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Brassica juncea
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- How to Sow Mustard Greens: Timing, Depth and Spacing
- Caring for Mustard Greens: Water, Feed and Keeping the Heat in Check
- When and How to Harvest Mustard Greens for Salad or Cooking
- Why Mustard Greens Bolt and How to Delay It
- Mustard Greens Pests and Problems: Flea Beetles and What Else to Watch
- Mustard Greens Growing Calendar: What to Do Through the Year
Pests and diseases (9)
Problems recorded for this plant, most serious first.
Powdery Mildew
Disease
White patches appear scattered on the upper leaf surface at first, then the whole leaf is coated in a white powder. Leaves later yellow, brown and die back, and reduced photosynthesis cuts growth and yield.
Damping-off
Disease
The stem pinches in at soil level, turning water-soaked to brown and thin, and the seedling topples over. Infection before emergence makes the stand uneven with missing plants.
Root-knot Nematode
Pest
The plant wilts in the daytime and does not recover with feeding or watering. Pull it up and the roots carry beaded chains of galls of varying size with few fine roots.
Downy Mildew
Disease
Pale yellow to yellow-brown angular lesions form on the upper leaf surface with a gray-purple mold in the matching spot underneath. Lesions merge, the leaves die back and the plant declines early.
