Thank you for inquiring about MiracleGro Shake N Feed Flowering Trees and Shrubs. This fertilizer should not be applied under mulch unless it is a very thin layer of mulch, and should not be applied near the trunk of the tree. You can apply the fertilizer and then reapply the mulch in a thin layer, or we recommend using one of our other plant foods. If you have any questions or would like further assistance with this matter, please contact us at http://tinyurl.com/noc5mcg and one of our representatives would be glad to assist you.
Date published: 2018-06-12