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hogmanay_gw

how far 'above grade' is too far

hogmanay
14 years ago

I had a few trees that "sunk" after being planted around this time last year (they were bare root seedlings at the time).

Either the hole was too deep or the construction clay backfill (It's all clay here anyway) settled -- or both -- or I made some other mistake.

Out of about 20 trees, only a few were a problem.

Anyway, I've dug them up to "raise" them, but obviously I had to fill the hole a little to correct the problem.

So now a few of them are "above grade" by about 3-4 inches. I have plenty of much around them (but not up on the trunk).

I figure the hole will settle again and they'll be back down around grade eventually. I also made the holes much more "saucer shaped" after reading more about planting in problem areas.

But now I'm wondering if these few trees now siting 3-4 inches above grade are going to have problems.

(FWIW, two are dawn redwoods, one is an american smoketree and one is a common winterberry (more like a bush really)

Thanks for suggestions, advice, etc.

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