A few things to consider when making a selection between a hardwood mulch, dyed mulch, rubber mulch, or decorative rocks: When buying mulch you should add a little extra to the amount for settling. With mulch being basically sticks, there can sometimes be voids when spreading which could settle over time, so buy a little extra to compensate. Do you have bulbs or plan to plant bulbs in the future? If so you may want to consider mulch as the plants can grow through the mulch with minimal restriction. However if you chose to go with a decorative rock you should select a smaller size to help reduce restriction for the bulb to push through. No matter what a product you select we can help you chose the right product, color, and we even deliver to your house for you!