I’ve been clearing out the yard of a house I just moved into. I’m not sure what this plant is, I found it in a planter off to the side. I’m located in North Texas.
That’s asparagus. Looks healthy! It’ll die back in winter, so when that happens, cut the dead parts instead of pulling them out. You’ll get fresh asparagus in spring!
Oh, and since you’re in North Texas, you might want to add some straw over it in winter as insulation. It’s optional, but some people do it just to be safe. Asparagus can handle cold well, but a little extra care won’t hurt.
Asparagus doesn’t really care about the cold. We get -25°C without snow up here, and no one covers it.
Just a heads up, you should only harvest asparagus for a couple of weeks each year. Make sure to leave enough fronds so the plant can store energy for the rest of the year. Otherwise, it won’t last long.
You’ve got an asparagus bed! Once the ferns die back, cut them down and enjoy the spears in spring. Treat the plants well—they take a few years to establish fully. If you don’t want them, you can dig up the roots and sell them on Marketplace. I’m in the Denton area, I’d be happy to take them off your hands!
Yep, that’s asparagus. I’ve had three beds for about 10 years now. They come back every year without fail. Best long-term crop investment ever!
That’s asparagus! Harvest it in the spring when it’s around 5-6 inches tall.
It’s asparagus, but it’s gone to seed.
That’s not asparagus, sorry.
After looking at some more pictures, I think you’re right. It might actually be dog fennel.
Those tiny black seeds are from asparagus beetle larvae, which have probably eaten most of your plant’s leaves.
In Texas, we’ve got something similar that’s called dog fennel. It grows wild and is basically a weed.
My meadow in North Carolina is overrun with dog fennel at this point.
Asparagus! Let it grow wild until February, then cut it back for a tasty spring harvest.
Looks like asparagus to me.
Definitely asparagus 
A big patch of asparagus!
Could be asparagus or dill.