How to Correct a Leaning Tree

Q: My neighbors planted a plum tree two years ago. Over the past year and a half it started leaning over. They recently put some rope supports on its south side to try to pull it upwards. Is it too late to correct this lean? Any suggestions?

A: From your photo it looks like it was planted too deeply. I don't see the expected root flare at the soil surface which would have prevented the leaning. The planting depth can't be fixed at this point. I would install a heavy duty wooden or metal stake on the opposite side of the lean. Use a strap with grommets around the upper trunk and pull the tree upright. Each year check the strap to make sure it doesn't need to be replaced or repositioned to avoid damage to the trunk. After a couple of years the owner can try removing the support altogether and observe for a couple of weeks to see if the tree begins to lean again. I suspect it may need support permanently.

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