Troubleshooting
Turnip 'Oasis' problems — and how to fix them
Turnip 'Oasis' (Brassica rapa var. rapa 'Oasis') 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 beetle
Tiny holes peppering young leaves slow the early growth needed for sweet, tender roots; protect seedlings with fine mesh and keep them watered.
Loss of crispness in heat
Warm weather and water stress turn the sweet flesh sharp and fibrous; grow in cool spring or autumn and harvest young for raw eating.
Clubroot
Brassica soil disease distorting roots; rotate brassicas on a 3-4 year cycle, improve drainage and lime acid soil.
Splitting if over-mature
Fast-growing roots crack if left in the ground too long; pick at 6-8 cm and sow successionally rather than holding the crop.
Prevent turnip 'oasis' problems before they start
Most turnip 'oasis' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for turnip 'oasis' in general rather than its problems? Read the full turnip 'oasis' care guide — light, water, soil and feeding.
Turnip 'Oasis' problems — FAQ
Why is my turnip 'oasis' flea beetle?
Tiny holes peppering young leaves slow the early growth needed for sweet, tender roots; protect seedlings with fine mesh and keep them watered.
Why is my turnip 'oasis' loss of crispness in heat?
Warm weather and water stress turn the sweet flesh sharp and fibrous; grow in cool spring or autumn and harvest young for raw eating.
Why is my turnip 'oasis' clubroot?
Brassica soil disease distorting roots; rotate brassicas on a 3-4 year cycle, improve drainage and lime acid soil.
Why is my turnip 'oasis' splitting if over-mature?
Fast-growing roots crack if left in the ground too long; pick at 6-8 cm and sow successionally rather than holding the crop.