Mark Contra : I'm on board with Paul W.s play nice rule, so this isn't to be taken as snarky, but with out knowing the ph of your soil and your 'night' soil, I don't think
anyone could
answer that ! Obviously you would want to keep that stuff away from acid loving plants like blue berries.
Or did you just mean is it safe for the bacteria in your compost pile/ I think we go back to my original thought ! Not really
enough information for a good guess !
For the Craft ! Be safe and warm ! As always, your questions and comments are solicited, and are Welcome ! PYRO AL