I received a Giant Sequoia sapling (Sequoiadendron gigantum) approx. 6 inches tall and immediately potted it. My intention is to use it for bonsai and allow it to grow a bit more, but my concern is whether or not it can survive above ground during an Ohio winter. I recall seeing older, more established bonsai lying dormant above ground and they do just fine the next spring. But this sequoia is very new and I worry that if I do not get it established into the ground the roots won't get the insulation they need. Leave it in the pot or transfer to the ground for the coming winter??