Cytospora Canker

Evergreen trees with dying or dead lower branches likely are affected by a disease called Cytospora canker. This fungal disease is particularly problematic on mature Colorado blue spruce trees, although many other types of spruce, pines, firs, and larch are susceptible. In addition to causing branch dieback, lesions form at the base of the branch, often with an excessive amount of resin. To learn more about this plant disease and how to deal with it, read this article…  info

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All-America Rose Selection Winners for 2006

Every year the All-America Rose Selections program announces their choice of the best new roses of the year. Two floribunda roses, a grandiflora and a hybrid tea are the 2006 All-America Rose Selections winners. These four selections, extensively tested in trials throughout the US, were chosen as the top scoring roses in their classes and are now available for planting. To learn more about these great roses, read this article…

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Ginkgo, Ginkgo biloba

Thought to be extinct until discovered in the late 1600’s, gingko is an ancient tree from prehistoric times. With distinctive, fan-shaped leaves that turn a beautiful gold in fall, this is a great ornamental addition to landscapes. It is a slow-growing tree that starts out columnar in shape but becomes more upright and spreading with age. Numerous cultivars offer choices of non-fruiting (male) clones, improved fall color or different growth habits. Learn more about gingko in this article…

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‘Tiger Eyes’ Staghorn Sumac, Rhus typhina

Looking for a striking foliage plant? Tiger Eyes™, introduced in 2004, offers a long season of interest with deeply-cut, almost lacy leaves that start yellow and turn orange in fall. This medium-sized, slow-spreading shrub is a big departure from the typical staghorn sumac. Learn more about Tiger Eyes™ sumac in this article…

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Amur Cherry, Prunus maackii

In cold climates with long winters, it’s nice to incorporate plants with winter interest in the landscape. Amur cherry is a small tree from the Far East that has cinnamon-brown exfoliating bark that is most prominent in winter, when the leaves have fallen. To learn more about this attractive, underused tree hardy to zone 2, read this article…

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Landscaping In Spite of Black Walnuts

Black walnut trees can have a dramatic, negative affect on certain plants. Black walnut trees, and a few other types of trees, produce a chemical called juglone that causes wilting, yellowing of leaves and sometimes the death of susceptible plants. To learn more about juglone toxicity and which plants are suceptible, read this article…

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Concolor Fir, Abies concolor

Native to the western US, concolor fir is a great  evergreen tree for the Midwestern landscape. It is one of the most adaptable firs and is a good substitute for blue spruce. Slow-growing, with an almost perfect pyramidal Christmas tree shape, this tree needs little maintenance in most landscapes. To learn more about concolor fir, read this article…

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