Question by  oldgardner (1)

How much soil can I add around the base of an old Red Japanese ornamental plum tree?

I am building a brick plant circle four bricks high around the tree and plan to plant annuals. I want to add soil but I don't want to damage the roots. The tree is huge.


Answer by  annlees (74)

If you add soil over the roots of any tree, the tree may die due to lack of adequate oxygen absorbed by the roots.


Answer by  Liz59 (10966)

Yes, that is a bit of a tricky matter. But normally the rule is 4 cups of soil will be good for this tree. I know you don't want to damage the roots, but remember you have to carefully plant around the roots for the soil to be enriched and taken in by the tree.


Answer by  Brandydog (631)

Be careful not to add too much! If you do the moisture in the soil will cause the trees trunk to rot. Gradually add small amounts so it can adapt.


Answer by  Carol37 (569)

While I know what you are planning is lovely, you must be careful not to smother the tree and its roots. Soil , four bricks high, will not give the tree its necessary breathing room unless you keep the soil from actually contacting the tree. Try a circular bench.

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