I don't throw any coffee grounds away............ever. Depending on the time of the year, I am either broadcasting the grounds around azaleas or dumping them into my potting media. I custom make all my own potting mixes in a 5 cf. wheelbarrow. I just mix it into the media. It does no good in the short-term, but given time, these grounds become a weak organic fertilizer. I used to believe that the grounds were acidic, and thus my using it around the azaleas. It is basically neutral, but still, as it breaks down around those bushes, it feeds them organically.
