THE LAWN NERD

Put the fertilizer bag down

Every fall the big box stores stack "winterizer" bags right by the door. And every fall a lot of NW Austin lawns get fed at exactly the wrong moment.

Here's what's actually happening under your feet. Nights are sliding into the 60s, soil temps are dropping, and St. Augustine and zoysia are switching gears. They're done pushing blades. Now they're storing energy in the roots to carry them through winter and fuel green-up next spring. Hit them with nitrogen now and you force soft new growth the plant can't support, right before the first cold snap. Texas A&M AgriLife is pretty blunt about this one: fall over-feeding sets lawns up for winter kill and a rough spring.

So here's how we time it up here. St. Augustine and zoysia got their last nitrogen back in the summer. Bermuda's window closed in mid-September. And October 15 is the hard stop for anything, since first frost in Travis County averages right around the end of November.

What about winterizer? It's mostly potassium, and it only helps if your soil is actually short on potassium. Plenty of yards up here aren't. A soil test costs less than the bag and tells you for sure, and fall is a great time to pull one.

Two things worth doing instead. First, turn your sprinkler controller down. July runtimes are way too much for October, so start by cutting every zone about a third and watch how the grass holds. Second, keep mowing high. Three inches on St. Augustine, a little more in shade. Scalping a lawn on the way into winter is how you end up with bare spots in April.

THE NEIGHBOR

Around the neighborhood

  • Native plant sale up the road. The Williamson County chapter of the Native Plant Society of Texas is running its fall sale. Order online through noon on Friday, Sept 25, or shop in person Saturday, Oct 3, from 11 to 2 at Southwest Williamson County Regional Park in Leander. Texas natives only, and bring your old pots, they'll get them back to the growers. Details at npsotwilco.org.

  • Your watering rules depend on who sends the bill. City of Austin customers are still on Conservation Stage rules, one day a week for automatic sprinklers. But a lot of homes in our ZIPs get water from a MUD or another utility with its own schedule (Brushy Creek and Wells Branch among them). Check the name on your bill before you reset the controller.

  • Hauling off fall cutbacks? If you're on City of Austin trash service, look up your brush collection week with Austin Resource Recovery's My Schedule tool at austintexas.gov. A lot easier than stuffing the trash can for a month.

THE FIXER

The grass under the oaks keeps getting thinner

You've watered it more. You've fed it more. It still looks worse every year.

Here's why. St. Augustine is the most shade-tolerant warm-season grass we've got, but it still needs a few hours of real sun a day. Your live oaks didn't stop growing, and every year the canopy closes in a little more. The grass isn't failing. It's being outcompeted for light, and for water too, since those oak roots are drinking from the same soil.

What actually helps, in order:

Raise the mower in the shady spots. Up to four inches. More leaf means more surface to catch whatever light gets through.

Water that zone less, not more. Shade dries out slowly, and a soggy shady lawn is a weak one.

Let some light in. A certified arborist can raise and thin the canopy, and late fall into winter is the right season to prune oaks around here anyway.

Or stop fighting it. Some spots just aren't lawn anymore. A clean mulched bed, or a native shade groundcover like cedar sedge or horseherb, will look better than struggling grass. Plant it this fall and it'll be settled in by summer.

THE SCOUT

One day, one very full trailer

Some yards need a trim. This one up in 78750 needed a reset.

Two of us showed up at 8:30 in the morning and didn't leave until four. Beds cut back to where they belong, months of growth cleared out, the whole property brought back to a baseline you can actually keep. We filled the trailer and the truck bed and hauled everything away.

That's what a lot of yards up here need right now. Not just a mow. A reset.

And the best part? This one moves to regular monthly care this fall. Getting a yard back is the hard part. Keeping it is easy.

THE DEAL

The best planting month of the year is almost here

Here's the timing that matters: October is the best month to plant in Central Texas. Warm soil, cool air, and a whole winter for roots to settle in before next summer shows up.

If there's a bed you've been meaning to redo, or bare dirt that needs sod, this is the window. Sod needs a few warm weeks to root before it goes dormant, so we're booking sod installs through about mid-October. Bed refreshes and new plantings run into November.

Give us a call at (512) 387-6069 and we'll come take a look.