In late August and early September before it got very dry there were a lot of volunteer annuals popping up in unusual places around my yard.
Several petunias sprouted from the patio pavers:
I’m not sure how these nicotiana seeds got transported to the side of our house near the air conditioning unit:
I found a clump of petunias growing out of the bricks behind my husband’s truck:
And I even found some coleus volunteers: