Lawn Care Forum banner

How long to wait for spring dethatch in MN

5169 Views 7 Replies 5 Participants Last post by  Deere Jr
It's a late spring here in MN. My snow has just melted away. Much of the grass is still dormant, with spots of green here and there.

How long should I wait to do a heavy dethatch? I'll be dethatching with a front mounted rotary broom.
1 - 3 of 8 Posts
Oops. I should have said that.

The dethatching is part of a smoothing project. I'll be spreading 28 yards of sand in about an acre of lawn to help reduce the bumps. I want to dethatch first.
Pete1313 said:
Ridgerunner said:
spreading 28 yards of sand
By hand!?
You should wait until the turf has fully awoken and is actively growing. A third of a pound of N/M before de-thatching will help recovery.
Agreed. Wait for the turf to get going. That will be a few weeks yet for your area. Dethatch, clean everything up, mow as short as possible, add some N, sand, and then time your pre-m for just after.
Ridgerunner - LOL, no not by hand. That would suck. I'll be using a Turfo f12d for the spreading of sand.

Pete - Thanks for the tips. I wondered about the pre-m. I usually use a fertilizer + crabgrass control granular.
1 - 3 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.