Troubleshooting
Spinach problems — and how to fix them
Spinach (Spinacia oleracea) 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.
Bolting to flower
Heat and long days; sow in spring and autumn, not summer.
Yellow leaves
Nitrogen deficiency or downy mildew.
White or grey patches on leaves
Downy mildew; choose resistant varieties.
Leaf miners
Squiggly tracks inside leaves; remove affected leaves and cover with mesh.
Prevent spinach problems before they start
Most spinach issues are care-mismatch, not bad luck. Dial in the basics:
Spinach problems — FAQ
Why is my spinach bolting to flower?
Heat and long days; sow in spring and autumn, not summer.
Why is my spinach yellow leaves?
Nitrogen deficiency or downy mildew.
Why is my spinach white or grey patches on leaves?
Downy mildew; choose resistant varieties.
Why is my spinach leaf miners?
Squiggly tracks inside leaves; remove affected leaves and cover with mesh.