Tiffany ...
Thank you for sharing your experience. I have found that pure OM disappears in my hot dry climate. That may not be true in a more humid climate. I don't know.
Adding the cinder rock changes the texture of the soil and allows the OM I put on top to work. I can now use a trowel to dig in the beds to plant bulbs. I do know that OM plays a very important role in improving the soil.
Smiles,
Lyn
