Any of those should be fine. KBG is best in full sun, and TTTF is drought tolerant. The Ryegrass in the Lesco or JG is there to add some durability, quick germination, and some more diversity. It shouldn't hurt, but isn't necessary either.

 

Do you have irrigation?If not go with a tall fescue

 

My TTTF got obliterated in full sun, especially with town watering restrictions (MetroWest), so I threw down 365SS KBG in late August and it’s come in really well. I have irrigation but could not water enough to keep the TTTF going through the summer months.

My TTTF in the back yard (Rhizing Moon) thrived because it has lots of shade and never got to the higher temps that my front yard did. I have high hopes for 365SS next summer, but time will tell. I would encourage you to stay away from TTTF if you’re getting full sun in the summer months unless you can throw gobs of water at it each week.

 

Yes I have irrigation but we end up getting a water ban every summer, so I can’t rely on beingrg able to water all summer.

 

Also, I forgot to mention hydretain. It's great stuff for keeping the lawn hydrated in the summer months.

 

Interesting - I thought tttf was supposed to do better in full sun and drought conditions than kbg does
I haven’t heard of the365SS before.

 

Interesting - I thought tttf was supposed to do better in full sun and drought conditions than kbg does
I haven’t heard of the365SS before.

How old was your lawn? I think any first year lawn will struggle in high temps simply because the roots aren't deep enough yet. If your lawn made it through the last few summers and didn't this year, it might not have been water that killed it.

My mostly Falcon and Barvado TTTF lawn struggled the first summer, but it was green and mad at the ground all summer this year. All I did was some 7-0-0 and K and micronutrient foliar apps (two I think) the whole summer, and it got over 100 regularly....full sun. Watered once a week....but heavily.

One thing that can help your new lawn survive summer heat is doing what golf courses do....use your irrigation for a couple minutes at the hottest part of the day to cool it down. It's like dunking your head in cold water on a really hot day after mowing the lawn, but for the grass.

Another thing is a liquid aeration product to loosen the soil and really help water get down in there. Also helps roots grow in compacted soil. Humic products FTW.

Are you sure the problem was water? Thatch problems, insects/grubs, disease, too much fert.....all of these could be possible culprits.