Archive for the ‘Propagation(grafting)’ Category

Downtown Street Trees With A Narrow Vertical Form

On the subject of land, Mark Twain wrote: “they’re not making any more of it”. This is particularly true in downtown urban areas where land to grow trees is usually very limited. Here are five tall trees that possess a striking vertical accent. Their upright branch habit does not take up much horizontal space. Trees […]

Uniquely Different Red Dragon™ Contorted Filbert

Uniquely Different ‘Red Dragon’ Contorted Filbert European filbert or hazelnut (Corylus avellana) is native to Europe, western Asia and northern Africa where it is often found growing in thickets and hedgerows. Red Dragon™ filbert is an outstanding red leaf selection of contorted filbert (C. avellana Red Dragon™). This unique landscape shrub grows 6 – 8 […]

New ‘Chastity’ Ornamental Pear

Before you totally give up on ornamental pear trees (Pyrus calleryana) as invasive, a decision that I would never argue against, take a look at the new Chastity pear. NEW! NEW! NEW! on the market is Chastity pear, a triploid hybrid that is both very ornamental and highly infertile (USDA hardiness zones 5-9). Chastity™ Pear was specifically […]

Lots Of Choices In European Hornbeams

European hornbeam (Carpinus betulus),, aka ironwood and musclewood, is an underused tree in the U.S. It makes an excellent urban street and park tree. It develops a full, dense canopy and has very few maintenance requirements (USDA hardiness 4-7).  European hornbeams are planted across Europe for their formal upright form as street trees, privacy screens, […]

Black Gum (Tupelo) Tree

Black gum (Nyssa sylvatica) or tupelo tree is a native to Eastern North America (USDA hardiness zones 3-9). It is native from the New England states southward into Florida and west to Eastern Texas.  Seedlings of this wonderful woodland and landscape tree start off slowly, but will mature to heights of 50 to 60 feet […]

Ultra Dwarf Korean Fir

Korean fir (Abies koreana) is slow-growing compact fir species with a mature height between 15 to 30 feet tall and 6 to 15 feet wide. Its tiny needles are ½- to 1- inch long, green on top and two white stripes on the underside. It bears 2-3 inches long erect purple cones almost annually that […]

Katsura Trees For Urban Plantings

Hooray! American gardeners are finally becoming savvy about Katsura tree (Cercidiphyllum  japonicum) as one of the finest landscape trees. This medium to tall growing tree (height depending on cultivar) possesses four-season appeal. Numerous varieties are now available. Small growing cultivars will be featured here. Katsura tree is indigenous to Japan and China where some may […]

Planting Small Trees Under Power Lines

Look Up before you plant. From city streets to country roadside are a myriad of power (utility) lines, e.g. electric, telephone, and cable TV wires. Utility companies have a “right of away” clearance to operate their lines. In most municipalities, mature trees growing into their lines can be cut down or all offending branches removed. Large trees often end […]

Select List Of The Better Kousa Dogwood Varieties

There are over 100 named varieties (cultivars)  of kousa (Chinese) dogwoods (Cornus kousa) in nursery trade (USDA hardiness zone 5-8). Most cultivars grow 20-30 feet high with some exceptions. Kousa dogwood blooms 2-3 weeks after U.S. native flowering dogwood (C. florida). Most grow shrub-like and tree forms require extensive training at the nursery. Flowers are 2-4 […]

Saucer Magnolias

Saucer magnolias (M. x soulangeana) are deciduous hybrid magnolias (M. denudata x M. liliiflora) as broad shrubs or small trees. They typically grow 20-30 feet in height and width. Saucer magnolias are often called tulip magnolias because of the shape of the colorful blooms. Flower colors range from white, pink, rose, purple, magenta, and burgundy. Flowers […]