The last stand
I've been trying for a while to propagate a rose cutting I found. Apparently, rose cuttings are notorious for not growing at all, even in sugar water, unless you add some sort of root stimulant.
Google said that corn has auxins, so I crumbled up a tortilla and put it in the water as a root stimulant. It did nothing (wow...).
I also read that pothos could help, so I found a plant that looked like pothos and put it in the cup, but it turned out to be periwinkle. The rose still didn't root.
For my most recent effort, I trimmed off all of the rose that hadn't gone moldy and put it in sugar water with a drop of bleach, which some people said would prevent mold. Instead, mold just grew on the above-water part.
And now I have about a centimeter of greenish stalk left, and I want to try a Charge of the Light Brigade on it for the slightest chance it might sprout. I'm not sure if I should leave the submerged part on, which might have traces of mold or bleach, or cut it off.
I have aloe vera at home, and Google says aloe also has auxins. Would aloe work as a root stimulant? Also, is there any anti-mold stuff I can use that doesn't harm the plant, or should I just change the water daily? Finally, should I use sugar water or just regular water? Any help would be appreciated.