Crazy to think I can control size of trees?

gregbradley(Upland, CA USDA 9b Sunset 19)February 12, 2014

I have recently planted 5 Lophostemon Confertus aka Tristania Conferta aka Brisbane Box, Vinegar Tree, etc. along the West side of my house. There is a block wall 10' West of my house with the CA required 2' wide and 2' deep reinforced concrete foundation. The 24" box trees were planted very close to the block wall foundation so the trunks of the trees are about 15" from the block wall foundation and about 24" from the wall.

I originally assumed these would give me the shade that I NEED for a few years while my West side shrubs grew up to replace the large ones that were destroyed by the morons that built the wall.

I need to dig a trench 20" East of the trees to run a drain line from the back yard. Since I will dig that trench with a mini excavator, installing a 24" deep root barrier (www.deeproot.com) would not be difficult. This would give me the effect of a 36" x 40' container with no bottom for the trees. My research on citrus trees has show that their size is severely limited when they are grown in containers. Am I crazy to think this would limit the size of these trees?

Here is a picture of one of these trees that has been growing in a local shopping center for 20 years since planting. This is about the maximum size that I would like to see these trees get before the would be a problem.

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calistoga_al ca 15 usda 9

I have one here planted 20 years ago, and size has not been a problem. With no care since planting, including no water other than winter rainfall, this tree has been a very satisfactory addition to our woodland site on the north slope of a mountain. Al

    Bookmark   February 13, 2014 at 9:19AM
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stanofh

It might limit the size by making the plants unhealthy..you have to consider that. Limited water,nutrients. I've seen those as street tree's,not very large tree's..but not like a shrub grown into a tree like many sidewalk tree's. You might just plant them and keep an eye on height. Pruning or shearing to keep the height down.

    Bookmark   February 15, 2014 at 2:29PM
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