November 15, 2010
November 17, 2010
It could be that it is just a little underwatered, just enough so that it can't support its flowers and so it drops them.
It could also be that you have thrips. These are tiny pests that attack the base of buds and cause them to fall off. They can be very hard to see.
I would recommend increasing water just a bit and also treat the plant for thrips. This article will help: