I started my dahlia tubers indoors several weeks ago. They were not getting enough light and the stems have grown tall and rather wimpy looking, to the point of leaning a bit. I wasn't home enough to set them outside every day so I put them close to the windows with the most light. I had planned to plant them in the ground a week ago but we had some heavy rain followed by frost warnings this past week. In the meantime the plants continue to get taller. My question is whether or not I can plant them beyond the first set of leaves to give them a better footing. If so, do I cut these lower leaves off? Could they be topped lower than the very top growth? This is my first attempt at anything other than directly planting tubers. Thanks, unc