What Size Container For Japanese Sky Pencil

Question From: G. Liebich - Albany, Oregon, United States
Q: Will the Japanese sky pencil grow in a container ?If so, how large of container ? The one I want to use is 13 in. high and 12 in. across. Thank you

A: The container should 4 to 6 inches wider in diameter and deeper than the rootball of the shrub. Best And Happy Yardening, Nancy