Plant Yellow Leaves. The most common reason plant leaves turn yellow is because of stress. When the plant does not receive enough nitrogen the older leaves will begin to turn a pale yellow.
Causes of yellow leaves on houseplants. Another problem that often arises during the cultivation of the lemon tree is diseases. Well I hate to be the bearer of bad news but chances are if your squash plant leaves are turning yellow something is wrong.
Lemon tree leaves turning yellow because of disease.
What to do if your Basil Leaves are Turning Yellow. Yellow leaves on a plant might be a sign to check for compacted roots. Nitrogen potassium and magnesium deficiencies can cause older leaves to turn yellow. Amend the Soil pH.
