Dog urine contains 200-500mg per litre of nitrogen, which scorches grass within 12 hours. Perennial ryegrass and tall fescue recover fastest from pet damage, regrowing from crowns in 10-14 days. Overseeding bare patches at 35g per square metre in April or September restores coverage within 4-6 weeks. Watering urine spots within 8 hours dilutes nitrogen below the burn threshold. A dog-proof lawn costs nothing extra beyond standard seed and a consistent repair routine.
Key takeaways
- Dog urine burns grass because it delivers 200-500mg/L nitrogen in a concentrated spot
- Watering urine patches within 8 hours prevents scorch marks forming
- Perennial ryegrass recovers from damage in 10-14 days, faster than any other UK lawn grass
- Overseed bare patches at 35g per square metre in April or September for best results
- A designated toilet area saves 80% of your lawn from urine damage
- Artificial turf costs £15-£40 per square metre installed but needs weekly disinfecting
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Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.
