Troubleshooting
Mustard Greens 'Southern Giant Curled' problems — and how to fix them
Mustard Greens 'Southern Giant Curled' (Brassica juncea var. crispifolia 'Southern Giant Curled') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Flea beetles
Shot-hole damage on leaves, worst on young plants. Cover with insect mesh from sowing and keep plants vigorous; clear nearby brassica weeds that harbour them.
Bolting in heat
Long warm days push plants to flower and turn leaves bitter. This heirloom is fairly slow to bolt, but sow in spring and autumn and harvest before midsummer heat.
Slugs and snails
They graze the broad curled leaves, especially in damp weather. Hand-pick at dusk, remove debris, and use barriers or traps around seedlings.
Downy mildew
Yellow leaf patches with greyish growth beneath in cool, damp, crowded conditions. Improve spacing and airflow, water at the base, and remove badly affected leaves.
Prevent mustard greens 'southern giant curled' problems before they start
Most mustard greens 'southern giant curled' issues are care-mismatch, not bad luck. Dial in the basics:
- What's wrong with my plant? — the diagnosis apps compared
- Mustard Greens 'Southern Giant Curled' watering schedule
- Mustard Greens 'Southern Giant Curled' light requirements
- Best soil mix for mustard greens 'southern giant curled'
- Mustard Greens 'Southern Giant Curled' temperature & humidity
- Full mustard greens 'southern giant curled' care guide
Looking for mustard greens 'southern giant curled' in general rather than its problems? Read the full mustard greens 'southern giant curled' care guide — light, water, soil and feeding.
Mustard Greens 'Southern Giant Curled' problems — FAQ
Why is my mustard greens 'southern giant curled' flea beetles?
Shot-hole damage on leaves, worst on young plants. Cover with insect mesh from sowing and keep plants vigorous; clear nearby brassica weeds that harbour them.
Why is my mustard greens 'southern giant curled' bolting in heat?
Long warm days push plants to flower and turn leaves bitter. This heirloom is fairly slow to bolt, but sow in spring and autumn and harvest before midsummer heat.
Why is my mustard greens 'southern giant curled' slugs and snails?
They graze the broad curled leaves, especially in damp weather. Hand-pick at dusk, remove debris, and use barriers or traps around seedlings.
Why is my mustard greens 'southern giant curled' downy mildew?
Yellow leaf patches with greyish growth beneath in cool, damp, crowded conditions. Improve spacing and airflow, water at the base, and remove badly affected leaves.