The name “Johnny Butterflyseed” plays off the American legend of “Johnny Appleseed” (whose real name was John Chapman. Johnny Appleseed is said to have traveled the U.S. planting apple seeds. Our Johnny does the same, but with Milkweed Seeds.

In Spanish, “Johnny Appleseed” would be translated as “Johnny Semillademanzana.”

Thus, to capture the essence of “Johnny Butterflyseed” in Spanish:

“Juanito Semillademariposa”

Here, “Juanito” is a diminutive and affectionate form of “Juan” (equivalent to “Johnny”), and “Semillademariposa” translates directly to “Butterflyseed.” This keeps the playful and endearing nature of the original name.