The 'scat plant' has grown larger. It's still in a pot, hanging out by the garden. Not sure if it is this plant, the newly-set out rue or the quickly growing borage, but the squirrels are mostly staying away. I see them rummaging in the perennial beds which is fine. Of course- maybe it isn't the plant scents at all. Maybe after digging through when I turned the soil and added compost, they realized all their horded nuts were removed, and gave up? Regardless, they make a few holes here and there among my lettuce, not nearly as disruptive as it used to be.