Seeds grow very slowly due to their dense shell, which does not pass water and air badly, and also because of the high content of essential oil in aniseed fruits.
Seeds waxay u koraan si tartiib ah sababtoo ah qolkooda cufan, oo aan ku dhaafin biyaha iyo hawada si xun, iyo sidoo kale sababtoo ah maaddada sare ee saliidda lagama maarmaanka ah ee miraha.