Rob-Rah Posted October 8, 2008 Report Share Posted October 8, 2008 Hi, My D. ordensis has gone through tough year for no obvious reason. I am guessing the soil is the problem, as this is the only thing that has changed. I have noticed the soil is not terribly well drained or aerated. What is the recommended soil type for this? D. paradoxa is thriving in the standard peat/sand mix next to it. Does D. ordensis want a much more open soil? I fear I have lost my rather treasured D. falconeri to the same dislike of the peat and sand mix (dormancy is not meant to last quite this long...) Thanks for any suggestions. Quote Link to comment Share on other sites More sharing options...
Pyro Posted October 9, 2008 Report Share Posted October 9, 2008 Hey Rob, My petiolaris media is 2/2/1/1 sand/APS/milled sphag/PBM or peat. Works great for all of them I find, very loose and well draining and dries out at a decent rate Quote Link to comment Share on other sites More sharing options...
LJ Posted October 9, 2008 Report Share Posted October 9, 2008 I've only been growing ordensis for about 16 months and was my first petiolaris - it was perfectly happy growing in peat and perlite, when it got re-potted it got put into the usual peat and sand mix - no change, still looks very happy. I only have a few ordensis plants but they dont seem very fussy to me. Perhaps I've just been lucky though! Heather Quote Link to comment Share on other sites More sharing options...
RL7836 Posted October 17, 2008 Report Share Posted October 17, 2008 I experimented with a myriad of different mixes (mostly permutations of peat, chopped live LFS, sand (3 grain sizes) & perlite) and found no discernible difference with any of the petios. This group of plants has a significant history of frustrating growers with apparently unexplainable deaths - although several growers have now apparently found methods that have high rates of success.... Quote Link to comment Share on other sites More sharing options...
jimscott Posted October 18, 2008 Report Share Posted October 18, 2008 (edited) For the record, I have tended to mix sand and peat and had a layer of LFS on top. Now I have a layer of LFS at the bottom, followed by the main section being sand and peat, with another layer of LFS on top. Coupled with ~95 F and 15 hours of Grolite a couple inches above.. the result seems to be success. I've got thriving D. lanatas, D. paradoxas, and a ordensis x paradoxa. A new D. kenealleyi and D. falconeri are acclimating fairly well in this combination. I'm still very much a student at Petiolaris Complex! Edited October 19, 2008 by jimscott Quote Link to comment Share on other sites More sharing options...
JimmyJ Posted October 18, 2008 Report Share Posted October 18, 2008 I germinated my D. ordensis seedlings on a mix of 5 parts peat : 2 parts perlite : 2 parts vermiculite, and they are growing well in it still. This mix is actually used by a reputable Nep grower for his lowland Neps - so I would guess that D. ordensis likes a wet, peaty yet airy mix. The pot of seedlings sits in a tray of water, and the water levels are usually about an inch below the soil level. Quote Link to comment Share on other sites More sharing options...
Rob-Rah Posted October 19, 2008 Author Report Share Posted October 19, 2008 Well, I have repotted into a mix of seive-washed peat ( to remove the fine silts in it and just leave the chunkier bits), perlite, sand and grit. Will see how it does now the moisture can move through the soil way better.... Quote Link to comment Share on other sites More sharing options...
jimscott Posted November 26, 2008 Report Share Posted November 26, 2008 (edited) How do you germinate them? I had seeds fail to germinate and I had the pot in ~1/2" of ~33 C water (the air was ~29 C), loosely covered, just under a Grolite. It's in the middle covered pot in the back. What am I doing wrong - heat, light, humdity, many weeks? Edited November 26, 2008 by jimscott Quote Link to comment Share on other sites More sharing options...
Cas Posted November 26, 2008 Report Share Posted November 26, 2008 To add on to variety of potting mixes one can use - I've been using only LFS for my paradoxas and dilato-petiolaris (and now juvenile ordensis) plants. All are doing well. Quote Link to comment Share on other sites More sharing options...
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