Angelo Porcelli ang.por@alice.it
Sat, 03 Jun 2006 03:16:56 PDT
Some Ornithogalum are indeed invasive, like O.umbellatum and arabicum, but 
this is due to the excessively fertile soil. In habitat O.umbellatum isn't 
at all invasive and it grows usually in small clumps or lonely. O.arabicum 
also proliferates with an abnormal number of bulbils, which make a clump of 
leaves with no flowers in the following years and thus it needs to be digged 
and clean from all offsets and replant only the biggest bulbs. But other 
species like O.montanum and O.comosum are non offsetting even in cultivation 
and are worth to pot culture

Angelo Porcelli

More information about the pbs mailing list