Develop Sekka Hinoki in low unglazed pots (e.g. Japanese terracotta pots)
Try to overwinter the Sekka Hinoki in a frost free place. The trees that have overwintered free of frost will grow out faster and ealier than the ones that have been in frosty conditions.
October is one of the rare time slots where the sap flow on two needle pines is low and the tree can be needle plucked.
Do keep in mind that the preferred time for major pruning work is mid summer. In our time zone that is July.