The term “canker” refers to a lesion on a twig, branch or stem, usually caused by a bacterial or fungal pathogen. The appearance of cankers varies, depending on the host and the pathogen. Often, the bark of the affected stem or trunk is sunken and discolored. Fluids may ooze from a canker or fungal fruiting structures may appear on the bark covering or surrounding the lesion. In some cases, lesions remain small and isolated, causing no major problems for the host plant. In other cases, the canker spreads widely, causing death of twigs, branches or even the main trunks of trees. The best known example of the destructive potential of a canker disease is chestnut blight, caused by the fungus Endothia parasitica, which caused the virtual extinction of the American chestnut within 40 years of its accidental introduction to the United States in about 1900.

There are three reasons people don’t plant magnolias anymore: 1) Everybody assumes “magnolia” means only the saucer magnolias (Magnolia x soulangeana) they remember from their youth, which, 2) ate all of Grandma’s front yard, and 3) had its flowers blasted every third year by a frost. Now, listen to me carefully: These reasons are dumb.

With surprising regularity, some poor schlep of a volunteer from a community garden – abuzz with visions of plump, perfect sweet cherries, heirloom apples, and sugar plums dancing in his or her head – will email me with a simple question that they expect will have a simple answer. The question is always some variation on this: “What apples, pears, and peaches would you recommend for a community orchard?” I wish I could see the looks on their faces when they get a big old heaping serving of attitude.

You may hear people speak of them reverently. You might catch word of a “big tree,” an important tree, a “Champion Tree.” But trees don’t compete for titles; they grow their own crowns and are made into trophies instead of receiving them. Trees do compete though. Rooting space, water, light, pollinators, producing many seeds, and so on are the prizes trees, by their nature, seek. It’s the winners of these competitions that we humans notice and some of these winners are named Champion Trees.

So what is a “native” tree? It can be any tree from a state or region. The deciduous trees considered for this article are native to North America, and once established, should grow and survive in their planted areas. Most are tough trees rarely affected by urban life and environmental issues.

Some gardeners seem highly interested and motivated to plant native trees. Native trees appear to adapt better to landscape environments compared to alternative species, and they help protect and restore biodiversity. Natives are effective for use in urban, suburban and rural developed landscapes.

Below are 15 trees to consider for your landscape or property with important notes and descriptions about each. I hope you carefully study these and consider planting a few in your property. They are durable yet functional native tree choices.

Plants are often subjected to stresses in the environment that are not results of insects or diseases. These stresses are referred to as “abiotic” diseases. These abiotic disorders result in the plant being less vigorous and in many cases dying. The majority of these stress situations are the result of human activities.

As an arborist, I work with a lot of people who care deeply about their trees and shrubs. Almost once a week, I will get a call from someone who is alarmed that something new they’ve noticed on their tree might be a major problem. Sometimes it is a problem that needs help, but often it is something that looks bad, but isn’t. Here are some of the common issues that arise.

It is no secret that plants come in many shapes, sizes, and growth habits. For those of us who are fortunate enough to know the joys of gardening, we get to take advantage of this great variety when creating our own personal Eden. Two nearly identical groups of plants that are both fun to work with and practical, are columnar and fastigiate evergreens.

Learn about the Bald Cypress in this plant profile video.

Winter can be a difficult time for our trees and shrubs. Cold weather, snow, wind and more threaten their health. I’ve seen too many trees and shrubs lost that could have been saved with the right care. By caring for the roots, stem and crown you can maintain healthy and attractive plants through the most trying season of the year.

Gardeners hungry for great plants in small spaces will quickly welcome the ‘Ruby Falls’ weeping redbud (Cercis canadensis ‘Ruby Falls’) into their landscapes.

‘Ruby Falls’, bred at North Carolina State University from other purple-leafed redbuds ‘Covey’ and ‘Forest Pansy’, has the strong pink flowers of its parents – and their deep purple to shiny burgundy leaves that fade to green.

Neighborhood street trees increase property value, save energy and help with storm water retention. They also create shady, walkable sidewalks ...