Cucumber Leaves Turning Yellow
Leaves problem · common pattern reported by gardeners · verify locally
What you'll see
- Older leaves yellow between veins
- Leaf edges brown
- Vines slow
Most common causes
- Magnesium or nitrogen deficiency
- Overwatering
- Downy mildew (angular yellow spots)
How to fix it
- Feed with balanced fertilizer (magnesium: Epsom salt spray)
- Improve drainage
- Remove diseased leaves
Prevention: Compost-rich soil Avoid wet foliage Rotate beds
More Cucumber problems
Grow Cucumber with confidence
Open the Cucumber growing guide → · Planting calendar · Pest & problem diagnoser
ZoneFig content reflects widely published extension-service and gardening guidance. Symptoms and causes are common patterns, not a diagnosis for any individual plant — verify locally and treat conservatively.