No it's not onion. I am in south Georgia, but I pulled some out to make sure it wasn't onion. They are a little thicker than wild onions.

I also have a few patches that have grown to about a foot tall.

Looks like some sort of bulb.

Let it grow ans bloom so you can identify it.

something like asphodel fistulosa?

It would be useful to know if the leaf blades are tubular or flat.

These are tubular. And the have a white flower bloom if they grow long enough

Mmm. Nothing's coming to me.

Let one flower and take a picture.

Most of the plants that look like that are various wild garlic and onion and you should smell them.

OP maintains this isn't an onion but didn't state explicitly that they had rubbed and sniffed. Perhaps s/he could verify that there is definitely no smell when leaves are bruised?

Here is the flower. It's not onions.

Oh good grief! Those are Narcissi! N papyraceaus aka Paperwhites. How could you ever have thought they were weeds ;-)

BTW look again, the leaves are not tubular, they're flat. But the flower stems are tubular.

Are they seasonal? Cause if not I want to get rid of them!

They flower in winter/spring and then the leaves will die down until next year. You can just mow over them after that. I am amazed you want to get rid of them. Most people plant them on purpose as a lovely, scented bulb. They are not hardy in my climate but we grow them indoors to bring a breath of spring inside in the winter. Paperwhites

I agree they are nice looking but they are scattered all through my grass. I'm pretty particular about my grass so I definitely don't want these just springing up everywhere.

Could I dig up the bulb and relocate them?

Certainly you can move them, although bulbs in grass are a classic look. To be blunt, that grass is pretty rough and there's a whole stack of 'real' weeds in it. It's obviously a matter of opinion but to my eye flowering Narcissi would enhance rather than detract. By summer when the grass might be looking a bit better and you are mowing it the bulbs will have died down and be invisible anyway. You asked if they are seasonal which implies you haven't lived there long or you would know the answer. How about leaving them alone for a season to see how they turn out over a year?

As you can see here, elsewhere on Garden Web there are people who are very proud of their paper whites.

Yes I just bought the house in August so I am trying to clean up what I bought. The previous owners did not care too much about the looks of the yard. Parts of my yard have a nice mat of st. Augustine so I'm trying to get it to fill in.

But I will leave the paper whites and see what they do over the course of a year. I was just surprised when they starting popping up everywhere