Lawn Maintenance
Q.

Weed and feed on newly sown grass seed

Zone Zone 4B | stevel2341 added on April 26, 2015 | Answered

If I spread weed 'n feed fertilizer on patches in my lawn where I have spread grass seed, will the "weed" portion of the fertilizer keep my grass seed from germinating? If so, how long after the seeds germinate can I safely use my fertilizer?

A.
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shelley
Certified GKH Gardening Expert
Answered on April 26, 2015

You are correct in that weed & feed might prevent seed germination. It is recommended to wait until your new grass is well established and you have mowed it a minimum of 4 times (usually 6 to 8 weeks) before applying a weed and feed fertilizer.

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