Dendrobium nobile - Flowers last one week only

[rbarata]

Hello, my friends

I have a Dendrobium nobile and I noticed the flowers, when bloomed, last for one week only (two weeks, the maximum). Is this normal?

I'm asking this because when I bought it, it was full of flowers and they last for 3 weeks / one month.
I have it for almost two years, it seems to be growing normaly, it's now on the 2nd blooming season in under my care.

Thank you

[rbarata]

Bump!

[WhiteRabbit]

What are the temperatures? How often do you water?

[rbarata]

Well, in winter it's around 12~15ºC, now it's around 22ºC, in summer 24 to 28ºC (no sun, just light from a northern window). Now I'm watering once per week, in summer I double or triple it.

[WhiteRabbit]

With the warmer temps, it might need water more often. I don't know if that's what caused the blooms to drop early, tho. How do the canes look (have they shriveled excessively?)

[rbarata]

How do the canes look (have they shriveled excessively?)

They seem normal to me. Take a look for yourself...

Those dried flowers last 3 days only. All the others are almost one week. I don't know how much time they will be there.

[WhiteRabbit]

Yeah, looks good to me ...
Any cold drafts? Warm, dry drafts?

[rbarata]

Any cold drafts? Warm, dry drafts?

Well, one thing might be the cause...air conditioner. Not in use for now but I used it until two weeks ago (when I say I used it, it was only for half an hour to increase the temp). Not too much time using it but it might be enough to cause this.

[rbarata]

Update this year flowers last for almost 2 months...I still have a few but not for long.
Also the purpose of my update is to show you the 3 new canes that are growing...usually it's only one but this year I have 3...I can imagine next spring lots of flowers...and pictures too.





Usually, what I do, is to turn the pot so that the news canes, following the light source, twist themselves making an helicoil twist around the oldercanes. This is to stabilize the plant and pot.

[WhiteRabbit]