The red blooms of the chrysanthemum by my drive held on unusually late this year. Water was plentiful and it made a good stand. In the next yard, a brilliant red Euonymus, burning bush, popped forward, connecting the two yards in a visual field greater than each yard alone.
Marking time quietly throughout the growing season, these lovely border plants plied their trade as accents. But late autumn – and the right conditions — provoked a coincidence of colour, creating community that, upon wider view, carried a harmony all the way down the block, picking up speed through the neighborhood.
Each plant, each bush, a bit of information, flush with change, stepping out of a homogeneous background to momentarily form a message, letters of a word we recognize – autumn, late flush – resonant individuals with a bigger message, for a season.
Shouldn't...but Do 
Wonderful imagery, and you have a great eye. I love seeing this sort of thing…driving down the street and being surprised by the accidental relationships between yards.