Stanhopea wardii - yellowing pbulb
Login
User Name
Password   


Registration is FREE. Click to become a member of OrchidBoard community
(You're NOT logged in)

menu menu

Sponsor
Donate Now
and become
Forum Supporter.

Stanhopea wardii - yellowing pbulb
Many perks!
<...more...>


Sponsor
 

Google


Fauna Top Sites
LOG IN/REGISTER TO CLOSE THIS ADVERTISEMENT
  #1  
Old 08-30-2016, 02:13 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default Stanhopea wardii - yellowing pbulb

One of the pbulbs of my stanhopea is yellowing. Is this normal? Or the older bulbs die, even if there's only two of them?
As described in other threads, these bulbs were potted with few roots and the leaf grow under my care.

Reply With Quote
Post Thanks / Like - 1 Likes
Likes estación seca liked this post
  #2  
Old 08-30-2016, 08:37 PM
isurus79's Avatar
isurus79 isurus79 is offline
Senior Member
American Orchid Society Judge
 

Join Date: Sep 2007
Zone: 8b
Location: Austin, Texas
Age: 39
Posts: 7,999
Default

Looks fine.
__________________
Pics on Flickr

Instagram

YouTube
Reply With Quote
Post Thanks / Like - 1 Likes
Likes estación seca liked this post
  #3  
Old 08-31-2016, 04:59 AM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

So, I'm assuming this is normal. The pbulb is not mushy so, probably, the energy used in the new growth is comming from this bulb and not the other (as I was thinking).
Reply With Quote
Post Thanks / Like - 1 Likes
Likes isurus79 liked this post
  #4  
Old 09-01-2016, 05:55 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

Well, while the pbulb dies, I think this is a good sign...



Take a closer look...

Reply With Quote
Post Thanks / Like - 3 Likes
Likes wintergirl, estación seca, charlesf6 liked this post
  #5  
Old 09-04-2016, 05:46 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

Noticed this one today... a second root growing (under different lights).
My main problem now is watering. The plant is on a south window, no direct sun, but temps have been in the 104 F during the day with a forecast of 110 F for the next days. HR is around 16%.
The issue here is that the temp near the window might be too high but I would like to let it get light.
The alternative is to move it further from the window or put it on the window where the spike was born (north window, with cooler temps and highr HR).

Would like your advise on this.
P.S. - I've been droping some drops of water at night to keep the humidity around the roots. The medium is bark + leca.


Reply With Quote
Post Thanks / Like - 1 Likes
Likes charlesf6 liked this post
  #6  
Old 09-04-2016, 09:05 PM
isurus79's Avatar
isurus79 isurus79 is offline
Senior Member
American Orchid Society Judge
 

Join Date: Sep 2007
Zone: 8b
Location: Austin, Texas
Age: 39
Posts: 7,999
Default

Stop worrying! Leave the plant alone and let it grow!!
__________________
Pics on Flickr

Instagram

YouTube
Reply With Quote
Post Thanks / Like - 1 Likes
Likes charlesf6 liked this post
  #7  
Old 09-08-2016, 07:56 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

Quote:
Originally Posted by isurus79 View Post
Stop worrying! Leave the plant alone and let it grow!!
I admit I am worried but, more important, is to consider this worrying as a real interest to understand what's happening with the plant... Remember, this is a new genera to me.

Now, back to the yellowing pbulb...
I noticed the second bulb is also yellowing.The first one is now completely yellow but not mushy, it's hard as if it was alive (maybe it is).

This made me investigate a little further. One thing I've found is that a cause for it can be high light levels. In fact this started to happen when I moved the plant from a north to a south window (bright shade, no direct sun). And the 2nd bulb is yellowing on the side faced to the window. Also, the young aerial roots have red tones in their color. All points, in fact, to high light levels without a proper adaptation.

Now I moved it to the north window again because, together with the strong light temps were also too high to the point of the pot gets hot.

Last edited by rbarata; 09-08-2016 at 07:58 PM..
Reply With Quote
  #8  
Old 09-29-2016, 04:33 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

It seems my theory of yellowing pbulbs due to light was proven wrong, at least in this case... the pbulbs are still yellow.



Now, there's a new pbulb growing at the base of the leaf and yesterday, right when I moved it from a north to a south window, I've noticed new leaves growing.




Stanhopeas need strong bright indirect light but the problem is that in my south window the HR in that room has been around 20~30% which is too low, although I mist it twice a day. And the temps are of 29 C (84 F) which is too high.

By other hand, in my north room I can get HR's of 50% and temps around 24 C (75 F) but it doesn't have the strong light they need.

So, what would you do? Keep it in the north window until the new leaves a grown or will you move it to the south side?
Reply With Quote
Post Thanks / Like - 1 Likes
Likes estación seca liked this post
  #9  
Old 09-29-2016, 09:24 PM
isurus79's Avatar
isurus79 isurus79 is offline
Senior Member
American Orchid Society Judge
 

Join Date: Sep 2007
Zone: 8b
Location: Austin, Texas
Age: 39
Posts: 7,999
Default

I would stop moving it! Leave it one place and don't touch it. Wherever it was that it put out a new growth and is actively growing two more growths is exactly where it needs to be.

Most people kill their orchids with too much love!
__________________
Pics on Flickr

Instagram

YouTube
Reply With Quote
Post Thanks / Like - 3 Likes
Likes estación seca, Salixx, charlesf6 liked this post
  #10  
Old 09-30-2016, 02:14 PM
rbarata rbarata is offline
Senior Member
 

Join Date: Mar 2015
Zone: 10a
Location: Abrantes
Posts: 3,577
Stanhopea wardii - yellowing pbulb Male
Default

Quote:
Wherever it was that it put out a new growth and is actively growing two more growths is exactly where it needs to be.
That's my oppinion too.
If it ain't broke, don't fix it!
Reply With Quote
Post Thanks / Like - 3 Likes
Likes isurus79, estación seca, charlesf6 liked this post
Reply

Bookmarks

Tags
bulbs, potted, stanhopea, threads, yellowing, pbulb, wardii


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Stanhopea wardii pbulb propagation question rbarata Catasetum and Stanhopea Alliance 21 07-14-2016 02:57 PM
Stanhopea wardii and Gongora galeata Kevinator Catasetum and Stanhopea Alliance 5 08-26-2013 06:33 AM
Please help!!! Stanhopea Wardii patrickdmay Catasetum and Stanhopea Alliance 11 02-20-2011 04:59 AM
Stanhopea wardii CableGirl Catasetum and Stanhopea Alliance 3 05-18-2008 08:15 PM
Stanhopea wardii mrobert Catasetum and Stanhopea Alliance 2 01-04-2008 07:16 AM

All times are GMT -4. The time now is 05:12 AM.

© 2007 OrchidBoard.com
Search Engine Optimisation provided by DragonByte SEO v2.0.37 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Clubs vBulletin Plugins by Drive Thru Online, Inc.