazed by our brutal heat and humidity...one of the best rock garden dianthus that we have ever grown! Pot size: 24 fl. oz (709.77 ml) #07305
|
| <Dahlia - Dasylirion] | [Dicentra - Dracunculus> |
|
