Hello there, I hope somebody can guide me. I'm something of a novice gardener so forgive me if this is a stupid question.

I have a flower bed that to my shame has been somewhat neglected. I've decided to rip it up and start again (as somebody once sang) and I mean start again. I hacked away at friend and foe alike on saturday. Scorched earth policy.

I want to make sure no roots make a comeback so I can the plant without concern. I've read about 'Round Up'. is that the way to go or is there a better way. I'm afraid I'm looking for the most hassle free option as I'm not dedicated enough to get on my knees with a trowel!

Can anyone give me some tips?

Thanks in advance - VM.