I’ve already applied new mulch. How should I feed now?
The products are best applied prior to adding mulch. If you have already mulched you have two options. First, you can pull the mulch away, apply the plant food, and re-mulch. If this is not desirable you can apply directly onto the mulch, but you will need to double the application rate. This is needed because the mulch is decomposing and this decomposition process will take nutrients from the plant food application. To ensure your plants get the food the higher rate is required.