Betula nigra Northern Tribute® 'Dickinson' (Northern Tribute® River Birch)
This is proving to be the most adaptable river birch to dry and alkaline soil conditions in addition to be completely hardy in zone 3. So, no die back from winter injury and no iron chlorosis or the mortality that can cause. The parent tree is the largest of this species observed in the upper Northern Plains; it has a proven track record of over 40 years. Ivory colored with striking coppery-bronze exfoliations the bark is appealing year round. Resistant to borers as well.
Most often used as a rootstock for popular cultivars. Seedlings can be effectively used to create a hedge or screen and are favored in Europe for this purpose. Hardy to -38°F in Ohio during the extreme winter of '93-'94.
Carpinus betulus 'Columnaris Nana' (Dwarf Columnar European Hornbeam)
Given no pruning, forms a dense, dwarf, upright tree . It is useful as a walkway or border focal point or as an edging feature. A diminutive hedge could be another landscape option, with the larger-than-usual buds adding to its winter interest. Rarely available in the trade still, but very easy to grow and zero maintenance required other than irrigation.
Carpinus betulus 'Fastigiata' (Pyramidal European Hornbeam)
An excellent ornamental because of its clean foliage, generally, upright growth habit, and adaptability. Branches ascend, but its form is not columnar in outline. It has a wide, round base and typically lacks a central leader.
Carpinus betulus 'Frans Fontaine' (Frans Fontaine European Hornbeam)
Similar to 'Fastigiata', but with slower growth habit and denser foliage. Its narrow columnar form grows to 40 ft. at maturity. The crispy serrated green leaves turn to gold in the fall, an attractive contrast to the smooth, gray bark.
Carpinus betulus 'Pinoccheo' (Pinoccheo European Hornbeam)
Much less congested branch structure than seedlings or the varieties 'Fastigiata' & 'Frans Fontaine'. Observant nurseryman Lanny Rawdon of Arborvillage in Holt, MO reports that it's a robust grower back in the Midwest, with a strongly upright form as a young tree. One of the first specimen trees set out by the late Buddy Hubbuch at Bernheim Forest is distinctly pyramidal in winter branch structure. Clonal propagation assures its predictable landscape uniformity, and Lanny tells us it survived -35 F in the harsh winter of 1983. This is a really tough, handsome tree for any landscape in zones 5-8 and for potentially harsh landscape conditions in the Midwest.
Pest-free and widely adapted to conditions from the stream-side to the neighborhood mall. It's surprising the trade has not more widely embraced this American native. Fall color is an appealing mix of soft red, yellow and orange. Squirrels risk falling from the slenderest of branches to eat every possible fat, fertile seed in October.
Carpinus caroliniana WI Source (Hardy American Hornbeam, Musclewood)
A seedling strain selected over many years by Mike Yanny of Johnson's Nursery in Menominee Falls, WI. for improved orange-red autumn color. A small-scale (to 30 ft. x 30 ft.) tree with a dense canopy. Its leaf and bark characteristics resemble a small beech tree with fall color. Easy to transplant. Use as rootstock for Firespire™ to assure grafted plants will survive in zones 3-4.
For over 35 years Michael Yanny, Wisconsin, has been selecting and improving his native Musclewood. He started with a few trees that had some fall color and now he releases, with our help, the Wisconsin Red™ strain which has amazing fall color, so much so in fact, if you didn't know better you would suspect it was a different species. Raging reds, oranges and yellow autumn tones set this strain apart from normal seedlings and even his earlier work. Limited supply this year.
With attractive lacey foliage that is very sweetly scented this makes an attractive, colonizing, small shrub that should be planted where it can be seen closely and easily touched to release its fragrance into the air. It has a long history of medicinal uses but is seen less frequently than deserved outside the North East.
Corylus avellana 'Red Dragon' (Red Dragon European Filbert)
From Shawn Mehlenbacher's work here at OSU comes a prized, blight-resistant, contorted, red-leaf hazelnut. With moderately contorted growth, it has an arching grace. Its purple color is intense in spring and early summer, and still dark later in the year. These are expensive but worth it; they will attract a lot of attention at garden centers.
Uncommon in American gardens, this medium to large tree ought to be used more for its pest-free character, corky bark, and symmetrical cone-shaped outline. Stays remarkably green through the toughest drought. Often used as rootstock for C. avellana 'Contorta' because it has less potential to produce suckers below the graft union as compared to C. avellana.
Stunning autumn color. Its flaming fall foliage rivals that of Sugar Maple. Thrives in rocky, dry areas where other trees languish. Larger leaves than C. coggygria and much taller in stature at maturity.
Fagus sylvatica 'Dawyck Gold' (Dawyck Golden European Beech)
Tightly upright without pruning. Its moderate growth rate makes it a useful landscape plant. Bright golden spring foliage fades to green, followed by pleasing bronze fall color. Selected in Scotland as a seedling cross of the green 'Dawyck' Columnar Beech and the golden variegated variety 'Zlatia'.
Fagus sylvatica 'Dawyck Purple' (Dawyck Purple European Beech)
A favorite purple beech that holds a beautiful narrow, upright form. Selected in Scotland as a chance seedling cross of the green 'Dawyck' Columnar Beech and a purple-leaf form, it has become a mainstay in the landscaping trade for its consistent dark purple foliage and appealing upright habit.
Fagus sylvatica 'Riversii' (Riversii Purple European Beech)
Deep purple, shiny leaves, upright when young, spreading to form a 60 ft. globe at maturity. Long in cultivation: cemeteries in many Eastern US cities were often planted with this variety, or other purple beeches that have grown to enormous impressive specimens. Fast-growing in the nursery, they make great field plants to bump later into a #15-20 container.
Witness to the birth and extinction of countless species over a period of 150 million years, Ginkgo survives to charm us with its unique fan-shaped leaves and butter-yellow fall color. Consider that even after Hiroshima was devastated by nuclear blast, fire and radiation in 1945, at ground zero it was the lone re-generating tree the following spring. Merits wider use: many new grafted male cultivars are becoming very popular. These are un-sexed seedlings, used almost exclusively for grafting.
Among the most popular of the fruitless male selections. Not as strongly upright as the variety 'Fastigiata', Liners require staking early. With age it attains a handsome form and consistent brilliant gold color in autumn. This clone and 'Saratoga' come from the Saratoga Horticultural Foundation.
Ginkgo biloba 'Spring Grove' (Spring Grove Dwarf Ginkgo)
It seems there are several clones going around under this name because there are at least two different dwarf Ginkgo trees at Spring Grove Cemetery in Ohio. We don't know which this is or if it is both; we started with more than one plant. But we do know they are dwarf and very attractive in conical growth habit.
This ancient tree evokes a sentiment of awe when one realizes it has endured change and upheaval essentially in its present form for millions of years. Discovered as a "living fossil" in China in 1941, it prefers a moist, well-drained soil. Dawn Redwood is a fast-growing, pest-free and fine-textured conifer, hardy and adaptable.
With its brightly colored, shiny autumn leaves and wide range of adaptivity, especially well suited to wet sites. This is a great landscape tree. Unlike widely-planted Sweetgum, even seedlings of Blackgum are dependable for fall color. Needs pruning when young. These pot-propagated plants ensure transplant success.
With all the great ornamental attributes of blackgum, including exceptional fall color and ease of care, this selection allows even more flexibility of location because of its columnar habit. Tupelo Tower™ was selected from a Zone 4 seedling population and is a full zone hardier than other available cultivars.
A graceful, slow growing native tree that tolerates shade and grows to 40 ft. tall. Bark peels in vertical strips. Very easy to grow in the nursery and relatively fast to finish. Pleasing yellow fall color.
Pest-free and exceptionally drought tolerant small tree (20 ft.), with excellent red, purple, and orange fall color, even in the Deep South. A logical tree for infertile soils or unirrigated urban sites along streets, in parking medians, or under power lines, where it's tough character will ensure its success.
Quercus bicolor (Missouri source) (Swamp White Oak (Missouri source))
Flaking bark texture, even on young trees. Although its common name indicates that it prefers moist areas, it is drought tolerant. The silver undersides of the leaves lend contrast to the upper leaf surface, prompting the species name "bicolor". Among the easiest of the oaks to transplant, it is also hardy and has few insect or disease problems.
Quercus Forest Knight® Q. robur x Q. alba 'Tabor' (Forest Knight® Hybrid Oak)
A handsome new selection from our friend of many years, Earl Cully. His judgment is well-respected in the industry. Forest Knight is a great street tree for new neighborhoods due to its leafy, high canopy features. It is broad spreading (to 50 feet) but the central leader is strong so it will develop fantastic symmetry over time.
Named to honor Nicholas Garry of the Hudson Bay Company, this is the climax species of the pre-1850s Willamette Valley oak savannah. We see occasional see remnants of these original trees, some of which measure more than 5 ft. through and exceed 300 yrs. old. These are truly heritage trees, having sheltered and fed the Calapooya Indians, who gathered acorns by the ton and processed them to make thick soup and flatbread.
Mildew resistant, shiny green leaves above, silver beneath. A recent introduction of exceptional hybrid vigor - great nursery plant. Dense, uniform pyramidal crown. This is a Q. robur x macrocarpa hybrid.
Native to upper elevations in the Davis Mountains of West Texas, this evergreen oak is widely adapted, forming shrubs where conditions are harsh - or a 40 ft. tree where more favorable. Deep dark green leaves are backed by white. Under-utilized, this tree is adapted to grow throughout much of the mild West.
One of the hardiest evergreen oaks, its natural range is from the Mediterranean to Western Pakistan. The tree becomes huge and creates deep shade with dense pendulous branching and dark foliage. As the tree grows larger, some branch thinning makes for a pleasant, airy canopy on open-growing specimens. Best host for black truffle culture.
Quercus Jordan Street® Q. alba x macrocarpa 'Atwood' (Jordan Street® Hybrid Oak)
With outstanding hybrid vigor, dark green foliage that is highly resistant to powdery mildew and almost perfect branching structure Jordan Street is perfect shade tree. It has shown no sign of damage from wind or ice and is hardy to below -28F and windchill to -86F - wow that is cold.
Quercus Kindred Spirit® Q. robur var. fastigiata x Q. bicolor 'Nadler' (Kindred Spirit® Hybrid Oak)
Chief among its merits is strong mildew resistance, in contrast to columnar English oak, which often gets terribly infested with this leaf disease. Strongly columnar in outline, it's 4-5 times taller than wide in outline, significantly more columnar than the similar selection, Regal Prince®. Grafted onto vigorous Q. bicolor liners with mycorrhizal roots, these have excellent survivability without significant transplant shock. Q. robur var. fastigiata x bicolor.