What are these weeds on my new st augustine Flortam lawn?
It barely was installed around 1 month ago.
What are these?
Knowing where you live would help to rule out some weeds.
First one looks like it might be Johnson grass.
The second one, is it a vine of some kind? If so you need to get after it. You might be able to kill the entire vine by putting some RoundUp in a small vase. Then still the end of the vine into the vase so it can soak up the RoundUp. Careful not to let the vase tip over.