Fiddlehead ferns, like many other wild edibles, should be quickly blanched in boiling water. Then throw that water away and steam or stir-fry this delicious sort-of-asparagus-tasting vegetable.
Don't wait. Waiting assumes that things will be the same, or sort-of-the-same tomorrow. As the Dalai Lama says, "We don't know which will come first: rebirth or tomorrow."
The fiddleheads are being born into ferns. Don't wait. Tomorrow, or the day after tomorrow, the fiddleheads will have disappeared into lush fern foliage.
Photo from tomophobia.com