Sango-kaku acer Japense maple in a heated garage
We bought a medium size Acer in a pot late last fall. We were advised to keep it in our garage over the winter so that the roots wouldn't freeze before we could plant it out in the spring. The trouble is we have been heating our garage because of our vintage car (it can get to be -20 C in the winter here in Norway).
The Acer receives some light from a window and has now started to produce new foliage. How do we keep it alive until we can plant it out in the spring? Do we water it regularly? What should we try to keep the garage temperature at? When will it be safe to plant it outside?