Big trees get big problems. Part of our job is to tend to these problems before they become dangerous. Many of these problems are somewhat easy to identify. A deteriorating ponderosa pine with browning foliage it difficult to ignore if it is tall enough to be seen above the rest of the forest more than a mile away.
There are a few problems that are not so easy to identify. Some are caused by the weather, without prior warning. Others are hidden in the forests. One might think that those in the forests would not concern us. However, our landscape and facilities are so intricately mixed with the forests.
The shiner in the picture above was where a big broken limb needed to be cut from a big fir tree. It may not look big in the picture, but the limb was probably more than nine inches wide, and long enough to weigh a few hundred pounds. The lower right edge of the shiner is frayed because the limb broke right at the trunk, and was hanging vertically against the trunk.
The yellow arrow in the picture below indicates where the shiner is located. The trunk of the tree is not as tapered as it seems to be in the picture. It only looks like this because it is so tall that the the upper portion is very far from the camera! Although this fir is a wild forest tree, it is only a few feet from the cabin below. The broken limb was dangling directly over the roof!
There was no way to predict that this limb would break. It did not seem to be any more structurally deficient than those that remain. Of course, once broken, it was removed faster than I could get a picture of it.
Saint Joseph did not have it so good. He is still the most famous carpenter, and somehow got the most excellent city in the World named after him, but he did not work in a shop like this one. The most well outfitted carpentry shops back then lacked modern power tools, and the selection of woods that are now so easily imported from all over the World.
The best lumber in this shop at the Conference Center (where I work in the landscapes part time) is actually not the exotic sort. Three very important timber crops, (coastal) redwood, Douglas fir and ponderosa pine, happen to be native. A few of the larger of these trees that need to be removed get milled into lumber that gets used here.
Much of the lumber shown in this illustration is recycled from old buildings that were built from local lumber at a time when it was not so practical to import lumber to such a remote location. The rack on the back wall, at the center of the picture, contains old doors that are ready to be recycled. Flooring and moulding were made from native oaks, which are not the easiest to mill, but happened to be the most available. Nowadays, most of the lumber used here is procured from the lumber yard across the road, but it is neither of comparable quality, nor very interesting.
What is most interesting about the carpentry shop is not seen in the illustration above. There are a few on the Maintenance Crew who are proficient with structural carpentry, and one who is a finish carpenter. The finish carpenter is as proficient with carpentry as arborists are with trees that produce lumber. He is very familiar with all the various woods, and what they are useful for. It is his expertise that will ensure that the old recycled wood, as well as newly milled wood, will be utilized accordingly.
More of my bragging about the Maintenance Crew can be found at: https://tonytomeo.com/2018/10/10/horridculture-lessons-from-motivational-posters/ .
Even those of us who live nowhere near its natural range live closer to Douglas fir, Pseudotsuga menziesii, than we realize. Most of our homes are constructed from Douglas fir lumber. Although very uncommon in landscaped gardens, Douglas fir is the most popular Christmas tree here. Trees introduced for timber have naturalized in parts of Europe, Argentina, Chile and New Zealand.
It is such a grand evergreen conifer that Oregon designated it as the state tree. The tallest trees in the wild are more than three hundred feet tall! Trees that do not compete within a forest do not get even a quarter as tall. The flattened needles are less than an inch and a half long, and arranged on opposite sides of the stems. Light brown female cones with jagged bracts hang downward.
Douglas fir is a native of the West Coast between about the middle of British Columbia to the North, and the Santa Lucia Mountains and the Northern Sierra Nevada to the South, with a few small colonies beyond. Rocky Mountain Douglas fir is another variety from farther inland. Because it is so big and structurally deficient, Douglas fir is almost never planted into landscapes intentionally.