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Asked by
Mark Reinke on
July 3, 2017
Clyde, Idaho - Zone 3

Q. Siberian Pea Trees

Hello. I currently have four mature (roughly 8 feet tall) Siberian Pea Trees in my yard. Unfortunately, I think they were originally planted to close together. Regardless, I was curious how difficult it is to dig up the root system, and possibly separate the roots somewhat to turn 4 into 8 and then transplant slightly further apart. They are currently an excellent wind break, but again, are simply too close together.

Answered by
DLarum on
July 3, 2017
Certified Expert
A.

I would not transplant them now until fall when weather is cool. Transplanting in the heat of summer causes unnecessary stress to plants. When you do dig them up, you can remove the soil from the roots and see if it is possible to divide the plants safely. These articles may help
https://www.gardeningknowhow.com/ornamental/trees/caragana-pea-tree/pea-tree-information.htm
https://www.gardeningknowhow.com/garden-how-to/propagation/propgen/dividing-plants.htm

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Asked by
pat.milligan on
September 14, 2018
KA 1 2JR

Q. I have a weeping Caragana pea tree which is 25 years old & im concerned about how thick the trunk is becoming also wondering about

what length the root system might be I’m wondering if I should start with a new tre as I’m having part of my front garden altered to drive for my car &I not sure if in time the roots from the existing tree could pose a problem to the new drive which is going to be mono block

Answered by
drtreelove on
September 14, 2018
Certified Expert
A.

It's a shame to lose a mature tree for the sake of a driveway, but yes, tree roots and pavers are not a good match. Beside root length, they expand in girth and can lift and displace the pavers.

If you value the tree, consider alternative routing of the driveway, or root pruning and installation of a root barrier.

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