Mustard in the Garden: How to Use the Ultimate Green Manure Correctly

White mustard is a popular green manure. It grows fast, suppresses weeds, and sanitizes the soil. However, before sowing it everywhere, you need to know if it suits your soil type and who its neighbors are.

Benefits of Mustard

• Soil Sanitizer: Inhibits the development of scab and late blight.
• Pest Control: Wireworms and white grubs can't stand it.
• Green Fertilizer: After mowing, it becomes a rich source of nitrogen and phosphorus.

Soil Requirements and Compatibility

Mustard thrives best in Loamy soils (Type 1) or Sandy Loams (Type 2). If you have heavy clay, it won't be as effective. Be sure to perform a soil sausage test to confirm your type before planting.

Best Neighbors (Good): Potatoes, Grapes, and fruit trees.

Main Taboo (Bad): Never plant mustard near Cabbage, radishes, or turnips. They share common enemies like the flea beetle.

AgroPlanner Tip: In our app, mustard has its own soil code. If you try to place it next to a plant requiring a fundamentally different soil type (like peaty or chalky), the Planner will alert you to the mismatch. The system also highlights "red" zones near cabbage — don't ignore these alerts!