Successful of Propagation from rose cutting(The secret to the success and only one tip!!)

Hello, I'm a traveler who studies.
This year's rose cutting was a big hit. I think I've succeeded almost 30 cuttings, but I think there was only one secret to my success this year.
I think the biggest factor was that the rose cutting period was in May.
It was also a process that concluded that temperature and humidity were the biggest conditions for successful rose cutting.
I hope this video will help those who have tried rose cutting and failed many times, or those who have tried it for the first time.
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