No need.
When making celery and pork dumplings, blanching the celery will affect the taste of the dumplings.
When using celery to make celery and meat dumplings, remove the leaves and roots of the celery, wash and cut into pieces, add edible salt, squeeze out the water, put it in the minced meat, add edible salt and pepper Seasonings such as flour, cooking oil, etc. can be stirred and used for filling.