Q & A

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E. Vinje

Hi John –

You are correct that corn gluten meal is a great nitrogen fertilizer, containing about 9%N. However, you must be careful when using it in your vegetable garden. Corn gluten acts as a pre-emergent herbicide and is often spread over lawns to prevent weed seeds from germinating. But, it is not specific to weeds and will discourage most seeds from germinating — including garden seeds — if the timing of its application coincides with germination. One application will last 5-6 weeks so time your planting accordingly.

Note: Corn gluten does absolutely nothing to weeds that have already germinated and will not harm transplants/ seedlings that may be going into the garden.


Hope this helps!