We bought a 5 gallon potted dwarf albert spruce for Christmas - want to support our tree population We kept our tree inside for 2 weeks (as research suggested), watered enough but not too much to keep the very small and fine roots moist, and sprayed need=m oil on the needles to minimize evaporation. Now our tree is in the garage exposed to light from a south facing window. the pot is in a bowl with no more than 1" of water the bowl and pot are surrounded by cloth and foam wrapping - not the branches Should we be concerned about the roots or the water in the bowl freezing if the temp dips way below freezing - we live in Grand Ledge so this is a possibility Please advise Many thanks! Barb