How big of a tree can I straighten without digging a trench?

[matt.jans]

I realize there are lots of variables here, but hoping to learn from others. I have 3 trees I want to straighten. Two are 8-10 inches around and one is probably 20. The smaller ones are birch and beach. Larger is evergreen.

I've read about technique (ratchet straps, tube between strap and tree, etc.). Wondering about how you make the call about whether to dig a trench first. The challenge for me is that the big tree is right next to pavement (driveway) and leaning toward it. So can't dig out on the important side.

Thanks for any tips!

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[ATH]

Are they leaning because they are starting to uproot? If so, I always ask: " why wasn't it rooted well in the first place, and what is going to change so it takes root this time?"

Or are they just growing towards the sun away from competition? Is that competition gone? If not, you are fighting nature, and won't likely win. Even if so, you aren't likely going to be successful straightening the bigger tree. If you have an anchor point, you could gently pull the smaller ones a little closer to vertical. Do NOT wrap anything completely around the trunk. Use a wide flat strap and readjust that periodically so the tree can grow in diameter. I don't recommend trying...but there are my thoughts if you must.

 

[matt.jans]

Thanks for the tips! The smaller ones may be trying to escape competition. I'll have to check. The larger one may be leaning because it's right by the driveway (and leaning toward it). I don't think the previous owners of the property paid much attention to the trees, so I bet it's been leanibg for a while. None look like their leaning due to uprooting.

Thanks for the advice!

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