Sunday, January 27, 2008

Working with Woody (or Viney) Plants

Woody plants consist of shrubs, some vines, and trees. It’s probably a more important garden element than annuals and perennials simply because of the space that woody plants take up over the long term. You may have inherited some trees and shrubs when you moved into your present home, or you may be considering replacing what you have or installing some new ones. Whatever you’re thinking, choose and act wisely. Allow these bigger plants the elbow room, the deeper prepared soil, and the light they may need.
The reason trees, shrubs, and some vines are called woody plants is that the bulk of their stems, and branches, are, well, woody — not herbaceous. This growth doesn’t wither or die back in the wintertime. Yes, the leaves, flowers, fruits, berries, and seeds may fade and fall off, but the rest of the plant, its “bones,” so to speak, abides. And with each passing year, the main stem or trunk grows another layer thicker, and the plant may add additional branches or woody stems. No wonder woody plants are considered more-or-less permanent, and certainly substantial, parts of a home landscape. The difference between a shrub (or bush) and a tree can be pretty tenuous. Shrubs usually have multiple stems that branch close to the ground, and the plants are often at least as wide as they are tall. Trees are usually higher than they are wide, tend to be larger than shrubs, and usually have one or just a few predominant stems or trunks. These definitions become foggier when a very large shrub gets pruned to one stem to look like a tree or a small tree is trained to have multiple stems and is pruned to be a hedge. In these cases, are they trees or shrubs? Your call is as good as mine!

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