Propagation forum→Having trouble propagating trumpet vine

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Name: Alex T.
Los Angeles, California (Zone 10a)
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polaatx2
Dec 29, 2019 6:27 PM CST
Hello, I have an incredible trumpet vine that has grown leaps and bounds, like I've never seen:


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However, I've never been able to propagate it.

Here's my setup. I plant in a mixture of peat moss and perlite and place under plant light next to a window. I cover with plastic wrap but not tightly so there's room for air circulation. I water only when the top inch has dried out:

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I get my cuttings but cutting the end of a branch and trim the leaves from the part that goes into the dirt. I wet and tap it in rooting hormone before sticking in a hole and then squeeze the container slightly.

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In the photo below, the back row contain cuttings from Snail vine and they are doing fine. The front row are my trumpet cuttings. The ones in the right container already dead and one in the left container - which was from middle of a ticker stem - seems to be on its way dying.

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Can you tell me please what I'm doing wrong? Do I need a heating pad? I am guessing temperature not an issue because I see water evaporation on the plastic cover after I water. I also thought perhaps this is just the wrong time of the year to do this, even though I'm in Los Angeles. But the vine doesn't seem asleep and is growing. Any tips would be much appreciated and thank you in advance.
[Last edited by polaatx2 - Jan 20, 2020 6:52 PM (+)]
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Name: Jayce Kaldunski
California (Zone 9a)
Houseplants Tropicals
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Jayce_KalFUNski13
Dec 29, 2019 6:55 PM CST
Have you tried with any hardwood stems? It might be because the greenwood is just too young... I looked up snail vine, and now I will have to find somewhere in NorCal that sells them!!!
If a plant is sad, do other plants photosympathise with it???
Name: Bea
(Zone 8b)
Ponds Hellebores Composter Herbs Keeper of Koi Keeps Horses
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bumplbea
Dec 29, 2019 6:58 PM CST
Polaatx2... that's a beautiful trumpet vine. Your doing everything right. Are you using sterile soil? Sometime plants don't need rooting hormone just place in damp sterile soil. If the plastic is getting water drops, it's to wet open up the plastic for air to circulate to dry the water accumulation. To much water can cause damping off. Also take the cuttings from this years growth.

Mabe remove all but two of the top leaves and cut off the top half of each leaf so the energy will be used in the rooting area. Heat is important keep above 60 degrees. Also sink two areas of leaf nodes in the soil. Sometimes when propagating it just takes lots of cuttings and more practice.

Sometimes the plant can be divided in early spring or late winter when it's dormant. Or dig up side shoots from the mother plant . Best success rate for me is to take runners from the plant and replant in same area next to trumpet vine. In summer temps I usually just remove all the leaves from a runner and place several feet under the soil. Leave runner attached to the mother plant. Add a few rocks to hold the soil over the runner. In just a few week it has roots , then cut from mother plant and cut several 4-5" sections and place in pots or replant in garden. It's a air rooting technique. It works every time.
Good Luck.
I’m so busy... “I don’t know if I found a rope or lost a horse.”
[Last edited by bumplbea - Dec 29, 2019 7:02 PM (+)]
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Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
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oneeyeluke
Feb 3, 2020 10:46 AM CST
Don't use the dome or plastic and you will have much better rooting. The trumpet vine can't take the extra humidity.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
Bulgaria
youngrj
Sep 29, 2020 1:16 PM CST
I have had success with the trumpet vine with this technique. Take cuttings early in the year just as it is starting to come out of dormancy. Plant them in a plastic bottle mini greenhouse in a mixture of sharp sand and soil, and keep inside a greenhouse or polytunnel. I used cinnamon as a rooting powder but your favourite will be ok. Keep the sand/soil mix moist but not too wet as trumpet vine prefers free draining soil types. keep a check on the temperature in the propagator on hot days and ventilate it if necessary. Remove the top part of the propagator late July to August or as when the time is right and pot on in late September. The success rate was about 50% which I was very pleased with, I hope this helps.
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[Last edited by youngrj - Sep 29, 2020 9:51 PM (+)]
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