I just received ten baby trees from the Arbor Day Foundation. They're all *tiny*. Since I can't plant them tonight, I stuck them in the fridge, where the instructions say they should be okay for a few days. I have a potential problem: I live in an area with black clay. A lot of plants die because they can't get their roots through the soil. In order to give the trees a better chance of surviving until they're stronger, I thought of planting each one in its own planter. I have some deep planters (I'm not sure how deep, but they're a couple of feet high), or I could go buy some 5 or 10 gallon buckets if that would be better. My question is, would this work? And is there any chance the trees could hang out in 5 to 10 gallon buckets for the first few years of their lives without harming them? If it helps, I'm in zone 7 (NE Texas), and the trees are various types of flowering trees (dogwood, crepe myrtle, etc.).