Yesterday I pulled out a bag of Miracle Gro potting soil that I had opened last year, partially used, then put away. Inside the bag were clumps of sprouts -- they looked (and smelled) like bean sprouts. I can't imagine what they are, or how they got there.
Let me say, I'm really not much of a gardener. The only gardening I do is container gardening with pots on my deck. And I don't plant seeds; I buy plants at the nursery and plant them in larger containers that stay on my deck.
What's the likely story on these sprouts? Thanks!