Question
I understand that used coffee grounds act as an good fertilizer---but for what and how do you apply.

Answer
I sure do hope you like coffee, Richard.

Because Earthworms LOVE Coffee grounds.

I'm not kidding.

I know what you're thinking.  Coffee is acidic.  People who want to grow Blue Hydrangeas and Blueberries are advised to use Coffee Grounds to get their soil pH wayyyyy down.

But that's not really true, Richard.  The pH of a cup of Starbucks Ethiopian Black Coffee is around 6.3.  The Coffee GROUNDS are close to neutral, with a pH around 6.7.

Neutral pH is 7.

How?  Popular science says that the Coffee leaches out of the used grounds and most of the acid goes with it.  Whatever.  6.7 is a grass-happy pH.

Starbucks gives these grounds away for FREE!

Take a garbage pail down to your local friendly Starbucks and get their day's supply of grounds.  They'll be glad to see you.  Less work for them.  And very pro-Earth.  Good for business.  Great for conditioning your Soil.  Lots of vitamins and minerals in VERY slow release form.  And although you did not mention it, for the record let's point out slugs won't cross a line made of this stuff.

Your comments invited.

L.I.G.