Mustard is a that performs best in temperatures between 60°F and 70°F (15°C to 21°C) . How to Grow Mustard Seeds | The Seed Collection
| Symptom | Probable Cause | Remedy | |---------|----------------|--------| | Patchy emergence | Crusted soil; deep planting; dry seed zone | Roll after light rain; adjust drill depth; wait for soil moisture | | Purple cotyledons | Phosphorus deficiency (cold soil) | Banded starter P; wait for soil warming | | "Damping off" | Rhizoctonia or Pythium | Seed treatment (metalaxyl + fludioxonil); avoid over-irrigation | | Poor seed set | Frost during flowering; heat; lack of pollinators | Plant later; use B. juncea for heat; introduce hives (2 per ha) | | Shattered pods pre-harvest | Black mustard genetics; delayed harvest | Use shatter-resistant varieties (e.g., 'AAC Brown') | mustard seed planting