Brown Patch in Lawns: How to Tell It From Dog Spots and Drought
Brown patch often shows up as tan rings or smoke-ring patches in humid weather. The fix starts with mowing, watering, and nitrogen timing before fungicide.
8 min read
Lawn Problems
Start with the symptom, work back to the cause. Most lawn problems are cultural, not a mystery disease.
4 guides
Start with the numbers
Work out quantities and costs before you read further.
Fertilizer Calculator
Turf guidance is written in pounds of nitrogen per 1,000 sq ft, but fertilizer is sold as a percentage analysis. This converts between them for any bag you have, enter the three numbers on the front.
OpenIrrigation Calculator
Find out how much water your lawn or garden actually needs each week, in both inches and gallons, and how to split it across the week for your soil type.
OpenGrass Seed Calculator
Seeding rates differ by species by a factor of twenty, bermudagrass wants 1 lb per 1,000 sq ft, perennial ryegrass wants 8. Pick your grass and whether you're starting fresh or overseeding.
OpenWhat's wrong with your lawn?
Start with what you can see. Most lawn problems are cultural, water, mowing height, or compaction, long before they are disease or insects, so it pays to confirm the cause before buying a treatment.
Lawn Problems guides
How to Fix Dog Urine Spots on Your Lawn
Dog urine can burn grass because of concentrated nitrogen and salts. Learn what the pattern means, how to repair spots, and which prevention myths to skip.
8 min read
Moss in Your Lawn Means the Grass Is Losing
Lawn moss grows where turf is too weak to compete. Learn how to find the cause, remove moss, rebuild grass, and avoid repeat patches.
7 min read
Yellow Grass in Your Lawn: What’s Wrong and How to Fix It
Yellow grass can be a quick fix or a sign of bigger trouble. Learn how to spot the difference, what to do first, and which mistakes to avoid.
8 min read