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The best time to put grass seeds down is in the fall. This gives the seeds time to mature before the stresses of summer like heat, traffic, mowing and diseases.he best time to put grass seeds down is in the fall. This gives the seeds time to mature before the stresses of summer like heat, traffic, mowing and diseases.
No. The pre-emergent will also stop desired grass from growing also. It is generally better to wait until the fall to plant new grass seed after a pre-emergent application has been put down. However, there are some special situations that we can help you with. Please call our office to discuss your situation.