Examples from the Web for hibernal
The Antonovka and the Hibernal seem to be about the healthiest in this respect.
Mr. Brackett: I have one trouble in grafting the Wealthy to the Hibernal on account of its making that heavy growth.
I notice the Hibernal is the best to take a bud because it is a rapid growing tree and an excellent one on which to graft.
Here, in lower latitude, the rocks appear rather scorched by a torrid sun than lashed by winter rain and hibernal furies.Unexplored Spain|Abel Chapman
An hibernal study of Arthropoda with reference to hibernation.The Biotic Associations of Cockroaches|Louis M. Roth