I'm in Cary, NC. I know a place east of Raleigh (30 miles approx) that sells all kinds of turf type grass seeds (midnight, star KBG, etc) to local golf courses in the area. I have an account with them, if you want I can sell you some seed? I don't know if the carry Fescue, but they sure have tons of Bluegrass and Perennial Ryegrass seeds. Either of them will complement your Fescue lawn very well. Let me know. And yeah, I agree with quirky, wait until late summer (mid August) to seed the areas. You can seed during the summer, but it requires ALOT more dedication to keep those seedlings alive. The NC Fairgrouns are comprised of a Perennial Ryegrass blend that they overseed year round with decent success. Go by when you can and take a look for yourself. Beautiful dark green, fine bladed turf, just not perfect because of the heavy use/traffic from weekly and daily customers.

With reference to everyone says to plant in fall does not apply to you because they are talking about cool season grasses. You do not live in cool season grass country, you live in he!! where warm season grass grow like Bermuda. Now with that said you need to wait until October to seed Rye grass which is a cool season grass. Then next spring you can seed with Bermuda grass but you had better have an irrigation system of a very small area that you can manage with a hose sprinkler.

Patience. Give the seedlings a couple weeks to grow, then you can step out and fix the bare spots. The new grass will spread and thicken (tillering) as you mow it this fall. There will be a big difference at 60 days than what you see now. Any spots smaller than the circle of a coffee can, I wouldn't worry about.

For those of you who are unfamiliar, Neil Sperry is a Texas based garden guru. He has a radio show and is syndicated in many of the big news papers in Texas. Neil Sperry is the bane of my existence. Whatever he says, I do the opposite. I followed him from about 1992 to 2002 and realized my grass looked worse every year. Then I switched to organic and learned a lot about lawn care on this and other forums. He, apparently gets all his information from sponsors selling products. I could make a living following him around to fix the mistakes he has people making. Sunlight - Neil says, St. Augustine needs 4 hours of sunlight daily just to survive, and 6 hours of hot, direct sunlight if you hope for it to grow vigorously. Again, my front lawn in SA had zero hours of sunlight per day for the duration of 25 years. It was under the canopy of several very large live oak trees. For 10 years it deteriorated, and for 15 years under organic fertilizer, it looked great. Here is a picture of my grass grown in the most dense shade in that yard. Looking straight down reveals all the flaws in the turf. What you can see is the grass was growing outward and not upright. When it is in full sun, it grows more upright driven that way by the sheer amount of grass. Here is the same yard from an angle. The house faced north and this is the front yard. There is a huge tree to the left of the walkway and two large trees in the bed to the right. This yard got no direct sunlight at all. You can see grass invading between the bricks and over the concrete. It is not doing poorly. Neil Sperry would say this is impossible. Here is a picture of my current house - back yard, south facing slope in full sun. The grass is dense. You can see the grass needed fertilizer, but besides that...in the foreground is weeds mowed at the mower's lowest setting. You can see the St Augustine runners expanding their territory into the weeds at a rate of about 15 feet per year. You can see the hose and a long handled yard tool sort of buried in the grass. The only reason you can see them is the grass is too dense for the hose and tool to sink farther down. You can tell the depth of the grass on my dog's legs. They are buried to the hock. Drought - Neil says, St. Augustine needs more water than most of our other lawngrasses (fescue excepted). If you let it get too dry, and especially if you do so repeatedly, St. Augustine will be weak, and it may even die away. This is about the worst thing you can say about St Augustine. The main reason is it is bordering on untrue. It "may" die away. St Augustine is not bermuda. Bermuda will come back from no water for a year. Here in Bandera I had a side yard where the St Aug was golden brown. It had been that way for months before I bought the house. I figured it was dead and neglected it for another year, which was a drought year. But when I watered it, the golden runners came to life. It was solid St Augustine. Had this grass been in full sun, it "may" have died away, but for whatever reasons, it came back after getting no irrigation from June to March. Here is a picture from my previous house in George West, TX. The grass is 32 inches high and had not been watered for many months. You can see the top of my dog's tail and her ears (different dog). When you mow St Augustine high, it needs less water. If you don't mow it at all, it needs no water to thrive. Please do not let the so called drought intolerance deter you from St Augustine. Fertilizer - Neil says, in part, ... Most clay soils have excessive amounts of phosphorus (middle number of the analysis), so soil tests usually suggest a high-quality, all-nitrogen fertilizer be added. What the hell? Who has clay in Texas??? Okay, now the OP describes his location as between San Antonio and Del Rio. As it turns out, there is a pocket of clay soil in D'Hanis, TX, along that route, so this might actually pertain, TO HIM, but almost noplace else. Clay soil is a red herring. Get the soil tested if you absolutely cannot grow anything. Otherwise, go with organic fertilizer and see the miracle unfold. Disease - Neil says, Gray leaf spot is a fungal disease that shows up in mid-summer into early fall. You’ll see diamond-shaped, gray-brown lesions on the midribs of the blades and occasionally on the runners themselves. This disease is most prevalent following applications of nitrogen. In fact, the additional symptoms of gray leaf spot are yellowed leaves that look like they need more nitrogen. I get gray leaf spot any time of year. My lawn woke up with it this year in early spring. Caused by too much nitrogen? I get it after months and months of no nitrogen at all. Like now, for instance. The lawns on his St Augustine Diagnostics page are all mowed way too short. Between that and his comments on drought scaring people into watering too much, it's no wonder people have problems with St Aug.