Saving money is a priority. I have free access to grass clippings and pine needles. I grow vegetables in containers on a southern facing porch so they dry out quickly. When rain water is not possible to use, I use faucet water which is 7.2ph. I'm growing pole beans, tomatoes & green peppers,

Would like advice on which mulch I should use on which plants? Or should I use a combination? Thank you.