Based on the context and the answer, generate a question. 

Context: Della and I spent a great deal of our youth in the woods . Weekends " in the country " which equals at family property in Kent . Also Summers in Haines Alaska for a decade . The smell of earth and ferns and damp is the same .

Answer:

It reminds them of their time with Della .



Why does the narrator get nostalgic by ferns ?