Answer: Katsuratree (Cercidiphyllum japonicum) has this reputation, but good care should see it through. Since it is in a container, in my experience it would be much better to plant it immediately rather than try to carry it over the summer in a container at home.
Take care to loosen the soil over a wide area when you prepare the hole, plant it at the same depth as it is growing in the container, and keep the soil in both the rootball and surrounding area evenly moist but not sopping wet to facilitate root growth into the native soil. Use several inches of organic mulch to keep the soil more evenly moist, keep down weeds and feed the soil over time as it breaks down. Spread it evenly over the rootball area but not up against the trunk itself. Staking should not be needed unless it is in a very windy spot.
Water as needed (check the soils an inch or two deep with your finger) to supplement rain until the ground freezes this fall. This tree seems to need supplemental water during hot dry spells for the first few years after planting, so keep and eye on it accordingly. Good luck with your tree!
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