On 23/08/2014 19:24, Spider wrote:
On 23/08/2014 16:29, Pam Moore wrote:
On Sat, 23 Aug 2014 12:31:26 +0100, "Bob Hobden"
wrote:

"Sacha" wrote


I have 5 plants. One did just this, made new stems of buds after the
previous lot died off. However, the buds have failed to open, having
veen there a few months. Then the buds started dropping.
Could this have been the very hot weather? They are in the same place
where I always keep them. One has had a wonderful spray of flowers,
also for a few months.
Sometimes the old stems go woody and then I cut them down to the base.



Buds can abort if the plant is turned to face a different direction.
They are unable to turn with the stem, so drop off. This is why orchids
are invariably bought with flowers open. Drought and dryness can also
have the same effect.

Are you sure about the change in light direction causing bud drop,
Spider? A quick bit of googling revealed quite a few hits mentioning
temperature and humidity as causes, but none mentioning light. I have 5
phals on a north-facing bathroom window, where they flower well, but as
they grow and flower into each other I often turn them 180° to avoid
this. I've never had a bud drop off.

--

Jeff