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Old 17-05-2007, 05:48 AM posted to rec.gardens.orchids
K Barrett K Barrett is offline
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First recorded activity by GardenBanter: Jul 2006
Posts: 1,344
Default dendrobium re-potting / splitting

I mostly have Dends like Roy Tokunaga and other of the alexandrae types.
I've been keeping them in small pots, tightly potted. I moved a Den Nellie
Morely into a larger 6" clay pot and am trying straight lava rock with it,
mostly for the weight. The plant is huge. When I repotted it I saw I'd
placed it in larger pots without removing the older pot twice, so it was in
a 3" square plastic pot in a 4-5" plastic pot inside a 6" clay pot.... I
have a Peng Seng that I'm trying in my cattleya bark mix.... fine bark, lava
rock/perlite about a 3:1:1 ratio. Plastic pot. I placed a sulaweisiense
(glomeratum, what have you) and an obtusisepalum in the same sort of mix.
The vendor potted these in clay pot and sphagnum moss, but the moss had gone
very sour...so into the bark and rock mix...we'll see if its too open for
their roots.

That's what I hate. I move plants into what I *think* should work and then
worry and fret that they'll go downhill because they are acclimated to teh
old mix. Granted usually they improve (even in the short term) becasue they
are no longer in the crap they were in....but I worry that teh mix
ultimately isn't what they require in nature. Like too open/airy for roots.

Well, we'll see what happens.

K

"John Varigos" wrote in message
om...
Hi Holly

Looks like an Australian dendrobium hybrid with some D. kingianum in its
heritage.

I would pot it up into a larger pot and let it spread out. I wouldn't
break it up as you will get quite a good specimen plant over the next few
years.

Now would be a good time to repot - spring in NH. Re the keikis, once
they have some reasonably sized roots, pick them off and pot up. They make
wonderful presents.

Don't have any experience with S/H query - perhaps Ray can advise. In
nature they can experience long periods of drought so the plants are used
to receiving no water for extended periods. I grow most of my native
dendrobiums outside under a jacaranda tree except for the more
subtropical/tropical species. My D. kingianums are mounted on horizontal
tree fern slabs enabling them to spread out as they grow. Avoids having
to repot them but then again, I don't have to bring them inside during
winter.

~John
Melbourne, Australia


"holly" wrote in message
...
hi Danny,

i'm not sure what it is - the id tag doesn't list a name,
but here is a link to a pic:
http://i191.photobucket.com/albums/z...ylang/den1.jpg
thanks


"danny" wrote in message
...
There are different kinds of dendrobiums, I would never offer any advice
without at least some vague idea of which ones you're dealing with.
-danny