overgrown raised beds
I bought a house recently and it has several raised beds. I've never grown vegetables before but decided to try this year. The beds are overgrown and I've attached a picture of all the stuff I pulled out of one bed. How thorough do I need to be in cleaning it up. I could imagine spending quite a while getting all the roots and debris our. If I've removed all the big and medium stuff and turned up the soil 10-12" down, is that good enough or do I need to be extremely thorough to keep things from growing back that might impact the garden?
Thanks for your help from a newbie.