I've read about cloning setup folks use to clone plants and some emphasize to light-proof the cloning tub so the ends you're attempting to get roots to grow from are in complete darkness. Is this a general rule to follow to help your cuttings root sooner?
I had four thyme cuttings in this glass for roughly a month(I think) and only one of them developed roots...
It's better than nothing but I am always looking to improve my technique. Appreciate any input.