yeadude, u cant leave them outsdie for a month and leave, they wont be there when u get back or will be garbage when you do, i would suggest either A. drying them right now ASAP like 1 or 2 days before u leave, make sure they are dry enoug hand then jar for a month until u get back maybe a family member open and close the jars everyday if u can or B. chop them all down and leave them hung upside down without any leave cut off and leave for a month, when u get back put them into jars ASAP and maybe mist or put a little moist paper towel with them to maybe give them some water back, i dont know this isnt a good sitatution no matter how you look at it
the option of juist letting them go and dry out in the pots may be viable as well, im not sure as ive never done it, good luck,.