Why Are My Plant's Leaves Turning Yellow?
Yellowing is a symptom, not a disease. Where it starts on the plant tells you most of what you need to know.
Old leaves first
Yellowing that starts on the lower, older leaves often points to a nitrogen shortage, especially in containers. A balanced organic feed or compost usually fixes it. It is also normal for a few bottom leaves to age and drop.
New leaves first
Yellow new growth with green veins suggests iron or manganese is not being absorbed, often because soil pH is too high. Test the soil before adding anything.
Quick tips
- Overwatering is the most common cause
- Check drainage holes
- Look for pests under leaves
Wilting and yellowing together
If leaves yellow and wilt even when soil is moist, roots may be waterlogged or diseased. Let soil dry out, improve drainage and remove badly affected plants to protect the rest.
