Today is Arbor Day, the traditional day for planting trees. Most of us treasure trees. Planting one is an act of faith, something we do for our children, and perhaps our grandchildren. Sadly, thousands of our nation’s trees now reaching maturity are destined to an early death. They were doomed the day they were planted.
Gardening practices have changed over the years. The days of digging a huge hole for a new tree are over. Research has shown that planting a tree too deeply is a sure recipe for trouble.
What comes to mind when I describe a tree that has heart-shaped leaves, is in the poplar genus, grows well in Colorado and turns a brilliant gold in the fall? Chances are, you didn’t immediately think of cottonwoods. Yet, when it comes to putting on a show, cottonwoods are every bit as spectacular as their close kin, the aspen. In many ways, they are the other iconic Colorado tree. Find any stream, pond, or irrigation ditch, and chances are there will be at least one cottonwood growing next to it. They are riparian trees, and prefer to have their feet wet.
Stands of bright gold aspen shimmering in the sunlight are a spectacular sight, so it is no surprise that many people plant aspen in their home landscapes. Sadly, aspen is probably not the best choice for local gardens. The same qualities that make aspen perfectly suited for colonizing mountainsides denuded by fire, rock slides and avalanches create problems in more constrained spaces.
With the surge in environmentalism, many people are trying to decide which is “greener,” a real Christmas tree or an artificial one. Both have their pros and cons. There is, however, a third alternative. You can decorate a still-living tree this year.
Most nurseries and garden centers sell potted Christmas trees. You bring them indoors for a brief spell (a week at most) during the holidays, then plant them permanently in the ground.
Still-living trees cost more. No one wants to pay a premium for a tree that still has roots, only to have it die after moving it outside. While planting a Christmas tree isn’t difficult, you should do the same research and preparation that you would do when choosing any tree for your yard.
First of all, make sure you have the right tree for the right place. Consider how the tree will fit into your overall landscape plan. Most evergreen trees get very large. That cute three-foot fir may have a mature height of 70 feet or more! Instead of trying to cram a giant into a small suburban yard, choose a dwarf specimen instead—or arrange to plant it elsewhere so it will have room to grow.
The very cold nights we had last month, coupled with recent snowstorms, have badly damaged flower buds on crabapples and other popular spring bloomers.
Flowering crabapple trees, with single to double blooms of white, pink, or carmine, are a beautiful symbol of springtime. Varying widely in form, cultivars range from small upright trees 15 feet tall to umbrella-like specimens more than 30 feet across. Some form narrow columns; some are weeping. Many produce small, ornamental fruit that lasts all winter, in shades of yellow, orange, or red. The simple green leaves of some varieties may have a reddish cast, especially in the spring. ‘Indian Summer’ is an example having orange fall foliage. ‘Molten Lava’ has attractive yellow bark. With over 200 cultivars available, you can choose a tree that matches your site and provides four seasons of garden interest.