Yellow leaf, yellow on stalk of dendrobium?

[butterfly_muse]

I soaked it in kelp max before repotting it and moved it into chc/peat/charcoal/bark and I moved it to much smaller pot.

[Nexogen]

Attention, peat is attractive for fungus gnat

[butterfly_muse]

I have house plants in soil, the fungus gnat is a thing here anyway, lol. I have methods for taking care of them, don't worry.

The roots, when I checked them, were firm and not hollowed/black/mushy/rotted, so I didn't cut any of them. I just downsized its pot. It was damp when I go it so I think it may have actually been holding onto water. =\ It was overpotted, very tightly, in sphag.

What concerns me the most is the cane turning that weird dark green color under the leaves. What is that? The canes themselves are very firm and rigid, so..

Ideas?

[Island Girl]

I think the roots looked fine, and don't think there's a problem with them at all.. The yellow leaf could be dropping from old age.. That happened to mine when I first brought it home from Lowes a little over a year ago... It has grown two new canes since this spring

The only weird thing that I noticed, is in your first pic, where u show the dark green color on the cane, under the top leaves.. Normally, just that (dark green) color by itself wouldn't bother me, I'm pretty sure (tho, not entirely) that I've seen that... But the dark green area on yours, seems to have a yellow leading edge (if that makes sense?) and I wonder if that's cause for concern? I would ask someone who is familiar with these, as I'm not.. I only have one of these guys, so I'm not comfortable with saying if this is wrong or not... But definitely keep an eye out, and if it grows/gets worse, then obviously something's wrong. Sorry I can't be of more help!

I do agree with your potting media choice... Mine is in hydroton, large/coarse bark, large/coarse charcoal, large/coarse sponge rock, and large diatomite... I like to water often, so by adding CHC, etc. means you can water less frequently, so that's good too! And, they definitely like to be "root bound" (in fact, I was gonna comment on your other thread about potting media for this guy, but I think I got distracted, and never posted... Lol)

[Nexogen]

Originally Posted by Island Girl

I think the roots looked fine, and don't think there's a problem with them at all.. The yellow leaf could be dropping from old age.. That happened to mine when I first brought it home from Lowes a little over a year ago... It has grown two new canes since this spring

The only weird thing that I noticed, is in your first pic, where u show the dark green color on the cane, under the top leaves.. Normally, just that (dark green) color by itself wouldn't bother me, I'm pretty sure (tho, not entirely) that I've seen that... But the dark green area on yours, seems to have a yellow leading edge (if that makes sense?) and I wonder if that's cause for concern? I would ask someone who is familiar with these, as I'm not.. I only have one of these guys, so I'm not comfortable with saying if this is wrong or not... But definitely keep an eye out, and if it grows/gets worse, then obviously something's wrong. Sorry I can't be of more help!

I do agree with your potting media choice... Mine is in hydroton, large/coarse bark, large/coarse charcoal, large/coarse sponge rock, and large diatomite... I like to water often, so by adding CHC, etc. means you can water less frequently, so that's good too! And, they definitely like to be "root bound" (in fact, I was gonna comment on your other thread about potting media for this guy, but I think I got distracted, and never posted... Lol)

Mea culpa

I agree with you 100% and root is 0K, the algae color is green-blue dark.




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My attenuate circumstance: in the beginning; (First Dendrobium, help please! ), first pictures with the pot, plant and sphagnum moss was for me scenes from Just For Laughs Gags (almost impossible for a plant to survive).

I fell it’s a trick

[vjo]

Huh???

[butterfly_muse]

I squeezed the area where the dark green color appears, because it looks as though it should be mushy, but the stalk is rigid and firm. =\ So I have no idea. I hope someone who is more familiar with these comes along and can help me. I have googled until my eyes bled and I can't find *anything* about the dark green color.

[Cactuseed]

i think your dendro is going to be fine. good advice above as to coarse mix & underpotting. Dendro roots can look worse than they are, i think yours look fine.

[Nexogen]

I don’t contest another methods, justify my radical method.
Several growers agree or not but my anterior solutions works 99.9%.

IMO.

If you want to repot dendrobium hard cane without stress, you can do only in growing season and don’t disturb the roots, remove the old mix from the pot being careful not or minimum touching the roots and the plant should recover within a couple of weeks.

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Now the roots looks good - completely dry out (it was dehydrated for long period of time) but after copious watering became mushy, practically without utility for next growth cycle season.
Mature growth in stress and desperate effort to survive produce keikis (or flowers), in your case (2-4) keikis, when roots appear you may mist these keikis, once there are at least two roots of one to two inches in length the keikis may be gently detached from the dying cane and potted in very good derange media and a small pot, they may reach bloom size in as little one year.
In spring and summer grow like weeds, give them copious amounts of water and fertilizer but reduce the water considerably in winter.

[AussieVanda]

Ditch the peat. Nexogen has given you some good drum on potting media. I use chunky volcanic rock in all my potted Dendrobium but same principles as Nexogen method. Those that aren't in pots are plain mounted on trees.