How is the best way to keep weeds out of my flower beds?

I've used bed liners before but they didn't keep the weeds out.

How is the best way to keep weeds out of my flower beds?
There are two ways. They can be used together or apart.





First, you can place landscape fabric (buy at Walmart, Lowes, etc) around the plants and mulch on top of the fabric.





Second, you can use a product called Preen, which prohibits a seed from germinating.





Both do a great job for a variety of situations. I have used Preen and will use it again this year. It is fantastic.





Landscape fabric also helps prevent grasses from coming up (that are not generated by seed), so it is helpful also.





Put them both together and you have a winning combination.
Reply:fabric stuff
Reply:dig your garden bed up to remove all weeds then the cheapest way to keep weeds out is with old newspapers.put on garde and either decorate with stones on top or put mulch (hay) etc.
Reply:you can get weed control fabric at your local garden center,put it down with mulch over top and no more weeds
Reply:Loosen up the dirt in your flower beds, split open the sides of heavy duty black trash bags. Line the beds with the trash bags and cover with dirt. I then add mulch on top of the dirt. Not only will the bags smother the weeds underneath, it will help retain moisture on top.