Some plants like the radish has shallow roots and will not hurt plants like tomatoes unless you let the radish get too big! Since the radish grows fast it will shade out other bad weeds! Let the radish grow for 2 weeks then scrap the top of the soli and the radish is gone but still good for a mulch by just leaving the scrapped radish inbetween the rows!
I enjoy fishing ,gardening and a solar greenhouse! carpet installation repair and sales for over 45 years! I am the inventor of the Bobber With A Brain - Fishing Bobber!