QUESTION: Our lawn has looked great all summer – until now! The grass is turning brown in patches, even though I water it regularly. What’s wrong?
For lawn-lovers, the middle of summer often brings disappointment to those who carefully cultivate that carpet of green. I’ve written about the problem here before, but here at mid-summer, it bears repeating.
In Middle Tennessee (Zone 7A, where The Garden Bench calls home), fescue seems to be the preferred type of lawn. It’s a cool-season grass, and it has a tendency to go dormant and turn brown when the weather is hot and dry. It often perks up again when the weather gets cooler.
But lawns can also suffer from brown patch, a fungal disease that can affect fescue lawns. It starts with small brown patches, or a ring of brown grass that gets larger over time. The plant may be green at soil level, but individual blades of grass will be brown.
Before you resort to a fungicide, it’s a good idea to know exactly what the problem might be. I’m not a lawn expert, so when I wrote about this before, I pointed to the popular garden guru and author Walter Reeves’s web site, which provides quite a bit of information about lawn fungus, blights and molds. Here it is again.
In general, lawns do well with about an inch of water a week. They don’t need to be watered every day, but water deeply about once a week if it doesn’t rain. It’s also a good idea to cut the grass higher; when grass is cut too short, it leaves the lawn vulnerable to more weeds and diseases.