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  • Home
  • About Us
  • General Lawn Care
  • Warm Season Lawns
  • Cool Season Lawns
  • Resources
    • USDA Hardiness Zone Finder
    • Fertilizer & Spreader Calculator
    • Lawn Area Calculator
    • Pre-Emergent Timing Tool
    • Soil Test Interpreter
    • Warm-Season Lawn Schedule
    • Cool-Season Lawn Schedule
    • US Lawn Zone Map
Picture of James Whitfield

James Whitfield

James Whitfield has been a homeowner for over 15 years and spent most of that time obsessing over his lawn. What started as frustration with patchy grass and wasted money on products that didn't work turned into years of research, testing, and hands-on learning. He's not a professional — he's a homeowner who figured it out the hard way, and writes to help others skip the trial and error he went through. James focuses on practical, research-backed advice that works for real homeowners with real lawns.
kentucky bluegrass lawn
Cool Season
GreenTurf Lab Team

Best Soil Test Kits for Home Lawns: Lab Mail-In vs. Test Strips vs. Digital Meters

By James Whitfield, Lawn Care Enthusiast & Homeowner Disclosure: This article contains affiliate links. If you purchase through these links, I may earn a small

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October 5, 2026 No Comments
bermuda grass lawn, st. augustine grass lawn
Warm Season
GreenTurf Lab Team

Lime Application on Warm Season Lawns: How Much, What Type, and When to Apply This Fall

If you have a warm season lawn and you’re thinking about lime, the most important thing to know upfront is this: you may not need

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October 5, 2026 No Comments
bermuda grass lawn, st. augustine grass lawn
General
GreenTurf Lab Team

Spring Lawn Care Checklist: Cool Season Grass Tasks in Order

If you have cool season grass — Kentucky bluegrass, tall fescue, fine fescue, or perennial ryegrass — this spring lawn care checklist for cool season

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October 5, 2026 No Comments
bermuda grass lawn, st. augustine grass lawn
Warm Season
GreenTurf Lab Team

Potassium for Warm Season Grass: What It Does and When Your Lawn Actually Needs It

By James Whitfield Potassium is a macronutrient — the “K” in NPK — that regulates critical internal functions in grass plants, including water retention, stress

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October 2, 2026 No Comments
kentucky bluegrass lawn
Cool Season
GreenTurf Lab Team

Spring Overseeding Cool Season Grass: When It Works and When to Wait for Fall

It’s March or April, you walk outside, and there are bare patches staring back at you. The instinct is immediate: throw down some seed and

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October 2, 2026 No Comments
green lawn grass
General
GreenTurf Lab Team

Lawn Scalping: When to Scalp Grass, When It Helps, and When It Causes Real Damage

What is lawn scalping? Lawn scalping is the practice of cutting grass significantly lower than its normal mowing height — typically to remove dead thatch

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October 2, 2026 No Comments

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