See if that pic loads.... Yes on irrigation both installation and use. I am very happy that you responded TW, your other posts have all been extremely informative. Thanks for the assist there Andy. :-) The grass will be the rounded off triangle shape, approx 1300sqft, the three circles that intersect and create the rounded corners will be 12ft sprinkler heads and the gaps on the straight edges will be filled in with larger than drawn 10ft half circle spray heads. The circle that is not symetrical with the rest of the lawn will be the tipu, the circle indicates the eventual possible root bulge zone that I wanted to keep concrete away from, same for the two outside the grass area, those will be chinese pistache. Hope that makes sense and that the picture is clear enough, just got home from a 12hr nightshift. :-)

It is okay to sod either one now. In fact it is usually okay to sod either one any day of the year in Austin. Both grasses have their drawbacks with regard to your wants. Watering If you want either one to look good, you will need to water monthly now and gradually more frequently until July when you will be watering weekly. With St Augustine, if you miss a few weeks, you will have dead grass. Bermuda will go several months/years with no water and just sit dormant. But if you want it green, you need to water. Mowing Bermuda should be mowed low every few days to look its best. It becomes more dense when mowed very low. St Augustine does best when mowed very high, no more than every week. In the summer heat you might let it go a month or longer without mowing to save the grass and water. Tall (and really tall) St Aug can withstand almost any drought. Fertilizer If you want the bermuda to be dense and dark green, it needs to be fertilized every month in the growing season. St Aug can get away with fertilizer on Memorial Day, Labor Day, and Thanksgiving. I use organic fertilizer and find I get much better results by fertilizing monthly with corn gluten meal. I don't think there is a lower limit as to the amount of organic fertilizer that would make bermuda happy in the summer. St Aug probably will take the least amount of maintenance as long as that maintenance is watering an inch per month now and inch per week in the heat.

I just re-sodded my yard with 419. I put down a starter fertilizer almost immediately after rolling. I'll be applying Nitrogen-heavy fertilizer as time goes to really inspire growth. I'm watering the heck out of it, especially since it's hot. My irrigation system is set to 40 minutes at 6:30a, 12:30p and 5:30p. I have plenty of chemicals to use but I won't until I really need to. [I'd like to get more advice on this myself] I'll also use a reel mower but I'm going to wait for a couple of weeks or so--not for growth itself but to keep traffic off the turf. Please, anyone, correct me if what I've said above is wrong. This is advice I've received and is my plan as of today but I don't want to lead anyone the wrong way if these are not "best practice". Thanks.

I had a problem with spotted spurge several weeks ago, so I applied some 2-4D to the lawn using my garden hose. Although I was careful not to over-apply, it's tricky to figure out just how much is being applied through those bottles that attach to a hose. The spotted spurge has all but disappeared, but now I am faced with a new issue: the lawn just doesn't seem healthy, and in some spots it seems either dormant or dead. OK I know what the problem is, and I know where Round Rock TX is just north of Austin. I have relatives just to the West of you in Marble Falls. I also know a thing or two about the Bible and Bermuda grass. It has been a early and hot spring in TX, especially from Dallas and points south. In your area it has also been dry and hot right? What is going on is your Bermuda Grass is stunned from 2,4-D application in too warm of weather. It also sounds like you might of applied too much using a hose end sprayer which compounded your problem. Post-emergence herbicides like 2,4-D should not be used when daytime temps hit 85+ degrees or else it will burn the grass and/or even make it go dormant. If extreme temps above 90 and over application you can do some real damage to it. Fear not my friend. Ease up on the fertilizer for a while and keep it watered. It will come back. Is it Tan or straw colored? Or is it dark like gray or charcoal colored? Tan/Straw colored is stunned dormant grass. Dark and crunchy is dead. Even if it is dead the surrounding grass will fill it back in with proper care. Good Luck TW