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Organic Gardening

Corn Gluten Meal after seeding

21 years ago

I plan on dormant seeding my lawn this winter. I'll be using Tupersan to control crabgrass initially, since it won't inhibit germination. However, Tupersan only last about a month, and I'd like to use CGM to control crabgrass for the rest of the summer, since, as I understand it, crabgrass will germinate all summer long.

How long do I need to let the overseeded areas grow before I apply CGM? Also, how long do I need to wait after my last application of CGM before I can plant seed (in case I need to patch any areas in the fall)?

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Comment (1)

subywu
21 years ago
As long as germination has taken place, CGM application is fine. When dormant seeding, you should see your seed germinate in March. You do not have to apply Tupersan until around the time Forsythias bloom. CGM can go down 4-6 weeks after that. Your seedlings should have been mowed several times by that time. Hope for a summer unlike the last one where hot summer swelts hit hard and early--hard for young seedlings to survive that.
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