when planting a above ground garden do you put a barrier down to stop the weeds from growing up in the garden?

I've had pretty good luck using the landscape mesh on my raised bed garden. I just roll it out over the entire bed and cut slits where I put my seeds. It will last about three seasons before needing to be replaced.

there's a black plastic floor conceal you ought to purchase at Lowes. this is a tightly woven fabrics which will enable water in yet save solar out. without solar, very few weeds, if any. It are available in rolls and is approximately 4-5 ft huge. Many nursery's use it. it quite is powerful stuff.