September often tempts you to squeeze in one more pasture rotation. With the calves gone, cows still need feed, and there’s still green under the seedheads. Keeping them in that paddock another week might save hay or put off using winter pasture.Across West Texas, warm-season grasses are running out of time to grow. Shorter days and cooler nights slow regrowth, even if it rains. Grass grazed now might not come back before frost.
Timing varies across the region. A High Plains pasture might stop growing weeks before a warmer spot farther south. Watch for active growth, soil moisture, night temperatures, and your typical first freeze instead of using September as a set deadline.
Your last rotation decides how much leaf, crown protection, and soil cover you’ll have through winter. Grazing too short can also slow down the plant’s growth in spring.
There’s no one-size-fits-all rule that says every pasture should end up at four inches. Buffalograss grows differently than sideoats grama, and bermudagrass isn’t the same as little bluestem. Soil, rainfall, grazing history, and plant health all matter too.
Instead of asking, “How short can cattle graze this pasture?” ask, “What needs to stay for this grass and soil to go into winter in good shape?“
If you walk through a West Texas pasture in August, the grass will usually show you what is really happening, even if it is not what you want to see. Maybe the old bluestem is thin near the water lot. Maybe broomweed has popped up in a pasture that looked good back in the spring. Maybe ragweed is filling in bare spots, or silverleaf nightshade keeps returning, no matter how many times you thought you had it under control. Most ranchers see these plants and immediately ask, “What do I need to spray?” That is a reasonable question, but it should not be the first one. A better question is, “Why is this weed showing up here?”
In June, a pasture might look good from the road, but it could still be hiding problems.
