Are there any interactions, and is it safe, to take escitalopram 10mg with either or both of l-arginine and / or korean panax ginseng 2000mg?

You are only on a mild dose of escitalopram and the addition of the L arginine and ginseng should not be a problem to take together. The latter 2 substances are supplements to the medicine you take.

I do not see any evidence to suggest that these medications affect one another.

Please be aware that the FDA does not investigate supplements like Korean gensing and most physicians won't endorse them because of the possibility that they may contain contaminants that could interact with meds like escitolopram & cause dangerous reactions. Also the proper doses of supplements are not known & their effects are not verified scientifically.