The growing season in Norway is fairly short, so only certain fruits can thrive. One of the better suited fruits are berries, thanks to the cooler summer weather and long daylight hours. So it should come as no surprise that Norwegians are wild about foraging and picking. Berry season begins in late June with strawberries and lasts through mid-October with black currants. Because of the brief season, berries that cannot be used immediately are frozen, or made into jam.