Nice little amur.
I've got two forest plantings of this species. One old, one only 15 years old. They are pretty tough customers.
Both of the forests were buried completely under snow until the beginning of March--I had intentionally provided no mulch for the winter to prevent early bud break--which has begun as early as Feb. 2 in the past. Both were simply put out on the ground in the backyard. At the height of the two blizzards this winter, the plantings had accumulated 5 1/2 feet of snow on top of them. Right before the snow set it, the trees were exposed to a row of low single digit nighttime temps. The snow, as it melted, pulled thumb diameter (and a little thicker) primary trees , completely to the ground in a tight "u" shaped arc. They didn't break--at least not completely--a couple lost their apex and one or two bigger branches. Both plantings are budding out profusely right now, as if the hard winter never happened.