What are these green weeds on my grass?

Question

One month ago I used weed killer and waited two weeks to overseed and after seeing all weeds dead I overseed and used starter fertilizer and now I have some green weeds on my grass. What are they? what did I do wrong? Right side have no problems. I haven't seen new grass anywhere though, maybe they dried because of sun. Before overseed I did rake my grass and got rid of dead grass. I kept soil moist all the time. Temp. was around 70-80 range. Kansas City, Missouri.

I don't know the last time it was fertilized.

Before

After

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Regular mowing at lower level should solve the problem (possibly without watering after the mowing). — Giacomo Catenazzi, Jun 14 '18 at 07:54
I mow twice a week with a high level and yes I do water after mowing :) Maybe these two causing the problem. — Sami, Jun 14 '18 at 16:29

score 3 · Accepted Answer · answered Jun 13 '18 at 20:04

3

That looks like either crabgrass or quackgrass.

What overseed mix did you use? It seems likely this is a seed from that mix.

answered Jun 13 '18 at 20:04

greggles

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I used ScottsTurf Builder Grass Seed Sun and Shade Mix. I haven't seen any new grass growing and these weeds only grow only one side but seed two sides. https://www.scotts.com/en-us/products/grass-seed/scotts-turf-builder-grass-seed-sun-shade-mix – Sami Jun 13 '18 at 21:35

What are these green weeds on my grass?

1 Answers1