Howdy neighbor.

From a post last year:

"...looking at the picture - that long stalk in the middle also appears to be bittercress. Relatively easy to pull if you don't feel like spraying too much. Just be careful handling the refuse. While weeding the "area that's still trying to grow from a late seeding attempt last fall" (i.e. - thin lawn with plenty of room for weeds), I was trying to pull all the bittercress. Every time I bent over to pull one, I'd notice flakes falling from my hand holding the already pulled weeds. Most likely, these were seeds. I guess I just helped nature "spread the wealth" a little - hopefully I don't pay for it come the fall. So what I'm saying is if you pull any bittercress, bring a bag or other container with you."

The purple flower I believe is purple nettle.

We had a cold winter - I'm sure it went dormant - fescue / kbg can stay green in winter and be dormant - most likely b/c of the fertilizer you gave it. It's the "mow only" lawns that usually turn a little brown during winter.

I'm suprised your bittercress is that mature already - mine is just coming up, but it could be a matter of sunlight - but like I mentioned above - it's easy to pull, just be careful if the seed pods are already showing - one "brush" against your hand, and they explode.

Many weed products require multiple applications - if it's been 7-10 days since you sprayed - hit it again. We're supposed to get rain Saturday, so try to spray today or tomorrow if you can.

--Gags