HELP! newbie

HELP! newbie

I live in a rental house and the people that lived there before me never touched the front garden. It was so badly overgrown with weeds and dead bushes. My darling, and now very tired, boyfriend helped me rip up, dig out and trim what was there. It already looks a billion times better. I would like to plant flowers, I will likely be buying flats of annuals and perrenials, not from seed. My problem is that I have no clue what I am doing. I need to find a way to control the weeds because even in the four days since I ripped things out, some are starting to grown back, but what I can I put down that will not kill the flowers? An organic herbicide was suggested to me, will this kill my flowers once I plant them? How do I go from huge pile of dirty to pretty garden? I am assuming it needs to be fertilized and new top soil put down? Is this right? I have never had a garden before. Please help me!!!!
help!

help!

First Pictures

First Pictures

another ID pls. hehe

another ID pls. hehe

cherry tree

cherry tree

Seedling Status

Seedling Status

Yuck!!!

Yuck!!!