HOW DO I ROOT H. MACGILLVRAYII......?

10 years ago

Hey all. My H. Macgillvrayii 'Cedar Creek', is putting out 4 new vines!!! I am thrilled. I have bought SO many unrooted cuttings of this Hoya, and none ever root. I have lost SO much money it is silly!

So...now I will have 4 new 'stems/vines/cuttings, from my mother plant, in about a month or so, they will be ready to TRY and root. I have been trying to get it to green up, using an acid loving fert. and it is still as yellow as before. It keeps blooming on the 1 bloom spur it has. BUT this is the first new growth in over a year. So I want to root them. Or root at least 1-2 of them, And start a new plant.

But for some reason I cant root this variety. So...I wanted to know if anyone has ever air-layered their big bloom type hoyas? Esp. this variety. The small flowering hoyas i can root very easily. But this one just never roots. And then I am out $15-35 per cutting. So I am thinking that air-layering might be a great option. Has anyone done it and had success? If so, how do you do it?

OR do you all think that maybe since these cuttings will be coming from the plant that I have already, that they will root for me? Since the cuttings are coming from a plant I have that grows well in this area, and maybe the other cuttings were under to much stress from being in the mail. Sent from other states...I dont know.

So...how do you air-layer hoya cuttings, or should I try rooting 1-2 in water? Or in soil with rooting hormone? OR just leave them all on the plant, pot it plant up into a bigger hanging basket and just let the vines wind around the plant? I really want a second plant, another hanging basket of Macgillvrayii, incase anything ever happens to the mother plant. Any advise/hints would be a GREAT help! Thanks all.

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Comments (5)

Jimmy
10 years ago
If this was my plant,and wanted another one,I would re-pot it in a new chunky mix,knock off as much of the old soil as you can without tearing up the roots too much,and keep the new vines on the plant,and try to root some of the old yellow leaves in some clay balls or chunky perlite outside in the humid weather. I have never had chlorosis reverse it's self once the leaves get like that.If the new growth is deep green,your on the right track.I would grow out the new vines and drape around the plant.Here is the new growth on H.praetorii after a re-pot with fresh soil.
PoohBearLvr thanked Jimmy
tropicbreezent
10 years ago
I air layer them. Hang a pot with an open organic medium. Run a vine through the medium. Keep it moist and the humidity up. I've done it successfully a few times. You'll be able to see the roots going down through the medium without disturbing them too much.
PoohBearLvr thanked tropicbreezent
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PoohBearLvr
Original Author
10 years ago
All I could think of is maybe wrap the new vine in moist sphagnum moss, around any new 'aerial roots' that start on the new vines, then wrap it in clear Saran Wrap, to keep it moist. Then when I see roots growing in the moss, cut it off, and pot it up? Would that work? Or would that rot the vine?
Kim
10 years ago
I would imagine wrapping in saranwrap could potentially create more problems than it is worth.

Wrapping around the vine directly I would not recommend.

Drapping a piece loosely over the vine and the pot may work, if it were me I would try to fit a clear plastic bag loosely over the entire plant, mist frequently and watch for mold. I find when I am using bags for humidity tents I barely need to water.

Also, I find paperclips to be indespensible with air layering. Snap them in half, and you have two U shaped "clips" to anchor a vine into the soil.

May be worth trying with a paperclip and frequent misting, and seeing what the plant does in a few weeks before trying the bagging method.
aurorawa
10 years ago
I have had great success air layering. Cover with the bark or spaghnum moss and use an orchid rhizome clip or paperclip to hold the stem in place while rooting.

I have also had great success in taking cuttins and rooting them directly in the pot with the mother plant. Something about being surrounded by an already established root system seems to jumpstart the rooting process.