I got a heap of cuttings from a very large vine over a year ago.
To transport them on the day I stood them up in old horse feed bags. All 3 bags were full of cuttings all standing up in there together.
Because I couldn't plant them immediately, I stood the bags under a large hibiscus tree.
There they stayed for over a year until recently. I just watered them occasionally & they got some rain I guess.
I poured a bit of liquid fertilizer over them 3 times I think.
The bags fell apart from sun on them but the cuttings were all good to go with large root systems & new shoots.
I have planted most out around the base of several palm trees & tied the shoots onto the trunks.
I still have a few to do.
Most of them have grabbed hold of their palm tree & are running up the trunk & branching.
Some are wanting to go somewhere else & sending long branches out in search of other trees I guess.
I think I only lost a few of the original cuttings that got cactoblastis grubs in them.
But I didn't loose any due to leaving them there all that time.
So this is a way you can get your dragonfruit cuttings to take without potting them.
I wonder if the soil might cause root. Mine that were left standing in bags had no soil but it was a humid moist environment inside the bags where they developed huge root systems.
The roots went through the rotting bags & into the dry soil under the hibiscus tree.
I had to cut away a lot of root systems to release some of the cuttings from the ground.
So Ash you could do that with all your prunings. Just stand them in old feed bags & leave them somewhere shady until people want them.
Mine would have gone on living in that situation forever I think. They would have eventually taken over the hibiscus tree though.