The quality varies greatly with the soil in which it is grown, and for purposes of Admiralty specification it is graded for quality in the order Italian, European, New Zealand and St.
Ubulunga bawo buhluka kakhulu ngenxa yomhlaba okhuliselwa kuwo, kwaye ngenxa yokusetyenziselwa iSebe eliphethe iinqanawa lo mthi ulinganiselwa kubulunga obuphezulu e-Itali, eYurophu, e-New Zealand nase-St.