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| Hello all, I'm brand new to gardening and am taking a once-monthly class to help me get started. My "homework" is to identify the two large trees/shrubs in the back corners of my yard that cast shade over the yard, and how tall they are. Here are photos of the first one: Here is the other: The leaves on the first one are gone, too. Any ideas? Also, any advice on how to figure out how tall they are? Thanks! |
Follow-Up Postings:
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| Agree with Lilac. Tree with heart shaped leaves is a Redbud, Cercis sp. |
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| Syringa vulgaris & Cercis canadensis |
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| One way to figure out the height of an object (in this case your shrub) is to compare the length of it's shadow to the shadow length of an object who's height is known. For example, let's say you drive a pole in the ground until it's height above ground is 6 feet. Then you measure it's shadow and find it to be 12 feet long. Now you know that all objects (at that particular time of day) are casting shadows equal to twice their height. Now all you have to do is measure the length of the shadow cast by your shrub. Just like the pole, the height of the shrub will be one half it's shadow length. Here's another example, this time working with percentages. Let's say your 6 foot pole cast a shadow 4.5 feet long and the shrub cast a shadow 7 feet long. Okay, the pole's height is 133 percent of it's shadow length (6 divided by 4.5). Therefore, your shrub's height must also be 133 percent of it's shadow length. So your shrub would be 9.3 feet high (1.33 times 7). Sounds a little complicated in writing but it's actually very easy to figure out :-) Hope this is helpful, Art |
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- Posted by purpleinopp 8b AL (My Page) on Thu, Feb 7, 13 at 13:02
| If you hold a ruler at arm's length at just the right distance that it starts at the ground and the top of it is even with the top of the tree, your distance from the trunk should be roughly equal to the height of the tree. It's described slightly differently here, and if you have two people, I would use the method here. "A simple manual method." |
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- Posted by ken_adrian z5 (My Page) on Thu, Feb 7, 13 at 13:42
| first.. try the HTML code... rather than the IMG code [i am guessing since i dont use flicker] .. and on preview.. when you do it right ... the pix should be right in the post ... frankly.. i am too lazy.. especially since others seem certain ... and easy way to estimate height.. is to lean a standard shovel against the trunk.. they are usually 6 foot... step back.. snap a pic.. and when you view it on your computer... you can use a ruler to estimate ... if you can gauge your eye height .. to one of the pix i wont look at.. you could guess that way also ... both are deciduous for winter ... all that geometry.. makes my head hurt.. lol ... at least my way is only algebra.. lol ... H = 2x ... wherein x is the shovel.. or any other scale ... ken |
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| Thanks everyone! I haven't tried to get the heights yet... it takes me back to 6th grade math story problems, haha! Thanks again! |
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