Answer: Tree roses are normal roses that have been specially grafted onto a tall stem, thus creating the lollipop or tree form.
According to your zip code, you are gardening in USDA winter hardiness zone 6. In that area, it is better not to plant it in the ground. Instead, you would need to grow your tree rose as a container plant so you can protect it appropriately during the winter months.
In late fall, you will need to bring it into a protected but cool place such as an unheated garage or basement in late fall after several frosts. Temperatures should be above freezing but below about 40-45 degrees so the plant will not try to actively grow while it is indoors. In the spring as temperatures settle you would take it back outside to wake up naturally with the season.
To maintain it as a container plant, keep the soil evenly moist like a wrung out sponge and fertilize regularly from spring to fall. In the fall, stop fertilizing to encourage it to slow down for the winter. When it is resting for the winter, water just enough to keep the soil from drying out completely.
Enjoy your tree rose!
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