What about the heat from extra sun on the ground (and fire) helping to set the flowering buds in the 'dormant' bulbs in cleared spaces? Peter (UK) >> Date: Mon, 21 May 2012 14:45:44 -0700 > >> From: rarebulbs@suddenlink.net > >> To: pbs@lists.ibiblio.org > >> Subject: [pbs] Mass blooming Calochortus > > Last year I was very dismayed to see that virtually > >> all vegetation in one area had been cleared in on both sides of the road > >> to a depth of about 20 feet. > > This spring there was a mass > >> blooming of Calochortus tolmiei in one place and C. monophyllus in > >> another. ....so maybe it isn't > >> anything mysterious at all, just the removal of competition, >