The parsley plant I am growing has some issues. The stems are about 6 to 7 inches long the plant grows out of the ground like an inch to two inches. The plant is about 3 to 4 years old. How do I get it back like it was.
This is a very mature Parsley plant. By this time your plant has a very deep tap root and plants of this age may not grow as well. Make sure the soil is nice and loose.
Parsley needs a nice sunny location and it may be getting leggy if it is not getting enough sunlight.
Harvest the older leaves to force the plant to grow new leaves.
Your plant is likely tired and you may want to consider starting some new plants to replace this one.