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If your parsley has yellow

If your parsley has yellow leaves, it is often a watering issue.Make sure that you water consistently each day, giving it a deep soaking at the base of the plant.
Also, is your parsley in a container? Make sure it's at least 10 inches deep so the parsley's long roots aren't overcrowded.
Finally, make sure the soil is rich with nutrients and that you aren't overfertilizing.