Corn Gluten Meal as an Organic Herbicide Solution | February 19, 2024

Understanding How Cornmeal Works

Cornmeal, particularly corn gluten meal (CGM), is a byproduct of milling corn. It contains proteins that inhibit root formation in seedlings shortly after germination. When weed seeds germinate, they begin to grow; however, if they cannot establish roots, they will not survive. This pre-emergent herbicidal property makes CGM an effective organic option for controlling weed growth in gardens.

It’s important to note that CGM does not distinguish between weed seeds and desirable plant seeds. Therefore, it should only be used in areas where you do not intend to sow seeds directly into the ground shortly after application.

Why Use Cornmeal in Your Garden?

• Organic Gardening: CGM offers a natural alternative to chemical herbicides, aligning with organic gardening practices.
• Soil Health: Unlike some chemical treatments, cornmeal does not harm beneficial soil organisms, maintaining a healthy soil ecosystem.
• Dual Purpose: In addition to inhibiting weed growth, CGM also acts as a nitrogen-rich fertilizer, supporting the growth of established plants.

How to Apply Cornmeal in Your Garden

Materials Needed:

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