Should you overseed your lawn this spring?
April 07, 2016, 12:19:55 PM EDT
A common question we receive in the spring is in regards to overseeding your lawn. If you live in an area with warm season grasses, like Centipede or Bermuda grass, reseeding is not a very common practice and it does not work all that well. For those who live in areas where cool-season grasses like bluegrass or turf-type tall fescue grow, seeding can be a successful and a necessary part of caring for your lawn.
The best time to overseed an existing lawn is late summer until early fall. If you did not have a chance to do so last year, it might be something you want to take care of this spring.
You can overseed in the spring, but here are 4 important aspects that you must consider:
Be conscious of the season for crabgrass preventers - If you seed in spring, you cannot apply most standard crabgrass preventers. These materials keep crabgrass seeds from germinating, as well as the new seeds. In the past if crabgrass has been a problem in your lawn, it would be advisable to wait until the fall to start overseeding. For most crabgrass materials, there is a 16 week waiting period between seeding and applying a crabgrass preventer.
Be conscious of the season for broadleaf weed control – Broadleaf weed control is the same as crabgrass preventers, except the waiting time is less. If a broadleaf weed control is applied to an area, the standard wait time before seeding is 3 to 4 weeks. Once the new grass has germinated and become established, it has to be mowed two or three times before any weeds can be sprayed.
Aerate before broadcasting seed – One of the best methods to ensue good germination is to aerate the lawn first before broadcasting seed across the area. Broadcasting seed across an established lawn will result in little to no germination.
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