Ill mature orchids, newbie help please.

[annerobeson]

Hi, I am a newbie to the Forum and have looked for information quite a bit.

Can anyone please give me any advice on the following orchids which have started to get ill on me.

I have had then 2-3 months and recently I was away and my husband accidently used the air conditioning too much which is what I think has happened along with the weather being very hot and then becoming very dull (no sun) and cold.

The first is a large 1 metre (42 inches) tall and the top 6 flowers are ok but bottom 4 have started to shrivel since I fed and watered it. Please see first two photos.

What do I do to try and remedy the problem and save this wonderful orchid please.

The second one is a pink orchid which is buding but some flowers are shrivelling. http://www.orchidboard.com/community...1&d=1234691948

The third is a white orchid which is shrivelling all the flowers and the stem has turned yellow so I have cut it back to the best green part. See photo of how it was.

This fourth orchid was in the sun too much and has lost all flowers.

Is there anything I can get to keep them humid in cold unsunny weather... Please let me know any advice. Many thanks in advance.