Jim Carlock said:

"Sue" wrote:

Do the coffee grounds and banana peels add nutrients or are they
just to make the soil more water retentive?

Coffee grounds add magnesium and some other things, I think
magnesium is the big bonus from coffee grounds.

Coffee grounds add nitrogen, potassium, and trace nutrients.
Despite their color they are a 'green' compost ingredient.

Worms seem to love coffee grounds.


--
Pat in Plymouth MI ('someplace.net' is comcast)

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)