homemade pickled brussel sprouts

After enjoying these too much from the Whole Foods olive bar, I purchased some brussel sprouts to make homemade pickled brussel sprouts. I'll probably use this recipe:

http://allrecipes.com/recipe/zesty-pi...

and add red onions, carrots, and jalapenos.

However, I've never canned.
If I put them in the fridge instead, how long will they last?