Archive for April, 2011

Species Tolerance

Saturday, April 16th, 2011

Tree species vary, sometimes widely, in their tolerance of growing conditions. For example, baldcypress (not a cypress at all, by the way) is found naturally as a major component of southern swamps and wetlands. However, it has also been found to do well when planted in upland areas; particularly in urban settings. Baldcypress has also been found to be fairly drought resistant, once it becomes well established on upland sites. Thus, it is classified as a broadly tolerant species.

Other species may be less broadly tolerant, and their site requirements must be carefully met, if they are to be the “right” tree for a proposed planting location. Presented below is a table that shows the tolerance of some recommended species to several special site conditions that are regularly encountered in Missouri and elsewhere. Click on the image to enlarge.

Avoiding Utility Line Conflicts

Saturday, April 2nd, 2011

One of the major reasons for planting the right tree in the right place is to avoid future interference with electric transmission lines; both overhead and underground. It should be obvious that the best way to avoid future conflicts between trees and utility lines is to plant the tree an appropriate distance from the line so it can grow and reach its normal height and spread without one having to worry about it getting into the “wires.” After every storm, when electrical service goes out , downed trees and broken limbs areĀ  significant members of the several culprits that cause the damage to power lines. Planting new trees in the right places will help alleviate some of this aggravation.

Presented below is a stylized drawing with general guide lines for spacing of trees, based on their expected size at maturity. Click to enlarge the view.

The next illustration provides additional guidance on spacing recommendations in table format, including spacing in relation to buildings and for mass plantings for noise shields, privacy, etc.

A final note about avoiding utility lines: DON’T FORGET UNDERGROUND LINES!!!! Do not plant over waterlines, gas lines, communication lines (TV, phone, etc.), or electric lines. Sometimes the conflict is not always up in the air. One must also pay attention down under the sod. Hard to remember, but important.