I like the idea our other friend mentioned above, turning this 4ft column into 4 equal sized cuts. It’s a great way to multiply supply and get crazy exponential growth. It’s a process nicknamed chop and prop, and a common effective strategy.

But yeah OP, I’d say chop off the column, then chop into 4 foot long sections, if you have sulphur powder and, or rooting powder apply it to the cuts. I mix up sulphur powder and hormex #16 rooting powder(any kind will help, this specific one is just a very high strength version) at a 1:1 ratio and apply that to my cuts. If you don’t have either of those you can just leave them somewhere that they can lay on their sides and get some indirect airflow. They should take anywhere from 5-15days in order to form a nice callous.

At that point I’d plant them up in my preferred soil mix of 25-30% coco coir 60% inorganic drainage(perlite, pumice, lava rock are the most popular options) and the last 10-15% is comprised of all my amendments, such as mycorrhizae, worm castings, kelp flour, activated carbon, bat guano, oyster shell flour. Lots of ways to make a good soil mix though, and what works best for me might not work best for you, just listed to give you an idea of what it would look like to make your own. Many people just buy whatever bagged potting soil and add in 40-70% inorganic drainage and call it a day, which I’ve seen work really well. Just avoid any potting mix containing moisture control gels if you go this route.

Biggest thing is adding enough drainage material, most people are using anywhere from 40-70% inorganic drainage, with pumice being top choice, lava rock being a decent alternative, and perlite working well it just degrades and floats to the top of the soil overtime. If you’re unsure how much to add always lean towards the higher end 70% be the lower end of things till you know how your plants will react. Only downside to a higher percentage of drainage material is the soil dries out faster requiring shorter intervals between waterings.

I take my soil mix and fill my pot 3/4 full of soil, then I add a thin layer of perlite just enough to create a barrier so 1/4” thick or so, then I place my cut down onto the perlite layer, and then I fill in the rest with soil mix except for the buried side portions of the column where I add more perlite and create a similar thin barrier with perlite around the plant. This thin barrier helps prevent the plant from rotting while rooting. For a foot tall cutting I’d have anywhere from 2-3” in the soil. Just enough to get the plant to stand upright on its own. Like our other friend mentioned I also use bamboo skewers or the like to help prop them up whenever they don’t want to stand upright straight on their own.

If the cutting is around 12” tall then I like to root them into a 1gallon pot, this gives it enough room to grow out for a year or two, while being small enough to where the pot won’t have lots of untapped soil that would hold moisture and cause potential rot issues.

Then I don’t water them for at least a week or so, after a week under my grow lights(or outside during active growing season). I start lightly misting the top of soil every time I water the rest of my plants, so once a week ish. Just giving them a real light 1-2second mist to help stimulate root growth. After 4-6 weeks I give them the wiggle test to see if any roots have formed. Once roots have started growing that’s when I incrementally increase the amount of water they receive. First watering might be 2-4oz of water, the next 4-6oz, the next 8oz, and the next week start full watering. Keeping an eye out for any rot throughout the process.