D
dramamine
i think if possible, ppl should give a shot to plant in the ground in amended beds - the difference is enormous in size, if the roots can roam free. the only hustle comes if one needs to overwinter some of them as i see it.
I know it works well to bonsai the plants over the winter in a small pot. Definitely couldn't do too many, I guess, but maybe for those special ones to replant the next year. Works well for potted plants, not sure about taking them out of the beds, but seems like it could work.