The Q&A Archives: filling extra soil around established trees

Question: We have a Magnolia an Oak and a fir tree they are all old trees which have been established for probably many years. We need to infill the area around them with soil to bring the ground levels up 1 to 2 ft higher. What will this do to the trees if anything, and if this is going to cause a problem is there something we can use to protect the bottom of the trunks?

Answer: Rosalind,

I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!

Adding that much soil is probably going to be a problem as existing roots will be deprived of oxygen. The following web site offers more detailed info on adding soil around trees:

Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!

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