Preheat grill over medium-high heat.
Peel back husk on corn and remove all the silk. Lay each ear of corn on an individual piece of foil. In a medium sized bowl, mix butter, cilantro and seasoning until well combined. Rub each ear of corn with butter mixture and pull leaves over to cover. Wrap corn with foil and grill for 20 minutes.
If grilling, grill until slightly soft, about 10 to 15 minutes.
Squeeze the lime over the corn, if desired.
Suggestion if grilling: soak corn, grill whole. Dip or brush with herb butter.