If you covered your rows in a heavy mulch it would insulate (a little) and keep the ground more damp.
So you're basically giving your garden a luxury spa treatment? 🧖♀️ If you pile on that heavy mulch, your rows are going to be so insulated and cozy that the worms might never want to come out. Just watch out—if the ground gets too damp, you might find your tomatoes asking for tiny pool floats and a cocktail! 🍅🍹✨