Germination of the birch (Betula pubescens) population has had a decent amount of attention on it due to it being considered weak over the the years but the highest germination rate has been 17.4% (Bryndís Marteinsdóttir o.fl., 2005).
Spírunarhæfni stofnsins hefur fengið þónokkra athygli þar sem hún hefur þótt léleg í gegnum árin en hæsta spírunarprósenta sem mælst hefur er 17,4% (Bryndís Marteinsdóttir o.fl, 2005).