Experts and BHG readers answer.
Mulch for Tomatoes
You can use pine bark mulch around tomatoes. Organic mulches, such as pine bark, tend to keep the soil cooler, which is an advantage in Florida.
One reason wood chip or bark mulches are not often recommended for use in vegetable gardens is that they take quite a while to break down. This means that you may need to rake the mulch off to replant the area for the next crop cycle. If you decide to till the mulch into the soil, you should add additional nitrogen fertilizer to help break down the woody fibers.