Selecting Growing Containers Cuttings have been grown in pots, fishbowls and orange crates. The trick is to use a container where you can easily change the water, and still keep the cutting covered to preserve the high humidity. Some people cover ordinary pots with plastic bags, using sticks to hold the bags up and away from the cutting. The cutting should never touch the sides or cover of the container. One interesting idea is to use the jiffy seven peat pots inside plastic bags.
Growers suspend the little bags under their fluorescent lights.
Another method is to place a large pot with ample drainage holes in a saucer of frequently-changed water, cover with plastic wrap and keep in a shady section of the yard. Most growers use vermiculite, perlite, horticultural sand or a combination of these three. I find the sand drifts through drainage holes and perlite is too dusty, so I prefer vermiculite. Never use soil, even bagged potting soil as it isn't sterile. Water isn't recommended as a growing medium either, despite the fact that your grandma rooted her cuttings in water.