Hi Larissa, thanks for the question.

Looks like millipedes, symphylans can look similar, but these seem to have two pair of legs per segment. Moisture and partially decaying debris are an invitation. Rain and poor drainage can drive them to the surface.  In most cases, unless their environment becomes dry, they will leave your plants alone.  Symphylans are more likely to damage plants. You can physically remove them (wear gloves) or try some diatomaceous earth to dry them out. Check out the following link:

Centipedes and Millipedes Management Guidelines--UC IPM (ucanr.edu) 

I hope this is helpful.