Mustard Greens (Sawi Mustard)
Brassica juncea
Malay names: Sawi Mustard

Peppery leafy green; fast in hydro with mild shade; good for continuous cuts.
๐ Light & Temperature
Light: Bright light to partial sun
Temperature: 20โ32ยฐC
๐ชด Container & Medium
Container: NFT/DWC; 2 inch net pots; 20โ25 cm spacing; shade in hottest hours.
Medium / Solution: Medium: clay pebbles/rockwool; Solution: pH 5.8โ6.5, EC 1.5โ2.2 mS/cm
๐ง Watering / Solution Maintenance
Schedule: Top-up daily; change 7โ10 days
Top-up: Keep solution oxygenated
pH 5.8โ6.5; EC 1.5โ2.2 mS/cm
๐งช Nutrients
Type: Leafy nutrient
Frequency: Check EC twice weekly; change 7โ10 days
Dosage/EC: EC 1.5โ2.2 mS/cm; pH 5.8โ6.5
๐ Harvest
Start: 4โ6 weeks from sowing
Seasonality: Year-round
Duration: 2โ4 week harvest window
Harvest Indicators: Leaves 15โ25 cm; tender yet peppery
Tips: Harvest outer leaves; avoid bolting in heat with shade and airflow.
๐ฑ Propagation
Seeds; thin to one per site.
๐ Pests & Diseases
- Caterpillars/aphids: Netting; neem 1%; harvest to keep canopy open.
๐ฆ๏ธ Seasonal Notes (Malaysia)
Provide shade and airflow during monsoon to limit disease.
๐ System Notes
Space 20โ25 cm; avoid overcrowding.
๐ก Extra Care Tips
- Stagger sowing for continuous supply
- Harvest young for milder flavor
Note
EC and pH are guidelinesโadjust to plant response and your water source. In monsoon humidity, increase airflow and reduce overcrowding to limit disease.