Adding coffee grounds contained by garden? Does it make the soil PH go up or down? Is it...

Does it make the soil PH go up or down? Is it honourable for peppers, tomotoes? Should I work it into the soil or just sprinkle it on top?
Blackberry - Loch Tay?
Answers:    Too much nitrogen medium bushy plants with little fruit. I use coffee grounds for my roses. They like sharp soil.
For lawn-seeding contained by the Fall, is outside...
http://www.bluegrassgardens.com/coffee-g...