Self made Miracle Grow. Put 1 Tbs. Epsom Salt, & 1 Tbs. Sugar into each hole with your plant. It makes them grow larger, leafier and greener. Or dissolve 1 Tbs. Epsom Salt into 1 Gallon of water and use it to water your plants, trees, fruit trees, roses, flowering plants, squash,and all other veggies. For plants you have planted in ground or pots sprinkle Epsom Salt on top of the dirt/potting soil and water well. See Link for other ideas.
Home Made Miracle Grow - Make your Own - The Gardening Cook
Lay down a thick layer of CARDBOARD in your raised garden beds to kill the grass. It is perfectly safe to use and will fully decompose, but not before killing any grass below it. They’ll also provide compost and food for worms.
How to Build a Raised Bed Vegetable Garden out of Wood