Be careful. Bricks don't do well if in ground and subjected to cold winters. Papers are fired at a much higher temperature and will always be more durable. Bricks will chip and crack over time.
Somewhat misleading.
Nitogen ? Coffee grounds rank only a 1 on the N in an NPK ranking.
Without composting . them first, coffee grounds contain caffeine. Caffeine can be problematic. Best to use that only on paths to inhibit weeds.
