On 2014-05-26 9:10 AM, Ed Pawlowski wrote:

>
> Break up the shells and rake them into the dirt. Yes, they decompose.
> There are a lot of natural soil amendments Coffee grounds, banana peels
> and fish heads help fertilize too.


I crumple the egg shells before throwing them into the composting bin.
When I used the compost material a year of so later there are still
chunks of shell but they later disappear in the garden.