Has to be a warm season grass if it dies back in the fall/winter..Rye grass thrives in the cooler months

He is a complete kook......stay clear of him ! :-) .......who knows, but in the southwest, people do something similar. Ryegrass is planted in the fall, its good thru the winter and early spring, and then allowed to die when the heat and lack of water sets in. The dead rye holds the ground and dust in place some what, and sometimes turf colorant is used for green color.

Forgot to mention this is in Southern TN. Figure some type of warm season grass but it is not Bermuda as many neighbors have that.

Could be Tall fescue, although technically a cool season grass, its characteristics are right inbetween cool and warm season grass

No I have tall fescue and have had TF since 1960

You sure it's whatever he seeded coming up and not crabgrass? He's obviously not applying pre-emergent since he's seeding, so the yard should be full of crabgrass during summer. If you cut it crabgrass looks halfway decent.

No he is seeding, not crabgrass although he does get some crabgrass. I was wondering since around here crabgrass is a problem, is he doing this to get all the crabgrass seeds to germinate over the years and eventually no more crabgrass seeds and then he will plant good grass? Think he has been doing this for over 6 years so far.

Well if that's what he's trying to do there's a much faster and easier method of accomplishing it - pre-emergent. Not to mention crabgrass produces even more seed every time it gets to maturity.

Another question - on crabgrass - I use pre-emergent which keeps the seeds from germinating- but how long do those seeds stay good or do the seeds die eventually after X years? Thinking after X years no pre-emergent needed?

That's a misconception - pre-emergent does not keep seed from germinating. The seed germinates and, as it emerges through the pre-emergent barrier, it absorbs the chemical which prevents further root development and the plant dies. Thus, pre-emergent not only kills weeds as they germinate, it also depletes the seed bank.

Really good information, never really knew that and nice to know eventually I may be crabgrass free, with some help from my neighbors.

Crabgrass is easy to deal with - even if a little pokes through quinclorac is very effective as a post-emergent. Sulfentrazone too I believe. The big one is bermuda - tough to remove from a cool season lawn once it gets in, and the seed is so tiny it blows far and wide. I apply pre-emergent more for bermuda than crabgrass.

I have a patch of Bermuda I'd like to get rid of, maybe I'll put a little extra pre-emergent on it, was going to do roundup.

Well the pre-emergent isn't going to help with existing Bermuda - you'll have to do Roundup, multiple times. But it will help with all the Bermuda seed flying around then landing and germinating on your lawn.

Maybe planting some type of garden?LOL I give up guessing

Eehh - maybe it simply keeps him busy (happy). KWIM? I'm a stay at home mom and retired, and probably do alot of yard work that I find 'therapeutic,' but my far busier neighbors probably think is useless. And I know if I'm out doing yard work, the kids don't ever bug me (I might put them to work) - its like a mini-vacation. Maybe it gets his wife off the rest of the 'honey do' list.

I know my husband would use that power machine he's using just for fun.

Well he aerated and planted seeds - here the grass is starting to grow - can anyone identify type of grass from the picture???

LOL. Those are weeds.

I asked him one time what he was planting and he said "what the farmers around here grow" ??? It's definitely from seeds.

pre-emergent does not keep seed from germinating. The seed germinates
and, as it emerges through the pre-emergent barrier, it absorbs the
chemical which prevents further root development and the plant dies.

does that mean using PE also prevents grass seed from growing? so i cant use PE and throw down grass seed at same time? yes i know. seed in fall.

does that mean using PE also prevents grass seed from growing? so i cant use PE and throw down grass seed at same time?

That's correct.

Mesotrione and tupersan are two herbicides that act as a short-lived pre-emergent and are safe to use when seeding fescue and/or bluegrass. Mesotrione is sold as Tenacity and you can also find it inside one of Scotts starter fertilizers.

His grass?? is filling in, driving me nuts to know what it is.

Well fall came and this year it looks like he planted Tall Fescue. My theory is he planted cheap grass/ground cover and let it grow along with weeds and then killed all every fall. Now that he has done that for years and has no more crabgrass or weeds - he planted some good stuff. Guess he doesn't know about pre emergent.

And I guess he doesn't know about all the weed seeds that blow in from other locations.