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I was cleaning out my photo files this morning, and found some pics I thought would be useful for some who have questions about rooting cuttings...
This first one show aerial rootlets...where the roots will come from. Not all hoyas display the aerial rootlets, When there are rootlets along the stem, it is not so critical to get the bottom of the node in the soil.
Shirley...sometimes I use my regular potting mix if I haven't mixed fertilizer in it, to start my plants. The fleshy stemmed ones like it more I think. I use about 50/50 peat/perlite when I change to the finer stuff. I always have the regular mix handy and use the lighter one when I have a lot to do!
I keep whichever mix damp, not soggy. In the winter when the temps get down below 75deg. I use bottom heat.
Thanks for the info on propagating hoyas. I cant wait to give it a try. The pictures are a big help. I will have to take a look at your web site. I love hoyas, they are just really hard to find in Houston.
Hey Tami, I have not had much luck with rooting leafless cuttings. On the other hand, if you can get a cutting with a couple nodes and leaves, plus the aerial roots, you are way ahead in the rooting game. One node and a leaf will do for rooting, however, I like to root 3 or 4 node, semi-ripe wood cuttings. Just try to plant your cutting so a node is below the soil line unless you have aerial roots.
Thanks Mel, I have lots of stems with the aerial roots on them, wanted to give them a hair cut and maybe root, but doesn't sound like that is going to work. Where on the mother plant should you make your cuttings? Right at the leaves or between 2 sets of nodes? Could never figure that one out.
Tami, thanks for finding that thread. I usually bury the node, or leave the bottom of it at soil level...and with the heat and humidity, I can root cuttings with aerial rootlets and not worry about a node. Most hoyas will root from the little nubs along the stem...except Eriostemmas which really need a node.
When I cut a cutting, I take it off about 2" below the node on the cutting...the mother plant will not suffer and you can always clip off anything dead on her.
I take off the bottom leaves that are pushed into the soil only if it will help stabilize the plant in the pot.
If I am rooting large leafed cuttings, often I make one node cuts and cut the leaves at the node in half. In the beginning, before the plant starts putting out roots, large leaves have a huge area to transpire moisture and they aren't taking any in (no roots to process it)...and cutting them in half lessens the loss of moisture.
Here's a tip from Lesli (another hoya grower) that I decided to try and it worked well.
She likes to root in dark color bottles so a few weeks ago there was a sale on the root beer in the dark bottles (can't remember the name right now they look like old timey bottles) so I bought them just for the purpose of rooting. So I can report that I have some root quickly using this method in water inside one of the mini greenhouses.