Lawn Maintenance
Q.

Over fertilize lawn

Zone 381111 | Anonymous added on July 23, 2018 | Answered

Hi,I over fertilize causing my grass to turn brown.What do I do ?

A.
A.Answers to this queston: Add Answer
MichiganDot
Answered on July 23, 2018

High nitrogen levels can burn plant roots. Your best bet is to water the lawn heavily and get the nitrogen to move through the soil. It is impossible to say whether the grass will recover. This fall, do a soil test. Potassium and phosphorus move very slowly through the soil and can build up to toxic levels. In addition, many US soils have sufficient amounts of phosphorus naturally and phosphorus is a big pollutant of waterways. On the market now are lawn fertilizers with only nitrogen and potassium (potash) as well as nitrogen only fertilizer. Soil test results will guide you regarding the lawns fertilizer needs.

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