Here are the new plants in our nursery for 2013:
Deciduous Trees & Shrubs:
Acer x pseudosieboldianum
Zone 4 testing in zone 3. Many believe this is a Japanese Maple available to the general public for purchase in 2013. We first planted this one in spring of 2010. It came through the winter with no tip die-back over the past two winters. It was completely uprooted in the June 2011 flood and replanted a month later. It does not appear to have suffered at all. Great color year-round holding leaves through most of the winter. It will be several years before we'll be able to get a lot of these. As far as we know as of Jan 15th we will only be receiving 5 of these this first year and I'm sure they'll be sold as soon as this list is posted.
The Pow-wow is a new hybrid of Berberis with outstanding golden leaves and grows to about 4 feet. With Pow-wow you get chartreuse leaves in the summer and a show of bright reddish-purple foliage in autumn. With a graceful habit, having slender, arching, spiny branches this shrub makes an excellent hedge or an outstanding stand alone specimen.
Zone 2. 26' tall and 20' wide. Hardy specimen tree with pale yellow-white orchard-like blooms with centers in spring and course, large heart-shaped foliage turning yellow in fall. Drought tolerant.
Zone 4. Sometimes called Desert Sweet, is a densely branched, aromatic shrub. It grows to 7' x 7' and has a rounded form. Preferring full sun, fernbush will grow well in gravel, sandy loam, loam and clay loam soils. Native to the western U.S. Very drought tolerant once established. Foliage is fragrant, fernlike, scaly and sticky. Evergreen in warm climates, deciduous in cold climates, Fernbush has attractive fall color. It is also a "Plant Select" program plant.
Cornus sericea 'Cardinal'
Zone 3. A new introduction, similar to the native Red Osier Dogwood, developed by the University of Minnesota landscape Arboretum. Consistent bright red winter stems.
Genista Lydia 'Bangle'
A great deer resistant, drought and heat tolerant shrub for your landscape. A floriferous, low mounding selection of Genista that produces waves of electric yellow flowers in spring. Improved branching and texture make this a wonderful plant for containers and for mass plantings. Bangle has an interesting texture and is incredibly showy in the landscapes, especially when in bloom.
Zone 4. We've wanted to try this tree for many years but could not find a grower who would sell us less than 100 of them. We are hoping it will survive in a protected are in our Arboreta. It is a tough adaptable tree in much of the mid-west. Normally with a short trunk and wide spreading branches, occasionally pendulous. Bright green summer leaf, yellow fall color. Very large, inedible fruit resembles a green orange. Its hardwood is prized for bow-making and rot resistant fence posts. We have a limited number of them coming for trial if anyone is interested.
French Pussy Willow
Zone 4. Sometimes called Goat Willow. Silvery-gray wooly catkins appear before leaves in spring, more-so than other willows
Ulmus glabra 'Camperdownii'
Zone 4. A very rare tree. Last spring I posted about the loss of our very rare Ulmus glabra 'Camperdownii'. A rabbit completely girdled the bark off. It did well over 2 winters. I am happy to say that we have found some to replace it and also a few we'll be selling in our Pre-Season Sale. A limited are available so order now.
About 1835 - 1840, the Earl of Camperdown's head forester, David Taylor, discovered a mutant contorted branch growing along the ground in the forest at Camperdown House, in Dundee, Scotland. The earl's gardener produced the first Camperdown Elm by grafting it to the trunk of a Wych Elm Ulmus glabra. Every Camperdown Elm in the world is from a cutting taken from that original mutant cutting and is usually grafted on a Wych elm trunk.
The following trees are 2013 "trial" trees donated by some of our growers:
Quercus robor, 'Crimson Spire'
Shape: Columnar, tightly fastigiated. Foliage: Dark green to bluish-green. Fall Color: Rusty red. This columnar selection originated as a hybrid of Q. robur and Q. alba. White oak parentage provides dark green, mildew resistant foliage and reddish fall color. Fastigiate growth habit is inherited from the English oak side.
Fort Mcnair Chestnut
Aesculus x carnea, 'Fort Mcnair' Chestnut
Beautiful, round-headed tree perfectly suited for use in smaller yards. Long, dense clusters of single, pink flowers with yellow throats are very attractive and favored by hummingbirds. Foliage is disease resistant.
Commonly known as the northern catalpa, hardy catalpa, western catalpa, cigar tree, and catawba-tree, is a species of Catalpa native to the midwestern United States.
This is a large deciduous shrub or small tree, native to eastern North America from Southern Ontario, Canada south to northern Florida.
Fruit Trees & Shrubs:
Zone 4. 15' to 20' if left unpruned. SDSU introduction in 1973. Ripe mid-September. Juicy sweet, medium to small bright yellow fruit. Great dessert pear for northern Great Plains. Fire blight resistant. Parker is a good pollinator. Pollen-sterile, cannot be used to pollinate another pear.
Zone 4. Ripe in August. 1934 University of MN introduction. Large yellow-bronze fruit. Fine grained tender and juicy. Good pollinator for Luscious.
Zone 4. Ripe mid-September. Fruit tender and juicy. A good pollinator for most other pears.
Pioneer Pear #3
Developed in Brooks Alberta, Canada in 1936. Very winter hardy in Zone 3 & 4. Medium sized fruit ripens in mid-September with a dull red blush over a green-yellow background.
Zone 3. Very winter hardy released as a cross between Aspa x Siberian pear from the University of Saskatchewan in 1960. Fruit considered large for hardy pears, blushing red over a greenish yellow tender skin. Cream colored flesh is juicy, aromatic, ripening in mid-September. Requires some thinning and must be harvested when filled out yet firm and mellowed for 7 to 10 days.
Zone 3. Ripe late September. 1936 MN introduction. Unique small apple with very sweet intense taste. Crisp but firm texture and juicy. Extremely cold hardy. Parent to 'Keepsake' and 'Sweet 16', grandparent to 'Honeycrisp.'
Zone 3. Ripe late July, early August. One of the earliest ripening apples. Imported from Europe in 1880. Old-fashioned apple with sweet, tart flavors and crisp juicy texture. Primarily used for cooking, sauces and cider. Green with broad red stripes.
Zone 3. Imported from Canada for the first time. A medium straw-yellow apple which is good for fresh eating and excellent for cooking. This early season apple, small apple may store well when picked under-ripe. Heavy producer and drought tolerant.
Prairie Magic Apple
Zone 3. Ripe September. (Goodland x 'Mantet') from Manitoba, Canada. Superior in cold hardiness. Flesh is white, crisp and sweeter than Goodland.
September Ruby Apple
Zone 3. Imported from Canada for the first time. A large, sweet, bright red apple excellent for fresh eating and juicing with good storage qualities.
Zone 3. Ripe Late Sept, early Oct. Considered one of the hardier apples from North Dakota. Uneven shape with yellow to green skin with pink blush. Flesh is white firm and sweet. Eating or cooking. Somewhat fire blight resistant. A joint release from North Dakota University and the Wodarz family.
A seedling of the Manitoba wild plum (Prunus nigra) selected by Dr. Hansen from a lot of seed from Canada in 1908. It is upright, very winter hardy, productive and a powerful pollinator. It bears reliable crops of thin red skinned plums with yellow, juicy tender flesh. Ripens in early September with beautiful egg-shaped fruit. Eat fresh or for canning.
Prairie Red Plum
Zone 3. A hybrid of the native Prunus Americana. Winter hardy plum. Leaves are alternate and simple with sharply serrate margins and prominent veins. Branches are smooth when young but become rigid and spiny as they mature. White flowers with five petals bloom in May. Fruit that forms in late summer is red or reddish yellow in color. The fruit size is 1.5" in diameter. Prairie Red Plum can be included in farmstead and field windbreaks as well as wildlife and recreational plantings. The plum furnishes both good habitat and food for wildlife. It produces a sweet edible fruit which can be made into jelly.
South Dakota Plum
Very winter hardy in our region. Released in 1949 jointly with South Dakota University and the University of Minnesota. Genetics make it a valued pollinator for many of the Japanese x American hybrids. Skin is brightly splashed red over a pale yellow background, covering a firm, meaty, sweet flesh.
Great northern climate Plum. A Japanese x American plum cross introduced by N.E. Hansen in South Dakota in 1918. Fruit is medium sized dark red skin with bluish cast. The yellow flesh is firm, sweet and juicy. This heirloom plum is clingstone, ripens in August and produces a large crop. Rated excellent fresh eating or jelly and sauces. Somewhat resistant to insect and disease.
Dwarf Balsam Fir
Abies balsa 'Piccolo'
Zone 3. Tiny uniform dark green needles radiate around the many short branches. Dense very dwarf globe is great in rock gardens, containers and small landscapes. Introduced by E. Carstens Nursery in Varel, Germany.
Larix decidua 'Horstmann's Recurva'
Zone 2. An unusual deciduous conifer with seriously curly "hair." The small tree develops wispy branches that twist and curl to fantastic effect, especially noticeable in winter after needles drop. In late winter rosy buds swell along the gray curlicues. Bright green needles erupt in spring, soften in summer and fire up to golden yellow in fall. Likes full sun and moist soil.
Larix decidua 'Prag'
Zone 2. Delicate blue-green needles and short, slender branches give this short shrub-like European Larch a soft airy texture. Newer branches sweep gently upward and then spill down as they mature, giving 'Prag' a low, mounding form.
Larix decidua 'Varied Directions'
Zone 2. The vigorous, spreading habit of this deciduous conifer produces robust twigs that propel the branches up and out, in - that's right - varied directions. Golden tan branches, covered with thick twigs, eventually arch down and cover the ground. We have successfully grown this for many years and decided it was time to offer it for sale in our nursery.
Picea engelmannii 'Jasper'
Zone 3. Softer in color and in needle texture than dwarf Picea pungens cultivars, this compact, globe spruce traces its root to a species native to the Rocky Mountains. It is rarely seen in the trade, the muted blue-green conifer thrives in cool, mountain conditions, so its subtle, rugged beauty makes a perfect addition to the alpine garden.
Picea omorika , Spruce, Serbian
Zone 4. The most graceful of all spruces, the Serbian Spruce offers thin arching branches with a slender straight trunk. The needles are light-green to blue-green with purple to cinnamon colored one and a half inch cones. Prefers a deep, moist, and well-drained soil. Plant in partial shade to full sun. Grows 50'-60' with a 25' spread.
Pinus cembra 'Chalet'
Zone 3. A beautiful, narrowly conical form of Swiss Stone Pine. 'Chalet' grows slowly into a dense, compact tree that is perfect for smaller landscapes. Clusters of soft-to-the-touch, blue-green needles with white undersides add a fluffy elegance to this extremely hardy choice and colorful cones add color.
Pinus edulis, 'Pinyon Pine'
Rated Zone 4/5 we have been growing these for many years in our arboreta with no problem. I know of several others successfully growing on the cold dry east slope of the Continental Divide in our area. We have some 18" to 24" and 4' to 6' in size available.
The Bosnian Pine
Despite being Rated Zone 4/5 we are getting these from a solid Zone 4 area of Idaho for 'trial'. It is a species of pine native to mountainous areas of the Balkans and southern Italy. It can be found in the mountains of Bosnia, southwestern Bulgaria, Albania, the Republic of Macedonia, Serbia, northern Greece (south to Mount Olympus), and locally in southern Italy (it is the symbol of the Pollino National Park), growing at 900-2,500 m altitude. It often reaches the alpine tree line in this area. It is an evergreen tree is up to 25-35 m height, and 2 m trunk diameter.
Pinus strobus 'Louie'
Zone 3. Fairly new in the trade, this tree has long thin, vibrant-yellow needles that stay brightly colored year-round. Interior foliage that is shaded stays fresh-green, so the yellow really stands out. Large, open and upright, the symmetrical pyramid, best placed in full sun, seems to reflect the rays of the sun back into the garden. Introduce by Kate Brook Nursery in Vermont.
Pinus mugo 'La Cabana'
Zone 2. A super hardy pine will grow into a sturdy broad pyramidal form. Thick green needles and fat resinous buds add to the visual interest. 'La Cabana' will be a stout foundation tree for the garden, a tremendous low wind-break, or a featured specimen tree depending on culture. A great choice for pruning into a Hindu Pan form for the harshest of climate zones.
Pinus nigra 'Arnold's Sentinel'
Zone 4. Dark-green needles, a dense habit, and strong, upright branching combine to make the columnar form of Austrian Pine a superior landscape plant. Introduce by the Arnold Arboretum, where the original plant was 25' tall and 7' wide after 25 years, it makes an impressive vertical accent, privacy screen or tall, narrow windbreak.
Pinus strobus 'Angel Falls'
Zone 3. This Pinus strobus 'Pendula', a Weeping White Pine, was started by Iseli Nursery by seed in 1981. A slow growing tree has very long, very narrow light green needles and strong weeping habit. Named after the world's tallest waterfall after 20 years of evaluation, the unique tree offers elegance and style.
Pinus strobus Contorta
Zone 3. After seeing this tree successfully growing for many years in the dry windy city of Great Falls, Montana, I simply had to have one. A large open, pyramidal tree, this unusual cultivar displays distinctly twisted blue-green needles and slightly contorted, upright branches. Its soft foliage, attractive color and robust habit make it a bold addition to large gardens. Known since 1932, from Seneca Park, New York.
Pinus strobus Fastigiata
Zone 3. After growing this for several years we decide to off it in our Nursery. Long slender, blue-green needles give this fast growing, upright tree a delicate look. Branches aim skyward, so the tree stays narrow and makes a valuable contribution to tight spots that need a big presence with a small footprint.
Pseudotsuga menziesii 'Blue'
If you think the Colorado Blue Spruce is the only blue tree to have, think again. When people see this tree they say, "Wow, that's a nice Colorado Blue Spruce." When I tell them it's not even a spruce they find it hard to believe that it's actually a Douglas Fir. If planted in front of a stand of regular Doug Fir, or other greenery the clear blue foliage draws they eye and create a sense of distance. Plant it in an area where it will have plenty of room. Not in one's lifetime but it will grow to well over 100' tall.