If your cuttings fail to root, it's simply because you chose the wrong soil. With this all-purpose soil, anything you stick in will take root.

Today let's talk about something everyone loves - taking cuttings - and why they so often fail to root.
Many gardening enthusiasts like to propagate their own little seedlings and take cuttings of flowers, but it's really not easy to get them to root. Today let's talk about the reasons. Why is that? Because the soil we use for cuttings wasn't chosen correctly.
This pot of jasmine is from a jasmine plant that was pruned before; it has been blooming the whole time.
These jasmine plants were rooted in soil. This little seedling was rooted in floral foam. The survival rate with floral foam is extremely high. Look, it has successfully adjusted after transplanting. This one was rooted in soil earlier and is already blooming directly.
And these Kalanchoe and similar plants have all taken root. Once they root, it's really very easy.
I always use my own mixed soil for cuttings. First, make sure the soil is free of bacteria. You can also use plain river sand for cuttings. Whether they root is only a matter of sooner or later - they won't get infected by pathogens, and you won't see blackened stems or rot. If you do get blackened, rotting stems, then it means you didn't choose the right soil. Either the humus content wasn't fully fermented, or the soil drainage and aeration isn't good. And another thing: after planting the cuttings, you must keep them in a well-ventilated environment.
Look at this pot of jasmine - it has already bloomed four times. After it finishes blooming, cut off those branches and stick them in to root, and they will take root. It can keep blooming forever. After blooming, it needs pruning. The pruned branches are best soaked in a rooting agent - either naphthalene acetic acid or this rooting solution. These are very helpful for the plant's rooting.
Don't use those rooting powders that come free with bought flowers, the ones that cost just a few cents a packet - they basically don't work. If you're going to use one, use the several-yuan-a-packet kind. It lasts a long time and actually works.
After taking the cuttings, you must keep the potted plant in a well-ventilated environment and keep the soil slightly moist. Then any cutting will take root. Rooting is only a matter of sooner or later - there's no such thing as failing to root or rotting.
Please help by sharing and supporting. Buyan thanks everyone here!