Stella Gibbons invented the sukebind for Cold Comfort Farm, and she wields it with metaphorical deftness as if it had its own long floriographic history to draw on.
I'd assumed that the sukebind and its blooming were indicative of animal urges, especially un-premeditated sex. But then it's also associated with Ada Doom, as a wreath of sukebind buds on Fig Starkadder's portrait is an explicit herald of her impending emergence--and of all the Starkadders I'd say Aunt Doom is the least in touch with their earthy sense of "what comes naturally." There are also references to harvesting sukebind which I can't decipher thematically at all.
What theme might the sukebind invoke which would explain its disparate representations throughout the text?