Does Potting Soil Go Bad?

Good Question

Q: This may not be a "good" question so much as a "silly" question, but I really don't know. I've had a bag of potting soil sitting in my entryway for a good 8-9 months. I'm looking to start (yet again) an indoor garden for the summer, and I'm wondering if it's okay to use that soil. Or does it dry out? Do the nutrients disappear? I have no idea. I'm a gardening newbie. Thanks!

Asked by Elle

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(Image: Scott Arboretum)