The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Phal repotting
It is currently Wed Feb 21, 2018 2:33 am


All times are UTC [ DST ]




Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: Phal repotting
PostPosted: Sat Feb 04, 2017 4:59 pm 
Offline
I think I like it here
I think I like it here

Joined: Thu Jan 08, 2009 12:25 am
Posts: 44
Likes: 2 posts
Liked in: 15 posts
Images: 2
My nearest city or region is: London
I am re-potting a phal ( I Hsin Salmon "Copper Star") that hasn't been re-potted for at least 3 or 4 years. Although it was long overdue a re-potting, I left it because it was doing so well, and also in a state of flower for almost 2 years. It stopped flowering a couple of months ago and the flower spike has now started to die back - which made me feel this might be a reasonable time to repot. Having taken the plant out of the pot, it is obvious it was very pot bound and many of the roots have become extremely long - 15 inches or more. To fit all these roots into a new pot will require putting it into something significantly larger, which I am slightly reluctant to do because my experience with orchids in large pots has not been great due to watering issues. Is it OK to shorten all the roots so they all fit into a 13 cm pot or is that a bad idea? Previously I haven't worried too much about trimming a couple of roots but in this case most would need to be cut.

Thanks,
John


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Sat Feb 04, 2017 8:31 pm 
Offline
Spending more time here than healthy
Spending more time here than healthy
User avatar

Joined: Wed Oct 28, 2015 5:14 pm
Posts: 206
Likes: 285 posts
Liked in: 89 posts
Images: 13
Location: Firdale park, Northwich.
I live in: United Kingdom (England)
My nearest city or region is: Vale Royal
My hardiness zone is: 8b
Hi John, I wouldn't cut the roots back, too many "wounds" would increase the chances off infection, certainly trim old and dead roots and maybe the odd one or two long ones.
I would go for a bigger pot, but fill the core of the rootball with styrene peanuts or some other inorganic material(I do this as standard with my Phals.) there is also a style of pot called an air cone which has a plastic vented cone in the centre to eliminate core waterlogging. also I have left a void in the centre of the root ball.
I once read that when watering an Orchid your not trying to water the Plant, but dampening the medium the plant lives in!
hope this helps somewhat.
Barnie.

_________________
Barnie
Horticulture --- The Quest To Put Roots On A Pencil.


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Sun Feb 05, 2017 12:31 am 
Offline
I think I like it here
I think I like it here

Joined: Thu Jan 08, 2009 12:25 am
Posts: 44
Likes: 2 posts
Liked in: 15 posts
Images: 2
My nearest city or region is: London
Hi Barnie, thanks for the suggestions. Your "peanut" idea is a simple one that I hadn't thought of, although it is one of those things that is pretty obvious really once someone tells you. Thanks again. John



OldConkerwood likes this post.
Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Sun Feb 05, 2017 10:06 am 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
I was going to suggest using a coarser potting medium to compensate for using a larger pot, but peanuts would be just as good an idea. I also wouldn't recommend cutting roots. My experience with Phalaenopsis is that they are robust and you shouldn't have too many problems.

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk



OldConkerwood likes this post.
Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Mon Feb 06, 2017 11:38 pm 
Offline
I think I like it here
I think I like it here

Joined: Thu Jan 08, 2009 12:25 am
Posts: 44
Likes: 2 posts
Liked in: 15 posts
Images: 2
My nearest city or region is: London
Hi Telipogon, I've actually just bought some new compost that does seem to be comprised of slightly larger bark pieces which I hope will be OK. Having said that, I've rather thought that some of the so called coarse bark that I've bought over the last couple of years isn't really much coarser at all! I've re-potted the plant now in a larger pot with the "peanuts", so all that's left is to see how it grows over the next few months.
John


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Tue Feb 07, 2017 2:16 pm 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
Yes, there's been some issue with particle size recently. I have also had to start sieving my potting mix to get rid of the 'fines', which I hadn't used to need to do.

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Wed Feb 08, 2017 12:24 am 
Offline
I think I like it here
I think I like it here

Joined: Thu Jan 08, 2009 12:25 am
Posts: 44
Likes: 2 posts
Liked in: 15 posts
Images: 2
My nearest city or region is: London
That's interesting; I was beginning to wonder if my memory had been playing tricks.


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Wed Feb 08, 2017 1:46 pm 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
Almost certainly not ;-)

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk


Top
 Profile  
 
 Post subject: Re: Phal repotting
PostPosted: Sun Jun 25, 2017 7:21 pm 
Offline
I think I like it here
I think I like it here

Joined: Thu Jan 08, 2009 12:25 am
Posts: 44
Likes: 2 posts
Liked in: 15 posts
Images: 2
My nearest city or region is: London
Just thought I would post an update on this. The repotting turned out to be bit of a disaster! After some months I noticed the plants leaves were wilting a little and as a result decided to have a look at the roots. Unfortunately, pretty much all the roots in the pot had rotted! I don't think I was watering the pot anymore than usual - in fact it might have been less. So in the event, I was forced to report again. I cut away all the decayed roots and repotted in a much smaller pot. Fortunately, there were a few roots outside the pot, so these have survived and as a result the plant should be OK.

John


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group