Okay, well I don't think it makes a difference. Plastic isn't light protecting by the way. Anything you ground up will lose some potency over-time, as with rue. May I ask why you are storing powered rue instead of the whole seeds themselves, and then just grounding them up when the time is of use?
'What's going to happen?' 'Something wonderful.'
Skip the manual, now, where's the master switch?
We are interstellar stardust, the re-dox co-factors of existence. Serve the sacred laws of the universe before your time comes to an end. Oh yes, you shall be rewarded.