A parsley plant and two basil plants walk into a bar...?

More than likely the plants are all hybrids and can only grow true varieties of the parent plant by cuttings. Cut 5 inch long pieces of stems, strip 3/4 of the lower leaves off. Dip the stripped end in rooting hormone, such as Schultz Rooting Hormone Powder purchased from any garden supply store, shake off the excess powder. Place the end in to its own new pot with moist soil. It may take a month for roots to form, but this is the best way to generate new plants that are genetically identical to the plants you have now.